Head Cooling Device

Abstract

It can be stably installed inside the protective helmet. [Solution] The head cooling device 100 is installed inside a protective helmet 90 having a helmet body 91 and a wearing body 92 attached to the inside of the helmet body 91, and comprises a plate-shaped first cooling device main body 1a arranged between the helmet body 91 and the wearing body 92, a plate-shaped second cooling device main body 1b layered on the first cooling device main body 1a so as to sandwich the wearing body 92 together with the first cooling device main body 1a, and a connecting device 7 that detachably connects the second cooling device main body 1b to the first cooling device main body 1a.

Description

[Technical field]

[0001] The technology disclosed herein relates to a head cooling device. [Background technology]

[0002] Patent Document 1 discloses a head cooling device for cooling the human head. The head cooling device is formed in a hemispherical shape curved along the head. Specifically, the head cooling device is formed of an outer wall portion having a recess capable of accommodating the head, an inner wall portion facing the outer wall portion with a gap therebetween, and a cooling agent filled in the gap. The head cooling device is placed over the head so that the head is accommodated in the recess. The head is cooled by the cooling agent of the head cooling device placed over the head in this manner. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-755 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the head cooling device as described above is placed inside a protective cap for use, there is a concern that it may be difficult to stably place the head cooling device inside the protective cap.

[0005] The technology disclosed herein has been made in consideration of the above points, and its purpose is to provide a head cooling device that can be stably installed inside a protective helmet. [Means for solving the problem]

[0006] The head cooling device disclosed herein is a head cooling device installed inside a protective hat having a hat body and a wearing body attached to the inside of the hat body, and comprises a plate-shaped first cooling device main body arranged between the hat body and the wearing body, a plate-shaped second cooling device main body layered on the first cooling device main body so as to sandwich the wearing body together with the first cooling device main body, and a connecting device that detachably connects the second cooling device main body to the first cooling device main body. Effect of the Invention

[0007] The head cooling device can be stably installed inside the protective helmet. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view of the head cooling device when not in use. [Diagram 2] FIG. 2 is a bottom view of the head cooling device when not in use. [Diagram 3] FIG. 3 is a cross-sectional view of the head cooling device taken along line III-III in FIG. [Figure 4] FIG. 4 is a schematic diagram showing the head cooling device in use. [Diagram 5] FIG. 5 is a bottom view of the first cooling tool body showing the facing surface of the first cooling tool body facing the second cooling tool body. [Figure 6] FIG. 6 is a plan view of the second cooling tool body showing the facing surface of the second cooling tool body facing the first cooling tool body. [Figure 7] FIG. 7 is a side view of the protective cap, showing a partial cross section of the protective cap. [Figure 8] FIG. 8 is a cross-sectional view of a protective cap equipped with a head cooling device. [Figure 9] FIG. 9 is a bottom view of the protective cap on which the first cooling device body is installed. [Figure 10] FIG. 10 is a bottom view of the protective cap on which the first cooling device body and the second cooling device body are installed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Exemplary embodiments will now be described in detail with reference to the accompanying drawings.

[0010] Fig. 1 is a plan view of the head cooling device 100 when not in use. Fig. 2 is a bottom view of the head cooling device 100 when not in use. Fig. 3 is a cross-sectional view of the head cooling device 100 taken along line III-III in Fig. 1. Fig. 4 is a schematic view showing the head cooling device 100 when in use.

[0011] The head cooling device 100 is used for cooling the head 8 of the human body. The head cooling device 100 is placed inside a protective helmet 90 that is worn on the head 8 of the human body. Specifically, the head cooling device 100 cools the frontal head 81, the back of the head 82, the top of the head 83, and the sides of the head 84 of the human body. The protective helmet 90 is, for example, a work helmet, a motorcycle helmet, a bicycle helmet, or a mountain climbing helmet.

[0012] The head cooling device 100 comprises a first cooling device body 1a and a second cooling device body 1b for cooling the head 8, and a connector 7 for detachably connecting the second cooling device body 1b to the first cooling device body 1a. When the head cooling device 100 is in use, the first cooling device body 1a is located at the top, and the second cooling device body 1b is located at the bottom. The first cooling device body 1a is stacked above the second cooling device body 1b. In other words, the second cooling device body 1b is located on the head 8 side, and the first cooling device body 1a is located on the opposite side to the head 8. As a result, the second cooling device body 1b comes into contact with the head 8, and the first cooling device body 1a does not come into contact with the head 8.

[0013] Hereinafter, each direction in the head cooling device 100 will be described as each direction in the use state of the head cooling device 100. For example, the upward direction in the head cooling device 100 coincides with the upward direction in the use state of the head cooling device 100.

[0014] The first cooling tool body 1a has flexibility. The first cooling tool body 1a is formed in a plate shape. In this example, the shape of the first cooling tool body 1a is a circle with a plurality of cuts 6a, which will be described later. The first cooling tool body 1a can be transformed into a plate-like first state and a curved second state. The curved shape in the second state can be a cup-like, bowl-like, bell-like, or spherical crown-like shape. The first state is a state when the head cooling tool 100 is not in use, and the second state is a state when the head cooling tool 100 is in use. In the following description, unless otherwise specified, the first cooling tool body 1a in the first state will be described. In this example, the first cooling tool body 1a is formed in an overall circular shape. The first cooling tool body 1a has an outer peripheral edge 19a. The first cooling tool body 1a has a cooling agent 2a and an exterior pack 3a that contains the cooling agent 2a.

[0015] The ice pack 2a is a PCM (Phase Change Material) that absorbs heat and changes from a solid phase to a liquid phase. The ice pack 2a includes, for example, an aliphatic hydrocarbon. The aliphatic hydrocarbon is, for example, paraffin or an aliphatic saturated hydrocarbon. The ice pack 2a includes, for example, tetradecane (C 14 H 30 ), hexadecane (C 16 H 34 ) and octadecane (C 18 H 38 ) The ice pack 2a may contain only one or two of tetradecane, hexadecane, and octadecane, or may contain all of them. In addition to aliphatic hydrocarbons, the ice pack 2a may further contain a super absorbent polymer (SAP), water, aroma, graphite, organic matter, or minerals. The melting point of the ice pack 2a is, for example, room temperature. The melting point of the ice pack 2a is preferably 5°C or higher and 35°C or lower, and more preferably 15°C or higher and 35°C or lower. When in the solid phase and liquid phase, the ice pack 2a absorbs the heat of the human body as sensible heat. When changing from the solid phase to the liquid phase, the ice pack 2a absorbs the heat of the human body as latent heat, specifically, heat of fusion.

[0016] The exterior pack 3a has flexibility and is made of one or a mixture of resins such as thermoplastic polyurethane (TPU), nylon, polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP).

[0017] The exterior pack 3a includes a plurality of storage sections 32a that individually store the ice packs 2a. The exterior pack 3a further includes a peripheral portion 31a that forms the outer peripheral edge 19a of the first cooling device main body 1a, and a partition portion 33a that divides the internal space into a plurality of storage sections 32a. For ease of explanation, the plurality of storage sections 32a are indicated by dots in FIG. 1. The same applies to FIG. 2, which will be described later.

[0018] Each of the plurality of storage sections 32a is sealed. That is, the ice pack 2a is stored in each storage section 32a individually. In this example, each of the plurality of storage sections 32a has a substantially trapezoidal or substantially semicircular planar shape. At substantially the center of the first cooling device main body 1a, two substantially semicircular storage sections 32a are arranged to form a substantially circular shape. A plurality of substantially trapezoidal storage sections 32a are arranged radially around the two substantially semicircular storage sections 32a. In detail, three substantially trapezoidal storage sections 32a are arranged radially to form one group of substantially trapezoidal storage sections 32a, and six groups of substantially trapezoidal storage sections 32a are arranged radially around the substantially semicircular storage section 32a.

[0019] The multiple storage sections 32a are arranged to correspond to the frontal head 81, the back of the head 82, the parietal head 83, and the sides of the head 84 of the human body when the head cooling device 100 is in use. In detail, the approximately semicircular storage section 32a is arranged to correspond to the parietal head 83 of the human body when the head cooling device 100 is in use. The approximately trapezoidal storage section 32a is arranged to correspond to the frontal head 81, the back of the head 82, and the sides of the head 84 of the human body when the head cooling device 100 is in use.

[0020] The exterior pack 3a has a plurality of notches 6a formed on the outer peripheral edge 19a. The notches 6a extend from the outer peripheral edge 19a toward the radial inside of the first cooling device main body 1a. The notches 6a have a width that increases from the inside of the first cooling device main body 1a toward the outer peripheral edge 19a in the extending direction of the notches 6a. The notches 6a are formed in a roughly wedge shape. Six of the multiple notches 6a are formed at equal intervals in the direction along the outer peripheral edge 19a.

[0021] The outer pack 3a includes a first portion 35a corresponding to a top portion 83 of the human head, and a second portion 36a corresponding to a front portion 81, a back portion 82, and a side portion 84 of the human head. The second portion 36a includes a plurality of segments 37a that are divided in the circumferential direction.

[0022] Specifically, the first portion 35a is formed in a circular shape. The second portion 36a is formed in a substantially annular shape surrounding the first portion 35a. The outer peripheral edge of the first portion 35a and the inner peripheral edge of the second portion 36a are aligned. The first portion 35a and the second portion 36a are continuous with each other.

[0023] The notches 6a are formed in the second portion 36a. The notches 6a extend from the outer peripheral edge 19a to a predetermined position between the outer peripheral edge 19a and the outer peripheral edge of the first portion 35a. In this example, the notches 6a extend from the outer peripheral edge 19a to the outer peripheral edge of the first portion 35a. The second portion 36a is divided into six in the circumferential direction by the notches 6a to form six divided bodies 37a. The six divided bodies 37a extend radially.

[0024] A substantially semicircular storage portion 32a is disposed in the first portion 35a, and a substantially trapezoidal storage portion 32a is disposed in the divided body 37a. More specifically, of the three substantially trapezoidal storage portions 32a arranged in the radial direction, the inner storage portion 32a is disposed across the first portion 35a and the divided body 37a.

[0025] The exterior pack 3a is formed by overlapping and bonding two sheets together. Specifically, the exterior pack 3a is formed by bonding a first sheet 41a and a second sheet 42a that face each other in the thickness direction. The first sheet 41a is disposed on the upper side, and the second sheet 42a is disposed on the lower side.

[0026] The first sheet 41a has a plurality of recesses 411a recessed in a direction opposite to the second sheet 42a. The second sheet 42a is flat. The recesses 411a are closed by the second sheet 42a. The first sheet 41a and the second sheet 42a are joined to each other such that the recesses 411a are sealed by the second sheet 42a.

[0027] Specifically, the first sheet 41a except for the recesses 411a, i.e., the outer peripheral edge of the first sheet 41a and the portions between the adjacent recesses 411a, are joined to the second sheet 42a. The joining of the first sheet 41a and the second sheet 42a is achieved by, for example, thermal welding. Note that in FIG. 3, the boundaries of the joined portions in the exterior pack 3a are shown by solid lines, but in reality, the boundaries of the joined portions do not have to be clearly visible.

[0028] The peripheral portion 31a is formed by joining the peripheral portion of the first sheet 41a and the peripheral portion of the second sheet 42a. The storage portion 32a is formed by the recessed portion 411a and the second sheet 42a. The partition portion 33a is formed by joining a portion of the first sheet 41a between adjacent recessed portions 411a and the second sheet 42a.

[0029] The second cooling device body 1b has a cooling agent 2b and an exterior pack 3b that contains the cooling agent 2b. The components marked with the letter "b" in the second cooling device body 1b correspond to the components marked with the letter "a" in the first cooling device body 1a, and hereinafter, unless otherwise specified, the components of the second cooling device body 1b are the same as the components of the first cooling device body 1a.

[0030] The second cooling device body 1b has the same shape as the first cooling device body 1a in a plan view. The second cooling device body 1b is formed in a plate shape. The second cooling device body 1b has flexibility. The second cooling device body 1b is deformable between a plate-like first state and a curved second state. The first state is the state when the head cooling device 100 is not in use, and the second state is the state when the head cooling device 100 is in use.

[0031] The ice pack 2b is a PCM (Phase Change Material) that absorbs heat and changes from a solid phase to a liquid phase. The ice pack 2b includes, for example, an aliphatic hydrocarbon. The melting point of the ice pack 2b is, for example, room temperature. The melting point of the ice pack 2b is preferably 5°C or higher and 35°C or lower, and more preferably 15°C or higher and 35°C or lower. When in the solid phase and liquid phase, the ice pack 2b absorbs the heat of the human body as sensible heat. When changing from the solid phase to the liquid phase, the ice pack 2b absorbs the heat of the human body as latent heat, more specifically, heat of fusion.

[0032] The melting point of the ice pack 2b (hereinafter also referred to as "second ice pack 2b") of the second cooling device main body 1b is different from the melting point of the ice pack 2a (hereinafter also referred to as "first ice pack 2a") of the first cooling device main body 1a. In detail, the melting point of the second ice pack 2b is lower than the melting point of the first ice pack 2a. For example, the melting point of the second ice pack 2b is 18°C, and the melting point of the first ice pack 2a is 28°C. In order to make the melting point of the second ice pack 2b lower than the melting point of the first ice pack 2a, for example, an aliphatic hydrocarbon having a melting point lower than the melting point of the aliphatic hydrocarbon of the first ice pack 2a may be used as the aliphatic hydrocarbon of the second ice pack 2b. The means for making the melting point of the second ice pack 2b lower than the melting point of the first ice pack 2a is not limited. For example, even when aliphatic hydrocarbons having the same melting point are used, by making the ratio of aliphatic hydrocarbons contained in the first ice pack 2a different from the ratio of aliphatic hydrocarbons contained in the second ice pack 2b, the melting point of the second ice pack 2b can be made lower than the melting point of the first ice pack 2a.

[0033] The exterior pack 3b has flexibility and is made of one or a mixture of resins such as thermoplastic polyurethane (TPU), nylon, polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP).

[0034] The exterior pack 3b includes a plurality of storage sections 32b that individually store the ice packs 2b. The exterior pack 3b further includes a peripheral portion 31b that forms the outer periphery 19b of the second cooling device main body 1b, and a partition portion 33b that partitions the internal space into a plurality of storage sections 32b.

[0035] Each of the plurality of storage sections 32b is sealed. That is, the ice pack 2b is stored in each storage section 32b. In this example, each of the plurality of storage sections 32b has a substantially trapezoidal or semicircular planar shape.

[0036] The multiple storage sections 32b come into contact with the frontal region 81, the back of the head 82, the parietal region 83, and the sides of the head 84 of the human body when the head cooling device 100 is in use, and cool the head 8. In detail, the approximately semicircular storage section 32b is disposed corresponding to the parietal region 83 of the human body when the head cooling device 100 is in use. The approximately trapezoidal storage section 32b is disposed corresponding to the frontal region 81, the back of the head 82, and the sides of the head 84 of the human body when the head cooling device 100 is in use.

[0037] The thickness t2 of the storage section 32b of the second cooling device main body 1b is smaller than the thickness t1 of the storage section 32a of the first cooling device main body 1a. The thickness t2 of the storage section 32b refers to the maximum thickness of the storage section 32b. The thickness t1 of the storage section 32a refers to the maximum thickness of the storage section 32a.

[0038] The exterior pack 3b has a plurality of notches 6b formed on an outer peripheral edge 19b. The notches 6b extend from the outer peripheral edge 19b toward the inside in the radial direction of the second cooling device main body 1b. The notches 6b have a width that increases from the inside of the second cooling device main body 1b toward the outer peripheral edge 19b in the extending direction of the notches 6b.

[0039] The outer pack 3b includes a first portion 35b corresponding to a top portion 83 of the human head, and a second portion 36b corresponding to a front portion 81, a back portion 82, and a side portion 84 of the human head. The second portion 36b includes a plurality of segments 37b that are divided in the circumferential direction.

[0040] Specifically, the first portion 35b cools a top portion 83 of the human body. The first portion 35b is formed in a circular shape. The second portion 36b cools a front portion 81, a back portion 82, and a side portion 84 of the human body. The second portion 36b is formed in a substantially annular shape surrounding the first portion 35b.

[0041] The cuts 6b are formed in the second portion 36b. The second portion 36b is divided into six in the circumferential direction by the cuts 6b to form six divided bodies 37b. The six divided bodies 37b extend radially.

[0042] A substantially semicircular storage portion 32b is disposed in the first portion 35b, and a substantially trapezoidal storage portion 32b is disposed in the divided body 37b. More specifically, of the three substantially trapezoidal storage portions 32b arranged in the radial direction, the inner storage portion 32b is disposed across the first portion 35b and the divided body 37b.

[0043] The first portion 35b of the second cooling device body 1b overlaps with the first portion 35a of the first cooling device body 1a. The second portion 36b of the second cooling device body 1b overlaps with the second portion 36a of the first cooling device body 1a. Specifically, each divided body 37b of the second cooling device body 1b overlaps with each divided body 37a of the first cooling device body 1a.

[0044] The exterior pack 3b is formed by overlapping and bonding two sheets together. Specifically, the exterior pack 3b is formed by bonding a first sheet 41b and a second sheet 42b that face each other in the thickness direction. The first sheet 41b is disposed on the upper side, and the second sheet 42b is disposed on the lower side.

[0045] The first sheet 41b has a plurality of recesses 411b recessed in a direction opposite to the second sheet 42b. The second sheet 42b has a plurality of recesses 421b recessed in a direction opposite to the first sheet 41b. The recesses 411b and 421b face each other. The recesses 411b and 421b are closed off from each other. The first sheet 41b and the second sheet 42b are joined to each other so that the recesses 411b and 421b are sealed off.

[0046] Specifically, a portion of the first sheet 41b excluding the recesses 411b, i.e., a portion between the outer peripheral edge of the first sheet 41b and adjacent recesses 411b, is joined to a portion of the second sheet 42b excluding the recesses 421b, i.e., a portion between the outer peripheral edge of the second sheet 42b and adjacent recesses 421b. More specifically, the outer peripheral edge of the first sheet 41b and the outer peripheral edge of the second sheet 42b are joined, and a portion between adjacent recesses 411b of the first sheet 41b and a portion between adjacent recesses 421b of the second sheet 42b are joined. The joining of the first sheet 41b and the second sheet 42b is achieved by, for example, heat welding.

[0047] The peripheral portion 31b is formed by joining the peripheral portion of the first sheet 41b and the peripheral portion of the second sheet 42b. The storage portion 32b is formed by a recess 411b and a recess 421b. The partition portion 33b is formed by joining a portion between adjacent recesses 411b of the first sheet 41b and a portion between adjacent recesses 421b of the second sheet 42b.

[0048] The connector 7 is disposed between the first cooling device body 1a and the second cooling device body 1b. Specifically, the connector 7 is disposed between the opposing surface of the first cooling device body 1a facing the second cooling device body 1b and the opposing surface of the second cooling device body 1b facing the first cooling device body 1a.

[0049] The connector 7 includes a first connecting portion 71 and a second connecting portion 72. The first connecting portion 71 is provided on the first cooling device body 1a. The second connecting portion 72 is provided on the second cooling device body 1b. The second connecting portion 72 is detachably connected to the first connecting portion 71. In FIG. 3, the first connecting portion 71 and the second connecting portion 72 are drawn thicker than the other members in order to make them easier to distinguish.

[0050] The first connecting portion 71 and the second connecting portion 72 are magnets. The magnets are, for example, ferrite magnets, neodymium magnets, etc. The first connecting portion 71 and the second connecting portion 72 are round, but may be polygonal, and the shapes of the first connecting portion 71 and the second connecting portion 72 are not limited.

[0051] The first connecting portion 71 is provided on the surface of the first cooling device body 1a facing the second cooling device body 1b. Specifically, the first connecting portion 71 is covered with a cover sheet 43a and sandwiched between the second sheet 42a of the first cooling device body 1a and the cover sheet 43a. The cover sheet 43a is joined to the second sheet 42a. The joining of the cover sheet 43a and the second sheet 42a is achieved by, for example, thermal welding.

[0052] The second connecting portion 72 is provided on a surface of the second cooling device body 1b facing the first cooling device body 1a. Specifically, the second connecting portion 72 is covered with a cover sheet 43b and sandwiched between the first sheet 41b of the second cooling device body 1b and the cover sheet 43b. The cover sheet 43b is joined to the first sheet 41b. The joining of the cover sheet 43b and the first sheet 41b is achieved by, for example, thermal welding.

[0053] 5 is a bottom view of the first cooling tool body 1a showing the surface of the first cooling tool body 1a facing the second cooling tool body 1b. The first connecting parts 71 are disposed on each of the divided bodies 37a. Specifically, the first connecting parts 71 are disposed corresponding to each of the multiple storage parts 32a disposed on the divided body 37a.

[0054] The multiple first connecting parts 71 are arranged radially from the center of the first cooling device main body 1a. More specifically, three first connecting parts 71 are arranged in the radial direction to form one group of first connecting parts 71, and six groups of first connecting parts 71 are arranged radially from the center of the first cooling device main body 1a.

[0055] More specifically, the multiple first connecting parts 71 are arranged radially from the center of the first cooling device main body 1a. The magnetic poles of the first connecting parts 71 adjacent in the radial direction (diameter direction) are different. In other words, when viewed from the bottom surface of the first cooling device main body 1a, the first connecting parts 71 with N poles and the first connecting parts 71 with S poles are arranged alternately in the radial direction. The magnetic poles of the front and back of the first connecting parts 71 are different.

[0056] The multiple first connecting parts 71 are arranged in a line in the circumferential direction of the first cooling device main body 1a. The magnetic poles of the first connecting parts 71 adjacent in the circumferential direction are different. In other words, when viewed from the bottom surface of the first cooling device main body 1a, the first connecting parts 71 with N poles and the first connecting parts 71 with S poles are arranged alternately in the circumferential direction.

[0057] 6 is a plan view of the second cooling device body 1b showing the surface of the second cooling device body 1b facing the first cooling device body 1a. The second connecting parts 72 are arranged on each of the multiple divisional bodies 37b. Specifically, the second connecting parts 72 are arranged corresponding to each of the multiple storage parts 32b arranged on the divisional body 37b.

[0058] The second connecting parts 72 are arranged radially from the center of the second cooling device main body 1b. More specifically, three second connecting parts 72 are arranged in the radial direction to form one group of second connecting parts 72, and six groups of second connecting parts 72 are arranged radially from the center of the second cooling device main body 1b.

[0059] More specifically, the multiple second connecting parts 72 are arranged radially from the center of the second cooling device main body 1b. The magnetic poles of the second connecting parts 72 adjacent in the radial direction (diameter direction) are different. In other words, when viewed from the plane of the second cooling device main body 1b, the second connecting parts 72 with N poles and the second connecting parts 72 with S poles are arranged alternately in the radial direction. The magnetic poles of the front and back of the second connecting parts 72 are different.

[0060] The second connecting parts 72 are arranged in a line in the circumferential direction of the second cooling device main body 1b. The magnetic poles of the second connecting parts 72 adjacent in the circumferential direction are different. In other words, when viewed from the bottom surface of the second cooling device main body 1b, the second connecting parts 72 with N poles and the second connecting parts 72 with S poles are arranged alternately in the circumferential direction.

[0061] In the first connecting portion 72 and the second connecting portion 72 which are connected to each other, the magnetic pole of the first connecting portion 71 is different from the magnetic pole of the second connecting portion 72. In other words, the first connecting portion 71 of the N pole corresponds to the second connecting portion 72 of the S pole, and the first connecting portion 71 of the S pole corresponds to the second connecting portion 72 of the N pole.

[0062] 7 is a side view of the protective cap 90 showing a partial cross section of the protective cap 90. The protective cap 90 has a cap body 91 and a wearing body 92 attached to the inside of the cap body 91. The protective cap 90 further has a shock absorbing member 93 and a chin strap 94. Note that the shock absorbing member 93 and the chin strap 94 may be omitted.

[0063] The helmet body 91 is an outer shell of the protective helmet 90. The helmet body 91 covers the head 8 and can withstand external impacts. The material of the helmet body 91 is, for example, a resin such as ABS, PC, PE, or FRP.

[0064] The shock absorbing member 93 is fixed to the inner surface of the cap body 91. The shock absorbing member 93 absorbs external shocks. The material of the shock absorbing member 93 is, for example, polystyrene foam.

[0065] The wearing body 92 is fixed to the inner surface of the helmet body 91. The wearing body 92 holds the protective helmet 90 on the head 8 and improves the contact of the protective helmet 90 with the head 8 to absorb impact. The material of the wearing body 92 is, for example, resin or fiber.

[0066] The garment 92 includes a headband 92a, a loop string 92b, and a hammock 92c. The headband 92a is wrapped around the head 8. The headband 92a can be adjusted to fit the size of the head 8. The loop string 92b is disposed opposite the top of the head 83. The hammock 92c is hung between the headband 92a and the loop string 92b. The hammock 92c extends in the up-down direction. The garment 92 includes a plurality of hammocks 92c. The plurality of hammocks 92c are disposed around the head 8 at intervals.

[0067] The chin strap 94 is attached to a headband 92a of the wearing body 92. The chin strap 94 prevents the protective cap 90 from falling off the head 8. The material of the chin strap 94 is, for example, resin or fiber.

[0068] The protective cap 90 has a gap between the cap body 91 and the wearing body 92. Specifically, the gap exists between the impact absorbing member 93 and the wearing body 92. More specifically, the gap exists between the impact absorbing member 93 and the loop string 92b and the hammock 92c of the wearing body 92.

[0069] 8 is a cross-sectional view of a protective cap 90 in which a head cooling device 100 is installed. The first cooling device main body 1a is disposed between the cap body 91 and the wearing body 92. Specifically, the first cooling device main body 1a is inserted into the gap between the cap body 91 and the wearing body 92. More specifically, the first cooling device main body 1a is inserted into the gap between the impact absorbing member 93 and the loop string 92b and hammock 92c of the wearing body 92.

[0070] The second cooling device body 1b is connected to the first cooling device body 1a by the connector 7 in a state where the second cooling device body 1b is overlapped on the first cooling device body 1a so that the attachment 92 is sandwiched between the first cooling device body 1a and the second cooling device body 1b.

[0071] Specifically, the first cooling device main body 1a and the second cooling device main body 1b sandwich at least the loop string 92b of the loop string 92b and the hammock 92c. More specifically, the first portion 35a of the first cooling device main body 1a and the first portion 35b of the second cooling device main body 1b sandwich the loop string 92b. Each divided body 37a of the first cooling device main body 1a and each divided body 37b of the second cooling device main body 1b sandwich the hammock 92c, as described below.

[0072] Moreover, each divided body 37a of the first cooling device main body 1a and each divided body 37b of the second cooling device main body 1b are connected by a connector 7 in the space between adjacent hammocks 92c around the head 8. In detail, each storage section 32a of the divided body 37a of the first cooling device main body 1a and each storage section 32b of the divided body 37b of the second cooling device main body 1b are connected to each other by the connector 7.

[0073] Next, a method for installing the head cooling device 100 on the protective cap 90 will be described. Fig. 9 is a bottom view of the protective cap 90 on which the first cooling device main body 1a is installed. Fig. 10 is a bottom view of the protective cap 90 on which the first cooling device main body 1a and the second cooling device main body 1b are installed.

[0074] As shown in FIG. 9, the first cooling device main body 1a is folded and inserted from the space between adjacent hammocks 92c in the circumferential direction into the gap between the hat body 91 (in this example, the impact absorbing member 93) and the wearing body 92, so that the first cooling device main body 1a is positioned in the gap between the hat body 91 and the wearing body 92.

[0075] At this time, when viewed from the bottom surface of the protective cap 90, the first portion 35a of the first cooling device main body 1a is arranged so as to overlap the loop string 92b. Also, the notch 6a of the first cooling device main body 1a is arranged so as to overlap the hammock 92c, and the circumferential side edge portion of the divided body 37a of the first cooling device main body 1a is arranged so as to overlap the hammock 92c. Also, the first connecting portion 71 is arranged so as to overlap the space between the hammocks 92c adjacent in the circumferential direction.

[0076] Thereafter, as shown in FIG. 10, the second cooling device body 1b is placed on top of the first cooling device body 1a so that the first cooling device body 1a and the second cooling device body 1b sandwich the attachment body 92 with the second connecting portion 72 facing the first connecting portion 71, and the second connecting portion 72 is connected to the first connecting portion 71, thereby connecting the second cooling device body 1b to the first cooling device body 1a.

[0077] At this time, when viewed from the bottom surface of the protective cap 90, the first portion 35b of the second cooling device main body 1b is arranged so as to overlap the loop string 92b. Also, the notch 6b of the second cooling device main body 1b is arranged so as to overlap the hammock 92c, and the circumferential side edge portion of the divided body 37b of the second cooling device main body 1b is arranged so as to overlap the hammock 92c. The second connecting portion 72 is arranged so as to overlap the space between the hammocks 92c adjacent to each other in the circumferential direction.

[0078] In other words, when viewed from the bottom surface of the protective cap 90, the first portion 35b of the second cooling device main body 1b overlaps the first portion 35a of the first cooling device main body 1a. Also, each divided body 37b of the second cooling device main body 1b overlaps each divided body 37a of the first cooling device main body 1a. Also, the second connecting portion 72 overlaps the first connecting portion 71.

[0079] As a result, the first portion 35a of the first cooling device main body 1a and the first portion 35b of the second cooling device main body 1b hold the loop string 92b, and each divided body 37a of the first cooling device main body 1a and each divided body 37b of the second cooling device main body 1b hold the hammock 92c. The second connecting part 72 is connected to the first connecting part 71. Therefore, the head cooling device 100 can be attached to the wearing body 92.

[0080] According to the above-mentioned head cooling device 100, the first cooling device main body 1a and the second cooling device main body 1b are stacked so as to sandwich the wearing body 92, and the connector 7 connects the first cooling device main body 1a and the second cooling device main body 1b. As a result, the head cooling device 100 is attached to the wearing body 92 in a state in which the wearing body 92 is held in between. Therefore, the head cooling device 100 can be stably installed inside the protective cap 90.

[0081] In addition, since the first cooling device body 1a is disposed between the hat body 91 and the wearing body 92, the first cooling device body 1a can cool the air present in the gap between the hat body 91 and the wearing body 92. This allows the first cooling device body 1a to indirectly cool the head 8.

[0082] Moreover, since the second cooling device body 1b is disposed on the opposite side of the wearing body 92 to the first cooling device body 1a, the second cooling device body 1b can come into contact with the head 8. This allows the second cooling device body 1b to directly cool the head 8.

[0083] Furthermore, since the first cooling device main body 1a is positioned between the hat body 91 and the wearing body 92, the first cooling device main body 1a can be positioned in the dead space between the hat body 91 and the wearing body 92, and when the head cooling device 100 is installed on the protective hat 90, the cooling effect can be improved without substantially increasing the thickness of the head cooling device 100.

[0084] In addition, since the connector 7 is disposed between the first cooling device main body 1a and the second cooling device main body 1b, the connector 7 is unlikely to be exposed to the outside. As a result, when the head cooling device 100 is placed on the protective cap 90 and used, hair is unlikely to become entangled in the connector 7.

[0085] Furthermore, since the connector 7 includes a first connecting portion 71 provided on the first cooling device body 1a and a second connecting portion 72 provided on the second cooling device body 1b, the connector 7 can be held integrally with the first cooling device body 1a and the second cooling device body 1b. This makes it easy to manage the connector 7 because it does not separate from the first cooling device body 1a and the second cooling device body 1b when the first cooling device body 1a and the second cooling device body 1b are separated from each other.

[0086] Furthermore, since the first connecting portion 71 and the second connecting portion 72 are magnets, the first connecting portion 71 and the second connecting portion 72 are attracted to each other by magnetic force, making it easy to attach and detach the first cooling device main body 1a and the second cooling device main body 1b.

[0087] Specifically, the first cooling device body 1a and the second cooling device body 1b can be connected to each other without pressing the first cooling device body 1a and the second cooling device body 1b in the direction facing each other. In more detail, since the first cooling device body 1a is disposed between the cap body 91 and the wearing body 92, it is difficult to press the first cooling device body 1a toward the second cooling device body 1b, but since the first connecting portion 71 and the second connecting portion 72 are magnets, the first cooling device body 1a and the second cooling device body 1b can be connected to each other by simply bringing the second cooling device body 1b close to the first cooling device body 1a, without pressing the first cooling device body 1a toward the second cooling device body 1b.

[0088] In addition, since the first connecting portion 71 and the second connecting portion 72 are magnets, when the head cooling device 100 is attached to the protective helmet 90 and used, hair is less likely to become tangled in the first connecting portion 71 and the second connecting portion 72 than when the first connecting portion 71 and the second connecting portion 72 are hook-and-loop fasteners.

[0089] Furthermore, since the first connecting part 71 and the second connecting part 72 are magnets, when the head cooling device 100 is attached to the protective cap 90 and used, the magnetic field of the magnets promotes blood flow in the head 8. Specifically, the magnetic field of the magnets acts on the cells, nervous system, blood flow system, etc. of the head 8, and can regulate the biomagnetic field and bioelectric current.

[0090] In addition, since the first connecting portion 71 is disposed on each of the multiple divided bodies 37a of the second portion 36a of the first cooling device main body 1a, all of the divided bodies 37a of the second portion 36a of the first cooling device main body 1a can be connected to the second cooling device main body 1b, and the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected. Therefore, the head cooling device 100 can be stably installed inside the protective cap 90.

[0091] In addition, since the first connecting parts 71 are arranged corresponding to the plurality of storage parts 32a arranged in the divided body 37a, all the storage parts 32a of the divided body 37a of the first cooling device main body 1a can be connected to the second cooling device main body 1b, and the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected. Therefore, the head cooling device 100 can be stably installed inside the protective cap 90.

[0092] In addition, since the second connecting parts 72 are disposed on each of the multiple divisional bodies 37b of the second portion 36b of the second cooling device main body 1b, all of the divisional bodies 37b of the second portion 36b of the second cooling device main body 1b can be connected to the first cooling device main body 1a, and the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected. Therefore, the head cooling device 100 can be stably installed inside the protective cap 90.

[0093] In addition, since the second connecting parts 72 are arranged corresponding to the plurality of storage parts 32b arranged in the divided body 37b, all the storage parts 32b of the divided body 37b of the second cooling device main body 1b can be connected to the first cooling device main body 1a, and the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected. Therefore, the head cooling device 100 can be stably installed inside the protective cap 90.

[0094] Also, the magnetic poles of the second connecting parts 72 adjacent in the radial direction (diameter) of the second cooling device main body 1b are different. As a result, the magnetic forces of the second connecting parts 72 adjacent in the radial direction attract each other, and the magnetic force can be exerted over a wide range. In other words, since the second cooling device main body 1b contacts the head 8, the magnetic force of the second connecting parts 72 extends over a wide range, and blood flow in the head 8 is further promoted. In detail, the magnetic force of the second connecting parts 72 is emitted from the head 8 side of the second cooling device main body 1b, and thus the magnetic force can be exerted on the head 8. For example, the strength of one magnet is 2000 gauss, and this further promotes blood flow in the head 8.

[0095] In addition, the magnetic poles of the second connecting parts 72 adjacent in the circumferential direction of the second cooling device main body 1b are different. This allows the magnetic forces of the second connecting parts 72 adjacent in the circumferential direction to attract each other, and the magnetic force can be exerted over a wide area. In other words, since the second cooling device main body 1b comes into contact with the head 8, the magnetic force of the second connecting parts 72 extends over a wide area, further promoting blood flow in the head 8.

[0096] Also, the thickness t2 of the storage section 32b of the second cooling device main body 1b is smaller than the thickness t1 of the storage section 32a of the first cooling device main body 1a. This allows the thickness t2 of the storage section 32b of the second cooling device main body 1b to be reduced, and the thickness of the head cooling device 100 can be substantially reduced when the head cooling device 100 is installed in the protective cap 90. On the other hand, the thickness t1 of the storage section 32a of the first cooling device main body 1a can be increased, and the volume of the ice pack 2a stored in the storage section 32a can be increased. Therefore, the cooling effect of the air present in the gap between the cap body 91 and the wearing body 92 can be improved. At this time, since the first cooling device main body 1a is disposed in the dead space between the cap body 91 and the wearing body 92, even if the thickness t1 of the storage section 32a of the first cooling device main body 1a is increased, the substantial thickness of the head cooling device 100 when the head cooling device 100 is installed in the protective cap 90 does not increase. In this way, the effective thickness of the head cooling device 100 during use can be reduced, while the cooling performance of the head cooling device 100 can be improved.

[0097] Furthermore, since the melting point of the ice pack 2a in the first cooling device body 1a is different from the melting point of the ice pack 2b in the second cooling device body 1b, the first cooling device body 1a and the second cooling device body 1b can be adapted to the desired use.

[0098] In detail, since the melting point of the ice pack 2b in the second cooling device body 1b is lower than the melting point of the ice pack 2a in the first cooling device body 1a, the cooling device can be used in a state in which the solid phase ice pack 2a in the first cooling device body 1a and the liquid phase ice pack 2b in the second cooling device body 1b coexist.

[0099] In this case, the liquid-phase ice pack 2b enhances the cushioning properties of the second cooling device main body 1b. In other words, since the second cooling device main body 1b comes into contact with the head 8, the liquid-phase ice pack 2b with its high cushioning properties enhances the comfort of the head cooling device 100 during use.

[0100] On the other hand, if the ice pack 2a is in a solid phase while the ice pack 2b is in a liquid phase, the first cooling device main body 1a is positioned between the hat body 91 and the wearing body 92, so that the air present in the gap between the hat body 91 and the wearing body 92 can be quickly cooled using the solid-phase ice pack 2a, which has high thermal conductivity.

[0101] In this way, the coexistence of the solid-phase ice pack 2a with high cooling performance and the liquid-phase ice pack 2b with excellent cushioning properties makes it possible to achieve both cooling performance and cushioning properties.

[0102] Alternatively, the melting point of the ice pack 2b of the second cooling device body 1b may be higher than the melting point of the ice pack 2a of the first cooling device body 1a. In other words, the cooling device can be used in a state where the ice pack 2a of the first cooling device body 1a in liquid phase and the ice pack 2b of the second cooling device body 1b in solid phase coexist.

[0103] In this case, since the cooling agent 2a is in a liquid phase, the flexibility of the first cooling device main body 1a is improved, and the first cooling device main body 1a can be easily folded and inserted between the hat body 91 and the wearing body 92.

[0104] On the other hand, if ice pack 2b is in a solid phase while ice pack 2a is in a liquid phase, head 8 can be quickly cooled using ice pack 2b in a solid phase with high thermal conductivity. In other words, since second cooling device main body 1b contacts head 8, heat from head 8 can be quickly absorbed by ice pack 2b in a solid phase with high thermal conductivity.

[0105] In this way, by coexisting the liquid-phase ice pack 2a with excellent flexibility and the solid-phase ice pack 2b with high cooling performance, it is possible to achieve both flexibility and cooling performance.

[0106] Other Embodiments As described above, the above embodiment has been described as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this, and can be applied to embodiments in which modifications, replacements, additions, omissions, etc. are appropriately performed. In addition, it is also possible to combine the components described in the above embodiment to form a new embodiment. In addition, among the components described in the attached drawings and detailed description, not only components essential for solving the problem but also components that are not essential for solving the problem in order to exemplify the technology may be included. Therefore, the fact that these non-essential components are described in the attached drawings and detailed description should not immediately lead to the determination that these non-essential components are essential.

[0107] The connector 7 is disposed between the first cooling device body 1a and the second cooling device body 1b, but the connector 7 may be disposed on a surface other than the opposing surfaces of the first cooling device body 1a and the second cooling device body 1b. For example, when the connector 7 is a band, the connector 7 is wrapped around the outer peripheral surfaces other than the opposing surfaces of the first cooling device body 1a and the second cooling device body 1b to connect the first cooling device body 1a and the second cooling device body 1b.

[0108] The connector 7 includes the first connector 71 and the second connector 72, but may be an integral member. For example, the connector 7 may be a band that binds the first cooling device body 1a and the second cooling device body 1b, and the connector 7 may be separated from the first cooling device body 1a and the second cooling device body 1b when the first cooling device body 1a and the second cooling device body 1b are separated from each other.

[0109] The first connecting portion 71 and the second connecting portion 72 are magnets, but may also be snap buttons or hook-and-loop fasteners.

[0110] The first connecting portion 71 is disposed on each of the plurality of divided bodies 37a, but may be disposed on at least one of the divided bodies 37a.

[0111] The first connecting portion 71 is arranged to correspond to each of the multiple storage portions 32a arranged in the divided body 37a, but may also be arranged to correspond to at least one storage portion 32a arranged in the divided body 37a.

[0112] The second connecting portion 72 is disposed in each of the plurality of divided bodies 37b, but may be disposed in at least one of the divided bodies 37b.

[0113] The second connecting portion 72 is arranged to correspond to each of the multiple storage portions 32b arranged in each divided body 37b, but may be arranged to correspond to at least one storage portion 32b arranged in each divided body 37b.

[0114] The thickness t2 of the accommodating portion 32b of the second cooling device body 1b is smaller than the thickness t1 of the accommodating portion 32a of the first cooling device body 1a, but the thickness t2 may be greater than the thickness t1, or the thickness t2 may be the same as the thickness t1.

[0115] The magnetic poles of the first connecting portions 71 adjacent to each other in the radial direction (diameter) of the first cooling device main body 1a are different, and the magnetic poles of the second connecting portions 72 adjacent to each other in the radial direction (diameter) of the second cooling device main body 1b are different, but the magnetic poles of the first connecting portions 71 adjacent to each other in the radial direction of the first cooling device main body 1a may be the same, and the magnetic poles of the second connecting portions 72 adjacent to each other in the radial direction of the second cooling device main body 1b may be the same.

[0116] The magnetic poles of the first connecting portions 71 adjacent to each other in the circumferential direction of the first cooling device main body 1a are different, and the magnetic poles of the second connecting portions 72 adjacent to each other in the circumferential direction of the second cooling device main body 1b are different, but the magnetic poles of the first connecting portions 71 adjacent to each other in the circumferential direction of the first cooling device main body 1a may be the same, and the magnetic poles of the second connecting portions 72 adjacent to each other in the circumferential direction of the second cooling device main body 1b may be the same.

[0117] The melting point of the ice pack 2a in the first cooling device body 1a is different from the melting point of the ice pack 2b in the second cooling device body 1b, but may be the same.

[0118] In the first cooling device main body 1a, the second sheet 42a may not be flat, and may have a plurality of recesses formed thereon that are recessed in the opposite direction to the first sheet 41a. In this case, the partition portion 33a may be formed by joining a portion between adjacent recesses 411a of the first sheet 41a and a portion between adjacent recesses of the second sheet 42a.

[0119] In the second cooling device main body 1b, the first sheet 41b and the second sheet 42b have recesses 411b, 421b, respectively, but either the first sheet 41b or the second sheet 42b may be flat.

[0120] The shapes of the first cooling device body 1a and the second cooling device body 1b are not limited. The shapes of the first cooling device body 1a and the second cooling device body 1b may be polygonal, such as rectangular. The shapes, number and arrangement of the storage sections 32a and 32b are not limited.

[0121] The shape, number and arrangement of the notches 6 are not limited. The shape of the notches 6 may be polygonal or curved. The notches 6 may be linear. The number of notches 6 may be one, or two or more. The notches 6 may be arranged at any position on the outer circumferential edge 19 of the first cooling device main body 1a.

[0122] [Aspects] The above-described embodiment is a specific example of the following aspects.

[0123] (Aspect 1) The head cooling device 100 is installed inside a protective helmet 90 having a helmet body 91 and a wearing body 92 attached to the inside of the helmet body 91, and comprises a plate-shaped first cooling device main body 1a arranged between the helmet body 91 and the wearing body 92, a plate-shaped second cooling device main body 1b layered on the first cooling device main body 1a so as to sandwich the wearing body 92 together with the first cooling device main body 1a, and a connecting device 7 that detachably connects the second cooling device main body 1b to the first cooling device main body 1a.

[0124] According to this configuration, the head cooling device 100 can be stably installed inside the protective cap 90. Furthermore, the head 8 can be indirectly cooled by the first cooling device main body 1a. Furthermore, the head 8 can be directly cooled by the second cooling device main body 1b. Furthermore, when the head cooling device 100 is installed in the protective cap 90, the cooling effect can be improved without substantially increasing the thickness of the head cooling device 100.

[0125] (Aspect 2) In the head cooling device 100 according to the first aspect, The connector 7 is disposed between the first cooling device body 1a and the second cooling device body 1b.

[0126] According to this configuration, when the head cooling device 100 is attached to the protective cap 90 and used, hair is less likely to become entangled in the connector 7.

[0127] (Aspect 3) In the head cooling device 100 according to the first or second aspect, The connector 7 includes a first connecting portion 71 provided on the first cooling device main body 1a, and a second connecting portion 72 provided on the second cooling device main body 1b and detachably connected to the first connecting portion 71.

[0128] According to this configuration, when the first cooling device body 1a and the second cooling device body 1b are separated from each other, the connector 7 does not separate from the first cooling device body 1a and the second cooling device body 1b, making management easy.

[0129] (Aspect 4) In the head cooling device 100 according to any one of aspects 1 to 3, The first connecting portion 71 and the second connecting portion 72 are magnets.

[0130] According to this configuration, the first cooling device body 1a and the second cooling device body 1b can be easily attached and detached. Furthermore, when the head cooling device 100 is attached to the protective cap 90 and used, hair is less likely to become entangled in the first connecting part 71 and the second connecting part 72 than in the case of a hook-and-loop fastener.

[0131] (Aspect 5) In the head cooling device 100 according to any one of aspects 1 to 4, The first cooling device body 1a has a cooling agent 2a and an exterior pack 3a that contains the cooling agent 2a, The outer pack 3a includes a first portion 35a corresponding to a top portion 83 of the head of a human body, and a second portion 36a corresponding to a front portion 81, a back portion 82, and a side portion 84 of the head of a human body. The second portion 36a includes a plurality of division bodies 37a divided in the circumferential direction, The first connecting portion 71 is disposed on each of the plurality of divided bodies 37a.

[0132] According to this configuration, the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected, and the head cooling device 100 can be stably installed inside the protective cap 90.

[0133] (Aspect 6) In the head cooling device 100 according to any one of aspects 1 to 5, The second cooling device body 1b has a cooling agent 2b and an exterior pack 3b that contains the cooling agent 2b, The outer pack 3b includes a first portion 35b corresponding to a top portion 83 of the head of a human body, and a second portion 36b corresponding to a front portion 81, a back portion 82, and a side portion 84 of the head of a human body. The second portion 36b includes a plurality of division bodies 37b divided in the circumferential direction, The second connecting portion 72 is disposed on each of the plurality of divided bodies 37b.

[0134] According to this configuration, the first cooling device main body 1a and the second cooling device main body 1b can be firmly connected, and the head cooling device 100 can be stably installed inside the protective cap 90.

[0135] (Aspect 7) In the head cooling device 100 according to any one of the first to sixth aspects, The second connecting portions 72 are arranged radially from the center of the second cooling device main body 1b, and the magnetic poles of the second connecting portions 72 adjacent to each other in the radial direction are different.

[0136] According to this configuration, the magnetic poles of the second connecting portion 72 are alternately arranged, so that the magnetic force of the second connecting portion 72 covers a wide area, thereby further promoting blood flow in the head 8.

[0137] (Aspect 8) In the head cooling device 100 according to any one of aspects 1 to 7, The first cooling device main body 1a and the second cooling device main body 1b each have a cooling agent 2a, 2b and an exterior pack 3a, 3b including a plurality of storage sections 32a, 32b that individually store the cooling agents 2a, 2b, A thickness t2 of the receiving portion 32b of the second cooling device body 1b is smaller than a thickness t1 of the receiving portion 32a of the first cooling device body 1a.

[0138] According to this configuration, the effective thickness of the head cooling device 100 during use can be reduced, while the cooling performance of the head cooling device 100 can be improved.

[0139] (Aspect 9) In the head cooling device 100 according to any one of aspects 1 to 8, The first cooling device body 1a and the second cooling device body 1b each have a cooling agent 2a, 2b and an outer pack 3a, 3b for accommodating the cooling agent 2a, 2b, The melting point of the ice pack 2a in the first cooling tool body 1a is different from the melting point of the ice pack 2b in the second cooling tool body 1b.

[0140] According to this configuration, the first cooling tool body 1a and the second cooling tool body 1b can be adapted to a desired application. [Explanation of symbols]

[0141] 1a,1b 1st and 2nd cooling device bodies 2a, 2b Ice packs 3a, 3b Exterior Packs 6a,6b Cutting 7 Connectors 32a, 32b Storage section 35a,35b 1st part 36a,36b 2nd part 37a,37b split body 71 1st connection part 72 2nd connection part 81 Frontal region 82 Back of the Head 83 Top of the Head 84 Temporal head 90 Hard hat 91 Hat body 92 Wearing body 100 Head cooler t1 Thickness of the housing part of the first cooling device body t2 Thickness of the housing part of the second cooling device body

Claims

1. A head cooling device to be installed inside a protective helmet having a helmet body and a wearing body attached to the inside of the helmet body, A plate-shaped first cooling device body arranged between the hat body and the wearing body; a plate-shaped second cooling device body that is overlapped on the first cooling device body so as to sandwich the wearing body together with the first cooling device body; A head cooling device comprising: a connector for detachably connecting the second cooling device body to the first cooling device body.

2. The head cooling device according to claim 1, The connector is disposed between the first cooling device body and the second cooling device body.

3. The head cooling device according to claim 2, The head cooling device includes a first connecting portion provided on the first cooling device main body and a second connecting portion provided on the second cooling device main body and detachably connected to the first connecting portion.

4. The head cooling device according to claim 3, The head cooling device, wherein the first connecting portion and the second connecting portion are magnets.

5. The head cooling device according to claim 3, The first cooling device body has a cooling agent and an exterior pack that contains the cooling agent, The outer pack includes a first portion corresponding to a top of a head of a human body, and a second portion corresponding to a front portion, a back portion, and a side portion of a head of a human body, The second portion includes a plurality of division bodies divided in a circumferential direction, The first connecting portion is disposed on each of the plurality of divided bodies.

6. The head cooling device according to claim 3, The second cooling device body has a cooling agent and an exterior pack that contains the cooling agent, The outer pack includes a first portion corresponding to a top of a head of a human body, and a second portion corresponding to a front portion, a back portion, and a side portion of a head of a human body, The second portion includes a plurality of division bodies divided in a circumferential direction, The second connecting portion is disposed on each of the plurality of divided bodies.

7. The head cooling device according to claim 4, The second connecting portions are arranged radially from the center of the second cooling device body, and the magnetic poles of the second connecting portions adjacent in the radial direction are different.

8. The head cooling device according to claim 1, Each of the first cooling device body and the second cooling device body has a cooling agent and an exterior pack including a plurality of storage sections that individually store the cooling agent, A head cooling device, wherein the thickness of the housing portion of the second cooling device body is smaller than the thickness of the housing portion of the first cooling device body.

9. The head cooling device according to claim 1, The first cooling device body and the second cooling device body each have a cooling agent and an exterior pack that contains the cooling agent, A head cooling device in which the melting point of the ice pack in the first cooling device body is different from the melting point of the ice pack in the second cooling device body.

Images