Cranial reshape correction helmet and method for manufacturing a cranial reshape correction helmet

Abstract

To provide a skull-shape correcting helmet 1 that suppresses stuffiness caused by sweat from the head. [Solution] A skull-shaping helmet 1, which is worn on the head to correct skull deformation, comprises a shell 2 and an inner liner 3 positioned on the inner side of the shell 2 and in contact with the head. The inner liner 3 has an outer layer 33 positioned on the inner side of the shell 2, an inner layer 35 that contacts the head, and a cushion layer 34 positioned between the outer layer 33 and the inner layer 35. The cushion layer 34 has cushioning properties, the inner layer 35 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34, and the outer layer 33 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34.

Description

Technical Field

[0001] The present invention relates to a cranial shape correction helmet worn on the head to correct cranial deformation and a method for manufacturing the cranial shape correction helmet.

Background Art

[0002] In infants and young children, cranial deformations that require treatment, such as plagiocephaly, brachycephaly, and dolichocephaly, may occur. Plagiocephaly is a deformed shape in which the skull is not symmetric left and right but is tilted to one side. Brachycephaly is a deformed shape in which the anteroposterior dimension of the skull is significantly short. Dolichocephaly is a deformed shape in which the anteroposterior dimension of the skull is significantly long. As a device for treating such cranial deformations, a cranial shape correction helmet that promotes deformation so that the shape of the skull is corrected as the skull grows by covering the head is disclosed in Patent Document 1 below.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Patent Document 1 discloses a cranial deformation correction helmet including an outer shell made of a non-foamed synthetic resin and an inner liner made of a foamed synthetic resin disposed on the inner surface of the shell. However, when the inner liner is composed only of a foamed synthetic resin layer, it is difficult to suppress sweating from the head while appropriately holding the cranial shape correction helmet against the head. Therefore, there has been a demand for a cranial shape correction helmet that can provide a better wearing state.

[0005] An object of the present invention is to provide a cranial shape correction helmet that can provide a good wearing state.

Means for Solving the Problems

[0006] (1) A cranial reshaping helmet, which is placed on the head to correct cranial deformation, comprises a shell and an inner liner positioned on the inner side of the shell and in contact with the head, wherein the inner liner has an outer layer positioned on the inner side of the shell, an inner layer in contact with the head, and a cushioning layer positioned between the outer layer and the inner layer, wherein the cushioning layer has cushioning properties, the inner layer is made of a material with higher water absorption and / or quick-drying properties than the cushioning layer, and the outer layer is made of a material with higher water absorption and / or quick-drying properties than the cushioning layer.

[0007] (2) In the skull shape correcting helmet of (1), the cushion layer has 20 or more through holes.

[0008] (3) In the skull shape correcting helmet of (1), the inner layer has higher breathability than the cushioning layer.

[0009] (4) In the skull shape correcting helmet of (1), the outer layer has higher quick-drying properties than the inner layer.

[0010] (5) In the skull shape correcting helmet of (1), the density of the cushioning layer is higher than the density of the inner layer and the density of the outer layer.

[0011] (6) In the skull shape correction helmet of (1), the cushion layer is made of foamed resin.

[0012] (7) In the skull shape correction helmet of (1), the outer layer is made of synthetic fiber.

[0013] In the skull-shaping helmet of (8)(7), the synthetic fiber constituting the outer layer is polyester fiber.

[0014] (9) In the skull shape correcting helmet of (1), hook-and-loop fasteners are placed on the shell side, and the outer layer has a napped structure facing the shell.

[0015] (10) In the cranial shape correction helmet of (1), the inner layer contains synthetic fibers or / and cotton.

Advantages of the Invention

[0016] The present invention provides a cranial shape correction helmet that can achieve a good wearing state.

Brief Description of the Drawings

[0017] [Figure 1] It is a perspective view when the cranial shape correction helmet according to an embodiment of the present invention is viewed obliquely from the front. [Figure 2] In the cranial shape correction helmet of FIG. 1, it is a perspective view when the inner liner is viewed virtually through the shell. [Figure 3] It is a perspective view of an inner liner deployed in a planar shape according to an embodiment of the present invention. [Figure 4] It is a cross-sectional view of an inner liner having a through-hole according to an embodiment of the present invention. [Figure 5] It is a cross-sectional view of a cranial shape correction helmet in a state where an inner liner is attached to a shell according to an embodiment of the present invention. [Figure 6] It is a cross-sectional view of an inner liner having no through-hole according to an embodiment of the present invention.

Modes for Carrying Out the Invention

[0018] Hereinafter, the cranial shape correction helmet 1 according to Embodiment 1 of the present invention will be described with reference to the drawings.

[0019] (Embodiment 1) FIG. 1 is a perspective view showing a state in which a user 100 as a treatment target wears the cranial shape correction helmet 1 according to an embodiment of the present invention. The cranial shape correction helmet 1 includes a shell 2 and an inner liner 3.

[0020] The shell 2 constitutes the outer shape of the cranial orthosis helmet 1. The shell 2 is provided with shell ventilation holes 21. The shell ventilation holes 21 dissipate sweat from the head when an infant as the treatment target always wears the cranial orthosis helmet 1. As shown in FIG. 1, it is preferable that a large number of shell ventilation holes 21 are provided. On the inner surface of the shell 2, a surface fastener (not shown) for fixing the inner liner 3 is provided.

[0021] The inner liner 3 is disposed on the inner surface of the shell 2 and contacts the head of the user 100. The inner liner 3 is overlapped with the shell 2. The inner liner 3 functions to alleviate damage to the scalp that occurs when the hard shell 2 of the cranial bone to be corrected is directly pressed against it. The inner liner 3 has a plurality of inner liner ventilation holes 31. The plurality of inner liner ventilation holes 31 may be provided at equal intervals vertically and horizontally. The inner liner ventilation holes 31 may have an aperture diameter of, for example, 1 mm or more and 4 mm or less, and may have an aperture diameter smaller than that of the shell ventilation holes 21. The inner liner ventilation holes 31 have an aperture diameter of about 2 mm, for example. The inner liner 3 is detachably attached to the inner surface of the shell 2 via, for example, a surface fastener.

[0022] FIG. 2 is a perspective view when the inner liner 3 is viewed virtually through the shell 2, and particularly, as shown in FIG. 1, it is a perspective view of the three-dimensional shape of the inner liner 3 when it is overlapped with the shell 2 and worn on the user 100. The inner liner 3 has a plurality of cuts 32. FIG. 3 is a perspective view of a mode in which the inner liner 3 is developed two-dimensionally based on the plurality of cuts 32. The inner liner 3 can be developed in a substantially planar shape. In FIG. 3, the notation of the inner liner ventilation holes 31 is omitted. The inner liner 3 is a plate-shaped cushion cut according to the shape of the shell 2. The thickness of the inner liner 3 is from 1 mm to 10 mm. The thickness of the inner liner 3 is preferably 1.5 mm to 4 mm.

[0023] Figure 4 is a cross-sectional view of the inner liner 3. The inner liner 3 comprises at least three layers. The inner liner 3 includes an outer layer 33 positioned on the inner surface side of the shell 2, an inner layer 35 that contacts the head of the user 100, and a cushion layer 34 located between the outer layer 33 and the inner layer 35.

[0024] The outer layer 33, cushion layer 34, and inner layer 35 will be described in detail below. (outer layer)

[0025] The outer layer 33 is made of, for example, synthetic fibers. The synthetic fibers constituting the outer layer 33 are preferably, for example, polyester fibers, which are highly absorbent and quick-drying materials. The outer layer 33 may also be a knitted fabric made of synthetic fibers.

[0026] The outer layer 33 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34. Preferably, the outer layer 33 has higher water absorption than the cushion layer 34. Water absorption is evaluated, for example, by the dropping method of JIS L 1907:2010. Preferably, the outer layer 33 has higher quick-drying properties than the cushion layer 34. The outer layer 33 may have higher quick-drying properties than the inner layer 35. Quick-drying properties are evaluated by the diffusive residual moisture content test. Preferably, the outer layer 33 has higher water absorption and quick-drying properties than the cushion layer 34. Water absorption and quick-drying properties are evaluated, for example, by the A1 method of ISO 17617:2014.

[0027] The outer layer 33 preferably has a higher moisture permeability than the cushion layer 34. The outer layer 33 preferably has a higher moisture permeability than the inner layer 35. Moisture permeability is measured, for example, according to JIS L 1099:2021.

[0028] The outer layer 33 is preferably thinner than the cushion layer 34. This allows the inner liner 3 to have functionality such as head retention, pressure distribution, and water absorption and quick drying, while suppressing an increase in the overall thickness of the inner liner.

[0029] The outer layer 33 includes a napped material. More specifically, the outer layer 33 has a napped structure on the shell-facing side. The surface of the outer layer 33 is fixed to a hook-and-loop fastener provided on the shell 2. By fixing the outer layer 33 to the shell 2, the inner liner 3 is fixed to the shell 2.

[0030] As described above, the outer layer 33 is preferably composed of a fiber layer containing synthetic fibers, and more preferably composed of a fiber layer containing a napped structure.

[0031] The outer layer 33 has 20 or more, preferably 200 or more, ventilation holes corresponding to the inner liner ventilation holes 31. It is preferable that there are 0.3 or more holes per cm² with a diameter of 4 mm or less.

[0032] (Cushioning layer) Because the cushion layer 34 is constantly subjected to pressure from the skull and remains in a concave state, its shape is easily altered, meaning it is prone to sagging. Taking this into consideration, the cushion layer 34 is constructed from a material that is resistant to sagging.

[0033] The cushion layer 34 is, for example, a low-rebound cushion. The cushion layer 34 is made of a synthetic foamed resin, for example, low-rebound polyurethane foam.

[0034] The density of the cushion layer 34 is higher than that of the inner layer 35 and the outer layer 33. The density of the cushion layer 34 is 80 kg / m 3 It is preferable that the density is as described above. The density of the cushion layer 34 is measured, for example, according to JIS K 6401:2011.

[0035] While sponge-like, highly breathable polyurethane foam exists, such foams are too soft, resulting in poor head support. To maintain some cushioning while ensuring head support, the density of the polyurethane foam needs to be increased to make it harder. However, increasing the density of the polyurethane foam reduces breathability. To address this, fine pores are provided throughout the cushioning layer 34 or inner liner 3. This ensures good breathability in the cranial shape correction helmet 1. Furthermore, it is preferable that the cushioning layer 34 is also treated with an antibacterial coating.

[0036] The cushion layer 34 has 20 or more, preferably 200 or more, ventilation holes corresponding to the inner liner ventilation holes 31. There are 0.3 holes / cm² with a diameter of 4 mm or less. 2 It is preferable that the gap be larger than the specified size.

[0037] (inner layer) The inner layer 35 contains synthetic fibers and / or cotton. The inner layer 35 may have at least one of the following fibers: cotton, silk, wool, polyester, or rayon. Preferably, the inner layer 35 is composed of a cotton-containing fiber layer that has high water absorption and quick-drying properties. The inner layer 35 may have, in order from the inner side, a first layer containing cotton and a second layer containing synthetic fibers. The first layer may be a knitted fabric made of cotton, and the second layer may be a knitted fabric made of synthetic fibers. The first layer may be a tricot fabric made of cotton, and the second layer may be a tricot fabric made of synthetic fibers. Since the inner layer 35 comes into contact with the scalp of the skull, it is required to be gentle on the skin. For this reason, it is preferable that the layer containing cotton be the first layer. On the other hand, quick-drying properties are required in order to release the absorbed sweat moisture to the outside of the skull-shaping helmet 1. The second layer is made of synthetic fibers, which also provides quick-drying properties to the inner layer 35. Polyester fibers are preferred as the synthetic fibers.

[0038] The inner layer 35 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34. Preferably, the inner layer 35 has higher water absorption than the cushion layer 34. Water absorption is measured, for example, by the drop method of JIS L 1907:2010. Preferably, the inner layer 35 has higher quick-drying properties than the cushion layer 34. Quick-drying properties are measured by the diffusive residual moisture content test. Preferably, the inner layer 35 has higher water absorption and quick-drying properties than the cushion layer 34. Water absorption and quick-drying properties are measured, for example, by the A1 method of ISO 17617:2014.

[0039] The inner layer 35 preferably has a higher moisture permeability than the cushion layer 34. Moisture permeability is measured, for example, according to JIS L 1099:2021.

[0040] The inner layer 35 is preferably thinner than the cushion layer 34. This allows the inner liner 3 to have functionality such as head retention, pressure distribution, and water absorption and quick drying, while suppressing an increase in the overall thickness of the inner liner.

[0041] The outer layer 33 has 20 or more, preferably 200 or more, ventilation holes corresponding to the inner liner ventilation holes 31. It is preferable that there are 0.3 or more holes per cm² with a diameter of 4 mm or less.

[0042] The inner layer 35 has a higher antibacterial activity value than the cushion layer 34. This allows for effective antibacterial action. Antibacterial activity can be evaluated, for example, based on the JIS L 1902 / JIS K 6400-9 standard.

[0043] (Inner liner) Regarding the inner liner 3, the relationship between the outer layer 33, cushion layer 34, and inner layer 35 that constitute the inner liner 3 will be described in detail.

[0044] The inner liner 3 includes a heat-seal joint that joins the cushion layer 34 and the outer layer 33, and a heat-seal joint that joins the cushion layer 34 and the inner layer 35. There are several methods for bonding the three layers. The heat-seal (hot melt) method is preferred because it has high adhesion (difficult to peel off) and provides a uniform thickness.

[0045] The inner layer 35, which comes into direct contact with the skin, is made of a material that is water-absorbing, quick-drying, and has antibacterial and deodorizing properties. For example, clothing material is preferred. The cushion layer 34 is made of a material that distributes pressure, such as low-rebound polyurethane foam. The cushion layer 34 also has the functionality to absorb and diffuse sweat. The mechanism for preventing stuffiness is as follows, for example: Sweat from the skull is absorbed or soaked up by the inner layer 35. The sweat evaporates from the inner layer 35, passes through the cushion layer vents 34a, and is guided to the outer layer 33. Because the outer layer 33 is quick-drying, the sweat is diffused and evaporated, and evaporates from the shell vents 21 of the shell 2.

[0046] The urethane foam used in the cushion layer 34 is inherently susceptible to hydrolysis and therefore vulnerable to water. However, because the outer layer 33 and inner layer 35 are made of quick-drying material, even if moisture such as sweat adheres to them, it quickly diffuses and dries, minimizing the impact on the urethane foam. For the same reason, the inner liner 3 can be washed and reused. After 200 washing tests, no significant deterioration such as peeling or damage was observed.

[0047] In relation to the inner liner 3 and the shell 2, in addition to the effect of preventing stuffiness, it is also important that the inner liner 3 is easy to remove and wash, and that it is gentle on the user's skin. If only this effect is to be emphasized, the cranial shape correction helmet 1, which is worn on the head to correct cranial deformation, comprises a shell 2 and an inner liner 3 that is positioned on the inner side of the shell 2 and in contact with the head, and the inner liner 3 has an outer layer 33 positioned on the inner side of the shell 2, an inner layer 35 that is in contact with the head, and a cushion layer 34 positioned between the outer layer 33 and the inner layer 35, the cushion layer 34 has cushioning properties, the shell 2 has hook and loop fasteners, the outer layer 33 has a brushed surface, and the inner layer 35 preferably has a skin-friendly material, such as cotton, which is a non-allergenic material.

[0048] Figure 5 is a cross-sectional view of the inner liner 3 superimposed on the shell 2. In Figure 5, as shown as shell vents 21 and inner liner vents 31, it is preferable that the positions of the shell vents 21 of the shell 2 and the inner liner vents 31 of the inner liner 3 coincide. This increases the efficiency of sweat evaporation from the cranial epidermis. However, the positions of the shell vents 21 of the shell 2 and the inner liner vents 31 of the inner liner 3 do not necessarily coincide. Even in this case, sweat generated from the entire scalp is absorbed by the highly absorbent and quick-drying inner layer 35, and that moisture is diffused and released through the highly absorbent and quick-drying inner layer 35, the cushion layer vents 34a of the cushion layer 34, the highly absorbent and quick-drying outer layer 33, and the shell vents 21 of the shell 2.

[0049] As described above, the skull shape correcting helmet 1 of this embodiment comprises a shell 2 and an inner liner 3 disposed on the inner side of the shell 2 and in contact with the head. The inner liner 3 comprises a cushion layer 34, an inner layer 35 disposed on the inner side of the cushion layer 34, and an outer layer 33 disposed on the outer side of the cushion layer 34. Multiple ventilation holes are formed in the cushion layer 34, the inner layer 35 has higher water absorption and quick drying properties than the cushion layer 34, and the outer layer 33 has higher water absorption and quick drying properties than the cushion layer 34.

[0050] This makes it possible to provide a skull-shaping helmet 1 that provides a good fit. More specifically, it is possible to properly hold the skull-shaping helmet 1 on the head while suppressing stuffiness caused by sweat from the head. Sweat generated from the entire scalp is absorbed by the highly absorbent and quick-drying inner layer 35, and this moisture is diffused and released through the highly absorbent and quick-drying inner layer 35, the cushion layer ventilation holes 34a of the cushion layer 34, the highly absorbent and quick-drying outer layer 33, and the shell ventilation holes 21 of the shell 2. Furthermore, the presence of the cushion layer 34 between the inner layer 35 and the outer layer 33 appropriately distributes the pressure, and the skull-shaping helmet 1 is properly held on the head.

[0051] Furthermore, the skull shape correction helmet 1 of this embodiment comprises a shell 2 and an inner liner 3 disposed on the inner side of the shell 2 and in contact with the head. The inner liner 3 comprises a cushion layer 34, an inner layer 35 disposed on the inner side of the cushion layer 34, and an outer layer 33 disposed on the outer side of the cushion layer 34. The cushion layer 34 is made of foamed resin, and the inner layer 35 and outer layer 33 are made of fiber layers.

[0052] This makes it possible to provide a skull-shaping helmet 1 that provides a good fit. More specifically, it is possible to properly hold the skull-shaping helmet 1 on the head while suppressing stuffiness caused by sweat from the head. Sweat generated from the entire scalp is absorbed by the inner layer 35, which is made of fiber layers, and this moisture is diffused and released through the inner layer 35, which is made of fiber layers, the cushion layer ventilation holes 34a of the cushion layer 34, the outer layer 33, which is made of fiber layers, and the shell ventilation holes 21 of the shell 2. Furthermore, the presence of the cushion layer 34 between the inner layer 35 and the outer layer 33 appropriately distributes the pressure, and the skull-shaping helmet 1 is properly held on the head.

[0053] Furthermore, the skull shape correction helmet 1 of this embodiment comprises a shell 2 and an inner liner 3 disposed on the inner side of the shell 2 and in contact with the head. The inner liner 3 comprises a cushion layer 34, an inner layer 35 disposed on the inner side of the cushion layer 34, and an outer layer 33 disposed on the outer side of the cushion layer 34. The cushion layer 34 is made of foamed resin, the inner layer 35 is made of a fiber layer containing cotton, and the outer layer 33 is made of a fiber layer containing synthetic fibers.

[0054] This makes it possible to provide a skull-shaping helmet 1 that provides a good fit. Since the inner layer 35 that comes into contact with the head is made of a fiber layer containing cotton, the skull-shaping helmet 1 of this embodiment is gentle on the scalp of the user 100, even when worn by a user 100 such as an infant. Furthermore, since the outer layer 33 is made of a fiber layer containing synthetic fibers, it can effectively diffuse and release the sweat of the user 100. In addition, the presence of a cushion layer 34 between the inner layer 35 and the outer layer 33 appropriately distributes pressure, and the skull-shaping helmet 1 is properly held against the head.

[0055] Furthermore, the skull shape correcting helmet 1 of this embodiment comprises a shell 2 with hook-and-loop fasteners on its inner surface, and an inner liner 3 positioned on the inner side of the shell 2 and in contact with the head. The inner liner 3 comprises a cushion layer 34, an inner layer 35 positioned on the inner side of the cushion layer 34, and an outer layer 33 positioned on the outer side of the cushion layer 34. The cushion layer 34 is made of foamed resin, the inner layer 35 is made of a fiber layer, and the outer layer 33 is made of a fiber layer including a napped structure.

[0056] This makes it possible to provide a cranial shape correction helmet 1 that provides a good fit. Since the outer layer 33, which is positioned on the inner side of the shell 2, is made of a fiber layer including a napped structure, the inner liner 3 can be easily attached to and detached from the shell 2. Therefore, the inner liner 3 can be washed at the appropriate time, and the user 100 can wear the cranial shape correction helmet 1 with a clean inner liner 3 attached. In addition, there is no need to provide hook-and-loop fasteners on the inner liner 3 side, and the problem of misalignment between the pair of hook-and-loop fasteners does not occur. Furthermore, the presence of a cushion layer 34 between the inner layer 35 and the outer layer 33 distributes pressure appropriately, and the cranial shape correction helmet 1 is properly held against the head.

[0057] For example, if the inner liner 3 is made of a single layer of foamed resin such as urethane foam, the density of the foamed resin needs to be increased to a certain extent to make it rigid in order to properly hold the cranial shape correction helmet 1 against the head. However, increasing the density of the foamed resin reduces breathability, making it easier for sweat to cause stuffiness. On the other hand, lowering the density of the foamed resin improves breathability, but reduces pressure distribution, making it difficult to properly hold the cranial shape correction helmet 1 against the head.

[0058] As shown in Figure 4, it is preferable that the inner liner 3 is provided with multiple (numerous) through-holes, which are inner liner ventilation holes 31, penetrating the inner liner 3. According to the configuration of this embodiment, it is possible to ensure pressure distribution of the cushion layer 34 while securing passages for the diffusion and release of sweat from the head, thereby properly holding the skull-shaping helmet 1 to the head and suppressing stuffiness caused by sweat from the head. Furthermore, it is possible to provide a skull-shaping helmet 1 that is gentle on the scalp of users 100 such as infants, and also to provide a skull-shaping helmet 1 in which the inner liner 3 can be easily attached and detached.

[0059] As shown in Figure 4, it is preferable that the positions of the ventilation holes in the outer layer 33, cushion layer 34, and inner layer 35 coincide. However, as shown in Figure 6, it is also possible to have a configuration in which the outer layer 33, cushion layer 34, and inner layer 35 each have outer layer ventilation holes 33a, cushion layer ventilation holes 34a, and inner layer ventilation holes 35a, respectively, and their positions do not coincide. Sweat absorbed by the inner layer 35 reaches the outer layer 33 through the cushion layer ventilation holes 34a and evaporates from the shell ventilation holes 21 of the shell 2.

[0060] This disclosure allows for various embodiments and modifications without departing from the broad spirit and scope of the present invention. Furthermore, the embodiments described above are for illustrative purposes only and do not limit the scope of the present invention. That is, the scope of the present invention is indicated by the claims, not by the embodiments. Various modifications made within the scope of the claims and the equivalent significance of the disclosure are considered to be within the scope of the present invention.

[0061] The skull shape correcting helmet 1 according to the embodiment described above provides the following effects.

[0062] (1) A cranial shape correction helmet 1, which is placed on the head to correct cranial deformation, comprises a shell 2 and an inner liner 3 positioned on the inner side of the shell 2 and in contact with the head, wherein the inner liner 3 has an outer layer 33 positioned on the inner side of the shell 2, an inner layer 35 that contacts the head, and a cushion layer 34 positioned between the outer layer 33 and the inner layer 35, wherein the cushion layer 34 has cushioning properties, the inner layer 35 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34, and the outer layer 33 is made of a material with higher water absorption and / or quick-drying properties than the cushion layer 34.

[0063] This makes it possible to provide a skull-shape correction helmet 1 that provides a good fit. For example, it is possible to provide a skull-shape correction helmet 1 that suppresses stuffiness caused by sweat from the head. Sweat generated from the entire scalp can be diffused and released through the inner layer 35, cushion layer 34, outer layer 33, and shell ventilation holes 21 of the shell 2. If both the inner layer 35 and the outer layer 33 have good water absorption, sweat is well absorbed by the inner layer 35 and then absorbed by the outer layer 33 through the holes in the cushion layer 34. Because the outer layer 33 has good water absorption, sweat absorbed by the inner layer 35 is easily transferred to the outer layer 33. If the inner layer 35 has good water absorption and the outer layer 33 dries quickly, the humidity of the outer layer 33 is expected to be low, and evaporation of moisture from the inner layer 35 to the outer layer 33 is easily promoted. If the inner layer 35 has high quick-drying properties and the outer layer 33 has high water absorption properties, moisture will accumulate in the outer layer 33 rather than the inner layer 35, resulting in a dry inner layer 35. If both the inner layer 35 and the outer layer 33 have quick-drying properties, sweat will mainly evaporate in the form of vapor from the inner layer 35 through the cushion layer 34, through the outer layer 33, and out through the pores of the shell 2. If both water absorption and quick-drying properties are present, sweat will evaporate in a manner that is an appropriate combination of the four methods described above.

[0064] (2) In the skull shape correcting helmet 1 of (1), the cushion layer 34 has 20 or more, preferably 200 or more through holes.

[0065] This allows sweat from the head to pass through the cushion layer 34 and be guided to the outer layer 33.

[0066] (3) In the skull shape correcting helmet 1 of (1), the inner layer 35 has higher moisture permeability than the cushion layer 34.

[0067] This allows sweat from the head to be guided from the inner layer 35 to the cushion layer ventilation holes 34a of the cushion layer 34.

[0068] (4) In the skull shape correcting helmet 1 of (1), the outer layer 33 has higher quick-drying properties than the inner layer 35.

[0069] This allows sweat released from the cushion layer ventilation holes 34a of the cushion layer 34 to dry quickly.

[0070] (5) In the skull shape correcting helmet 1 of (1), the density of the cushion layer 34 is higher than the density of the inner layer 35 and the density of the outer layer 33.

[0071] As a result, the cushion layer 34 can always be partially compressed during the cranial correction function of the cranial shape correction helmet 1, thereby distributing the pressure from the shell 2 and contributing to cranial correction.

[0072] (6) In the skull shape correction helmet 1 of (1), the cushion layer 34 is made of foamed resin.

[0073] As a result, the cushion layer 34 can always be partially compressed during the cranial correction function of the cranial shape correction helmet 1, thereby distributing the pressure from the shell 2 and contributing to cranial correction.

[0074] (7) In the skull shape correction helmet 1 of (1), the outer layer 33 is made of synthetic fiber.

[0075] This allows sweat released from the cushion layer ventilation holes 34a of the cushion layer 34 to dry quickly.

[0076] In the skull shape correction helmet 1 of (8)(7), the synthetic fiber constituting the outer layer 33 is polyester fiber.

[0077] This allows sweat released from the cushion layer ventilation holes 34a of the cushion layer 34 to dry quickly.

[0078] (9) In the skull shape correcting helmet 1 of (1), hook-and-loop fasteners are placed on the surface facing the shell 2, and the outer layer 33 has a napped structure facing the shell 2.

[0079] This allows the napped structure to be fixed to the hook-and-loop fastener, and the outer layer 33 to be fixed to the shell 2. The inner liner 3 can be fixed to the shell 2 in a detachable manner.

[0080] (10) In the skull shape correcting helmet 1 of (1), the inner layer 35 includes synthetic fibers and / or cotton.

[0081] This results in a skin-friendly inner layer 35. In particular, when the inner layer 35 is made of 100% cotton, allergic reactions can be suppressed. [Explanation of Symbols]

[0082] 1. Skull reshaping helmet 2 Shells 21 Shell vents 3 Inner liner 31 Inner liner ventilation holes 32 cuts 33 Outer layer 33a Outer layer ventilation holes 34 Cushion layer 34a Cushion layer ventilation holes 35 Inner layer 35a Inner layer ventilation holes 100 users

Claims

1. A skull-shaping helmet that is worn on the head to correct skull deformities, Shell and, The shell comprises an inner liner positioned on the inner surface side and in contact with the head, The inner liner comprises an outer layer positioned on the inner surface side of the shell, an inner layer that contacts the head, and a cushion layer located between the outer layer and the inner layer. The cushion layer has cushioning properties, The inner layer is made of a material that has higher water absorption and / or quick-drying properties than the cushion layer. The outer layer is made of a material that has higher water absorption and / or quick-drying properties than the cushion layer. Skull reshaping helmet.

2. The cushion layer has 20 or more through holes. The skull shape correcting helmet according to claim 1.

3. The inner layer has higher moisture permeability than the cushion layer. The skull shape correcting helmet according to claim 1.

4. The outer layer has higher quick-drying properties than the inner layer. The skull shape correcting helmet according to claim 1.

5. The density of the cushion layer is higher than the density of the inner layer and the density of the outer layer. The skull shape correcting helmet according to claim 1.

6. The cushion layer is made of foamed resin. The skull shape correcting helmet according to claim 1.

7. The outer layer is made of synthetic fibers. The skull shape correcting helmet according to claim 1.

8. The synthetic fibers constituting the outer layer are polyester fibers. The skull shape correcting helmet according to claim 7.

9. A hook-and-loop fastener is placed on the inner surface of the shell, and the outer layer has a napped structure on the surface facing the shell. The skull shape correcting helmet according to claim 1.

10. The inner layer includes synthetic fibers and / or cotton. The skull shape correcting helmet according to claim 1.

11. An inner liner that contacts the head, positioned on the inner surface of the shell of a cranial reshaping helmet that is placed over the head to correct cranial deformation, The shell comprises an outer layer positioned on the inner surface, an inner layer that contacts the head, and a cushion layer located between the outer layer and the inner layer. The cushion layer has cushioning properties, The inner layer is made of a material that has higher water absorption and / or quick-drying properties than the cushion layer. The outer layer is made of a material that has higher water absorption and / or quick-drying properties than the cushion layer. Inner liner for a skull reshaping helmet.

Images