Cap

Abstract

To provide a cap that allows accurate data on an outer shape of the head to be acquired.SOLUTION: A cap 1 which is worn covering the head 7 to grasp a three-dimensional outer shape of the head 7 of an object person includes: a cover part 10 composed of a sheet 100 for covering the head 7; a first tension imparting part 20 extending downward through the front of the ear 8 of the object person from the cover part 10 for imparting tension to the cover part 10; and a second tension imparting part 30 extending to the front through the lower part of the ear 8 from the cover part 10 for imparting tension to the cover part 10. The cover part 10, the first tension imparting part 20, and the second tension imparting part 30 are arranged so that the ear 8 is exposed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cap. [Background technology]

[0002] Conventionally, caps are known that are worn by subjects such as infants and small children to grasp the external shape of the human head. This type of technology is described, for example, in Patent Document 1. Patent Document 1 describes a head shape measuring sheet that is used to collect data on the head shape required for creating a helmet for correcting the head shape, is configured to cover the head, and has a display that can be read by a three-dimensional scanning operation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7092424 Summary of the Invention [Problem to be solved by the invention]

[0004] Although Patent Document 1 is capable of scanning the external shape of the head while reducing the influence of hair, there is still room for improvement in terms of grasping the external shape of the head more accurately.

[0005] An object of the present invention is to provide a cap that can obtain accurate data regarding the external shape of the head. [Means for solving the problem]

[0006] The cap is worn over the head of a subject in order to grasp the three-dimensional external shape of the head, and is composed of a sheet and comprises a cover portion covering the head, a first tension application portion extending downward from the cover portion, passing in front of the subject's ear, and applying tension to the cover portion, and a second tension application portion extending forward from the cover portion, passing below the ear, and applying tension to the cover portion, with the cover portion, the first tension application portion, and the second tension application portion being positioned so as to expose the ear. Effect of the Invention

[0007] According to the present invention, accurate data regarding the external shape of the head can be obtained. [Brief description of the drawings]

[0008] [Figure 1] 1 is a front view showing a state in which a subject wears a cap according to an embodiment of the present invention. [Diagram 2] 1 is a rear view showing a state in which a subject wears a cap according to an embodiment of the present invention. FIG. [Diagram 3] 1 is a right side view showing a state in which a subject wears a cap according to an embodiment of the present invention. FIG. [Figure 4] 1 is a left side view showing a state in which a subject wears a cap according to an embodiment of the present invention. FIG. [Diagram 5] 1 is a development view showing a state in which a sheet of a cap according to one embodiment of the present invention is developed into a flat surface. [Figure 6] FIG. 2 is a right side view showing a state in which the head of a subject wearing a cap according to an embodiment of the present invention is being scanned. [Figure 7] FIG. 13 is a right side view showing the state in which the head of a subject wearing a cap with a sheet made up of three sheets is being scanned. [Figure 8] FIG. 2 is a right side view showing the handle of the cap according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figs. 1 to 4 are diagrams showing a state in which a subject wears a cap 1 of this embodiment. In Figs. 1 and 2, an arrow X indicates the left-right direction of the cap 1 when worn on the subject's head 7, and X1 indicates the right side and X2 indicates the left side. In Figs. 3 and 4, an arrow Y indicates the front-rear direction of the cap 1 when worn on the subject's head 7, and Y1 indicates the front side and Y2 indicates the rear side. In Figs. 1 to 4, an arrow Z indicates the up-down direction of the cap 1 when worn on the subject's head 7, and Z1 indicates the upper side and Z2 indicates the lower side. In this specification, the left-right direction, the front-rear direction, and the up-down direction mean the directions as seen from the subject wearing the cap 1. In this specification, the front indicates the front side as seen from the subject wearing the cap 1, and the lower side indicates the lower side as seen from the subject wearing the cap 1.

[0010] The cap 1 of this embodiment is worn over the head 7 to grasp the three-dimensional external shape of the subject's head 7 when creating a cranial shape correcting helmet for the subject, such as an infant or young child.

[0011] The cranial shape correction helmet will be explained. The cranial shape correction helmet is worn on the head 7 of the subject, and promotes deformation so that the shape of the skull is corrected as the skull grows. Subjects include, for example, infants and young children who have cranial deformations requiring treatment, such as plagiocephaly, brachycephaly, and dolichocephaly. Plagiocephaly is a deformed shape in which the skull is not symmetrical but is tilted to one side. Brachycephaly is a deformed shape in which the front-to-back dimension of the skull is significantly short. Dolichocephaly is a deformed shape in which the front-to-back dimension of the skull is significantly long.

[0012] The cranial shape correction helmet is designed based on a three-dimensional model of the ideal head 7, which is the treatment target for each subject. The three-dimensional model of the ideal head 7 is created based on data on the external shape of the head 7 of each subject (hereinafter referred to as external shape data). For this reason, when creating a cranial shape correction helmet, it is important to accurately grasp the three-dimensional external shape of the subject's head 7. Note that the external shape data can be, for example, three-dimensional data acquired using a three-dimensional scanner or the like.

[0013] External shape data of the subject's head 7 is acquired by scanning the head 7 with a shape measuring device such as a three-dimensional scanner using optical technology. At this time, the external shape of the head 7 including the hair is acquired as the surface shape of the head 7. Therefore, the cap 1 is used to press the hair against the scalp to reduce the influence of the hair on the external shape data of the head 7. With the cap 1 of this embodiment, more accurate external shape data can be acquired. Note that the shape measuring device for acquiring the external shape data of the head 7 may be, for example, a camera that captures an image of the head 7.

[0014] Next, a description will be given of the configuration of the cap 1. As shown in Figs. 1 to 4, the cap 1 includes a cover portion 10, a first tension applying portion 20, and a second tension applying portion 30.

[0015] The cover portion 10 is constituted by a part of a stretchable sheet 100. In this embodiment, the sheet 100 constituting the cover portion 10 is constituted by one piece.

[0016] The material of the sheet 100 may be, for example, recycled fiber, semi-synthetic fiber, synthetic fiber such as nylon, polyurethane, polyester, or a mixture of two or more of these fibers. The sheet 100 of this embodiment is a cloth-like member made of any of these materials. The detailed structure of the sheet 100 will be described later.

[0017] The cover part 10 covers the frontal region 71, the parietal region 72, the sides of the head including the right side of the head 73 and the left side of the head 74, and the back of the head 75. Specifically, the cover part 10 has a frontal cover part 11 that covers at least a part of the frontal region 71, a parietal cover part 12 that covers the parietal region 72, a right side of the head cover part 13 that covers at least a part of the right side of the head 73, a left side of the head cover part 14 that covers at least a part of the left side of the head 74, and a back of the head cover part 15 that covers at least a part of the back of the head 75.

[0018] In this embodiment, the frontal cover part 11 covers at least the part of the frontal region 71 where hair grows, and the parietal cover part 12 covers the entire parietal region 72. The occipital cover part 15 covers the part of the occipital region 75 except for the area around the ear 8 of the subject, the right temporal cover part 13 covers the part of the right temporal region 73 except for the area around the right ear 81, and the left temporal cover part 14 covers the part of the left temporal region 74 except for the area around the left ear 82.

[0019] In the cover portion 10, a main joint (joint) 50, an auxiliary joint 60, and a displacement prevention portion 40 are formed.

[0020] The main joint 50 is a portion formed by joining the first edge 51 and the second edge 52 of the sheet 100 to each other. In this embodiment, the main joint 50 is formed so as to extend in the front-rear direction along the head 7 at approximately the center in the left-right direction of the head 7 when the cap 1 is attached to the head 7, as shown in Figs. 1 to 4. The main joint 50 is formed from the fifth edge 41 and the sixth edge 42, which are edges of the front head cover part 11 on the subject's eye 2 side, to the parietal cover part 12, as shown in Fig. 1. That is, the main joint 50 is formed so as to extend from the fifth edge 41 and the sixth edge 42 of the front head cover part 11 to just before the back of the head 75.

[0021] The main joint 50 is formed by a joint member 53 and a first edge portion 51 and a second edge portion 52 of the sheet 100 joined together by the joint member 53. The joint member 53 is not particularly limited as long as it is a member capable of joining the first edge portion 51 and the second edge portion 52 to each other. The joint member 53 may be, for example, a thread, an adhesive tape, or a hook-and-loop fastener. In this embodiment, the main joint 50 is a portion where the first edge portion 51 and the second edge portion 52 are sewn together by the joint member 53, which is a thread.

[0022] The auxiliary joint 60 is a portion formed by joining the third edge 61 and the fourth edge 62 of the sheet 100 to each other. In this embodiment, the auxiliary joint 60 is formed in the occipital cover part 15 so as to extend in the front-rear direction along the head 7 at approximately the center in the left-right direction of the head 7 when the cap 1 is worn on the head 7, as shown in Figs. 2 to 4. That is, as shown in Figs. 3 and 4, the auxiliary joint 60 is located on the opposite side of the main joint 50 across the top 72 when the cap 1 is worn on the head 7. Specifically, the auxiliary joint 60 extends in the vertical direction along the head 7 in the occipital cover part 15 when the cap 1 is worn on the head 7, as shown in Fig. 2, and is formed below the upper end of the ear 8 in the vertical direction.

[0023] The auxiliary joint 60 is formed by a joint member 63 and a third edge portion 61 and a fourth edge portion 62 of the sheet 100 joined together by the joint member 63. The joint member 63 is not particularly limited as long as it is a member capable of joining the third edge portion 61 and the fourth edge portion 62 to each other. The joint member 63 may be, for example, a thread, an adhesive tape, or a hook-and-loop fastener. In this embodiment, the auxiliary joint 60 is a portion where the third edge portion 61 and the fourth edge portion 62 are sewn together by the joint member 63 which is a thread.

[0024] The slip prevention part 40 is formed along the fifth edge part 41 and the sixth edge part 42, which are the edges of the cover part 10 on the front head part 71 side, and regulates the movement of the sheet 100. The slip prevention part 40 is formed by the fifth edge part 41 and the sixth edge part 42, and a belt-shaped member 43 fixed to the sheet 100 at these edges. The belt-shaped member 43 is a resin member having lower elasticity than the sheet 100. In this embodiment, the slip prevention part 40 is formed by sewing the belt-shaped member 43 along the fifth edge part 41 and the sixth edge part 42. Since the elasticity of the belt-shaped member 43 is lower than that of the sheet 100, the slip prevention part 40 has a relatively low elasticity at the parts of the sheet 100 to which the belt-shaped member 43 is fixed, such as the fifth edge part 41 and the sixth edge part 42, compared to other parts of the cover part 10. As a result, the fifth edge 41 and the sixth edge 42 in which the anti-slip portion 40 is formed are in a contracted state toward the head 7 compared to other parts of the cover portion 10, suppressing changes in the relative position with the head 7 and preventing slippage of the sheet 100 relative to the head 7 at the anti-slip portion 40.

[0025] The first tension applying part 20 extends downward from the cover part 10, passing in front of the subject's ear 8, and is capable of applying tension to the cover part 10. As shown in Fig. 1, the first tension applying part 20 is formed in a generally U-shape when viewed in the front-back direction. Note that, "in front of the ear 8" specifically means the area between the subject's eye 2 and cheek 6 and the ear 8. In other words, the first tension applying part 20 is formed so that the sheet 100 can also cover the sideburns of the subject.

[0026] In this embodiment, the first tension applying part 20 extends from each of the right head cover part 13 and the left head cover part 14, and is formed to extend to the subchin 91 via the front of the ear 8. The first tension applying part 20 applies tension to the cover part 10 by applying a force F1 downward from the right head 73 side and the left head 74 side. In this specification, the subchin 91 refers to the part of the subject's chin on the neck 3 side.

[0027] The first tension applying portion 20 has a right front extension piece 21, a left front extension piece 22, and a first connecting portion 23.

[0028] The right front extending piece 21 is constituted by a first extending piece 121, which is a band-shaped portion of the sheet 100 and will be described later, and extends from the right head cover part 13, passing in front of the right ear 81, to the underchin 91. One end of the right front extending piece 21 is located at the lower end of the right head cover part 13, and the other end is located at the underchin 91. The right front extending piece 21 extends from in front of the right ear 81 to the underchin 91, in close contact with the part of the subject's right head 73 that is closer to the eye 2 and cheek 6 than the right ear 81 and to the face, while a force F1 is applied from the cover part 10 toward the underchin 91.

[0029] The left front extending piece 22 is constituted by a second extending piece 122, which is a band-shaped portion of the sheet 100 and will be described later, and extends from the left head cover part 14, passing in front of the left ear 82, to the underchin 91. One end of the left front extending piece 22 is located at the lower end of the left head cover part 14, and the other end is located at the underchin 91. The left front extending piece 22 extends from in front of the left ear 82 to the underchin 91 in close contact with the part of the left head 74 of the subject that is closer to the eye 2 and cheek 6 than the left ear 82, and with a force F1 applied from the cover part 10 toward the underchin 91.

[0030] The first connecting portion 23 is a portion that connects the right front extension piece 21 and the left front extension piece 22. The first connecting portion 23 may be, for example, a knot that connects a band-shaped portion of the sheet 100 that constitutes the right front extension piece 21 and a band-shaped portion of the sheet 100 that constitutes the left front extension piece 22. By tying the band-shaped portions of the sheet 100 that constitute the right front extension piece 21 and the left front extension piece 22, respectively, so that a force F1 that pulls downwardly on the forehead cover part 11 is applied, tension can be applied to the cover part 10 via the right front extension piece 21 and the left front extension piece 22. That is, the first connecting portion 23, which is a knot of the band-shaped portion of the sheet 100, is a portion that can connect the right front extension piece 21 and the left front extension piece 22 while tension is applied to the cover part 10 via the right front extension piece 21 and the left front extension piece 22.

[0031] The second tension applying part 30 extends forward from the cover part 10 below the ear 8 of the subject, i.e., passing through the vicinity of the ear 8 on the neck 3 or chin, and is capable of applying tension to the cover part 10. As shown in Figures 1, 3, and 4, the second tension applying part 30 is formed in a substantially U-shape as a whole when viewed in the up-down direction.

[0032] In this embodiment, the second tension applying parts 30 extend from the right and left sides of the occipital cover part 15, and are formed to extend from below the ears 8 to the chin 92. The second tension applying parts 30 apply a force F2 forward from the right and left sides of the occipital cover part 75 to apply tension to the cover part 10.

[0033] The second tension applying portion 30 has a lower right extension piece 31, a lower left extension piece 32, and a second connecting portion 33.

[0034] The lower right extending piece 31 is constituted by a third extending piece 131, which is a band-shaped portion of the sheet 100 and will be described later, and extends from the right side of the occipital covering part 15, below the right ear 81, to the chin 92. One end of the lower right extending piece 31 is located on the right ear 81 side of the occipital covering part 15, and the other end is located on the chin 92 side. The lower right extending piece 31 extends from below the right ear 81 to the chin 92 in close contact with the subject's chin, neck 3, etc., so as to press the nape on the right side of the occipital region 75, while a force F2 is applied from the cover part 10 toward the chin 92.

[0035] The left lower extension piece 32 is constituted by a fourth extension piece 132, which is a band-shaped portion of the sheet 100 and will be described later, and extends from the left side of the occipital covering part 15, below the left ear 82, and to the chin 92. One end of the left lower extension piece 32 is located on the left ear 82 side of the occipital covering part 15, and the other end is located on the chin 92 side. The left lower extension piece 32 extends from below the left ear 82 to the chin 92 in close contact with the subject's chin, neck 3, etc., so as to press the nape of the left side of the occipital region 75, while a force F2 is applied from the cover part 10 toward the chin 92.

[0036] The second connecting portion 33 is a portion that connects the right lower extension piece 31 and the left lower extension piece 32. The second connecting portion 33 may be, for example, a knot that connects a strip-shaped portion of the sheet 100 that constitutes the right lower extension piece 31 and a strip-shaped portion of the sheet 100 that constitutes the left lower extension piece 32. By tying the strip-shaped portions of the sheet 100 that constitute the right lower extension piece 31 and the left lower extension piece 32, respectively, so that a force that pulls forward is applied to the occipital cover part 15, tension can be applied to the cover part 10 via the right lower extension piece 31 and the left lower extension piece 32. That is, the second connecting portion 33, which is a knot of the strip-shaped portion of the sheet 100, is a portion that can connect the right lower extension piece 31 and the left lower extension piece 32 while tension is applied to the cover part 10 via the right lower extension piece 31 and the left lower extension piece 32.

[0037] The cover portion 10, the first tension applying portion 20, and the second tension applying portion 30 are formed so as to expose the ear 8 of the subject wearing the cap 1. That is, the cap 1 has an exposed region 4 which is an area surrounded by the cover portion 10, the first tension applying portion 20, and the second tension applying portion 30 and exposes the ear 8 of the subject. This allows the exposed ear 8 to be scanned without being covered by the sheet 100, so that the position and external shape of the ear 8 can be accurately grasped.

[0038] Here, like the cap 1, the head shape measuring sheet described in Patent Document 1 has ears 8 exposed and not covered by the sheet, but also exposes hair near the ears 8, such as sideburns and nape. There is also room for improvement in terms of fitting the sheet more closely to the head 8 to reduce the influence of hair, etc.

[0039] In contrast, with the cap 1 of this embodiment, even when the ears 8 are exposed, the hair near the ears 8, including the sideburns and nape, can be covered with the sheet 100 by the first tension applying unit 20 and the second tension applying unit 30. Furthermore, since the first tension applying unit 20 and the second tension applying unit 30 can apply forces F1 and F2 to the cover unit 10, the cover unit 10 can be brought into close contact with the head 7, and there is little effect from the hair, etc., and more accurate external shape data closer to the actual surface shape of the head 7 can be obtained.

[0040] Furthermore, the slippage prevention unit 40 causes the sheet 100 to contract toward the head 7 at the fifth edge 41 and the sixth edge 42 on the face side of the forehead cover unit 11, suppressing change in the relative position with the head 7, so that change in the relative position between the forehead cover unit 11 and the forehead 71 can be restricted even if the cover unit 10 is pulled by the first tension application unit 20 and the second tension application unit 30. As a result, with the position of the forehead cover unit 11 restricted, the cover unit 10 is pulled by the first tension application unit 20 and the second tension application unit 30 with a downward force F1 and a forward force F2, so that the cover unit 10 can be fitted more closely to the head 7.

[0041] In this embodiment, the cover portion 10 , the first tension applying portion 20 and the second tension applying portion 30 are configured by a single sheet 100 .

[0042] Next, a detailed configuration of the sheet 100 will be described with reference to Figs. 1 to 5. Fig. 5 is a development view showing the sheet 100 constituting the cap 1 developed into a plane. Note that the multiple dashed lines shown in the first edge 51 and the second edge 52 in Fig. 5 indicate the position of the joining member 53 present in the state where the cap 1 is attached to the head 7. Also, the multiple dashed lines shown in the third edge 61 and the fourth edge 62 in Fig. 5 indicate the position of the joining member 63 present in the state where the cap 1 is attached to the head 7.

[0043] As shown in FIG. 5, the seat 100 includes a main body portion 110, a first extending piece 121, a second extending piece 122, a third extending piece 131, and a fourth extending piece 132. As shown in FIG.

[0044] The main body 110 is a part that constitutes the cover 10 of the cap 1 when it is attached to the head 7. The main body 110 is flat when the sheet 100 is unfolded as shown in Fig. 5, and becomes bag-like so as to be able to cover the head 7 when the sheet 100 is attached to the head 7.

[0045] The main body 110 has a right main body 101 that covers the right half of the head 7 and a left main body 111 that covers the left half, sandwiching a center line C, when the cap 1 is attached to the head 7. The center line C is an imaginary line that passes along the sheet 100 through the center of the head 7 in the left-right direction when the cap 1 is attached to the head 7.

[0046] 5, the right body portion 101 and the left body portion 111 are each formed in a substantially sector shape when viewed in the thickness direction of the sheet 100. The right body portion 101 and the left body portion 111 are line symmetrical with respect to the center line C when the sheet 100 is attached to the head 7.

[0047] A boundary portion 55, which is a boundary between the right main body portion 101 and the left main body portion 111, is formed on the center line C. The boundary portion 55 is formed continuously and without a break along the center line C. That is, the right main body portion 101 and the left main body portion 111 are formed continuously and without interruption via the boundary portion 55. In this embodiment, as shown in FIG. 2, the boundary portion 55 is formed from the back of the head 75 side of the parietal portion 72 to near the upper end of the ear 8 in the vertical direction of the back of the head 75 when the cap 1 is worn on the head 7.

[0048] The following describes the edges of the main body 110. As shown in Fig. 5, the right main body 101 is formed with a first edge 51, a third edge 61, and a fifth edge 41, while the left main body 111 is formed with a second edge 52, a fourth edge 62, and a sixth edge 42.

[0049] The first edge 51 forms the main joint 50 together with the second edge 52 when the cap 1 is attached to the head 7. The first edge 51 is an edge on one side (the upper side of the paper in FIG. 5) of the right-side main body 101 when the sheet 100 is spread out flat as shown in FIG. 5, and curves so as to protrude outward from the right-side main body 101 when viewed in the thickness direction of the sheet 100. Specifically, the first edge 51 is curved over its entirety so as to protrude in a direction away from the center of the right-side main body 101 when viewed in the thickness direction of the sheet 100.

[0050] The second edge 52 forms the main joint 50 together with the first edge 51 when the cap 1 is attached to the head 7. The second edge 52 is an edge on one side (the upper side of the paper in FIG. 5) of the left side main body 111 when the sheet 100 is developed into a flat surface as shown in FIG. 5, and curves so as to protrude outward from the left side main body 111 when viewed in the thickness direction of the sheet 100. Specifically, the second edge 52 is curved over its entirety so as to protrude in a direction away from the center of the left side main body 111 when viewed in the thickness direction of the sheet 100.

[0051] The first edge portion 51 and the second edge portion 52 are formed continuously with each other. As shown in FIG. 5, in the main body portion 110, a curved convergent portion 54 is formed by the boundary portion 55 side of the first edge portion 51 and the boundary portion 55 side of the second edge portion 52 when the sheet 100 is developed in a flat state. The curved convergent portion 54 is a portion where the first edge portion 51 and the second edge portion 52 curve and converge toward the boundary portion 55. That is, the interval between the first edge portion 51 and the second edge portion 52 in the curved convergent portion 54 is formed to become smaller toward the boundary portion 55 side.

[0052] As shown in FIG. 5, when the sheet 100 is unfolded into a flat surface, the first edge portion 51 and the second edge portion 52 have a curved shape. By joining the first edge portion 51 and the second edge portion 52 to each other, a cover portion 10 having a shape that fits a head 7, such as a substantially spherical shape, can be formed.

[0053] The third edge 61 forms the auxiliary joint 60 together with the fourth edge 62 when the cap 1 is attached to the head 7. The third edge 61 is an edge on the other side (the lower side of the paper in FIG. 5) of the right side main body 101 when the sheet 100 is spread out flat as shown in FIG. 5, and curves to protrude outward from the right side main body 101 when viewed in the thickness direction of the sheet 100. Specifically, the third edge 61 is curved over its entirety to protrude in a direction away from the center of the right side main body 101 when viewed in the thickness direction of the sheet 100.

[0054] The fourth edge 62 forms the auxiliary joint 60 together with the third edge 61 when the cap 1 is attached to the head 7. The fourth edge 62 is an edge on the other side (the lower side of the paper in FIG. 5) of the left side main body 111 when the sheet 100 is spread out flat as shown in FIG. 5, and curves to protrude outward from the left side main body 111 when viewed in the thickness direction of the sheet 100. Specifically, the fourth edge 62 is curved over its entirety to protrude in a direction away from the center of the left side main body 111 when viewed in the thickness direction of the sheet 100.

[0055] The third edge 61 and the fourth edge 62 are formed continuously with each other. As shown in Fig. 5, in the main body 110, a curved converging portion 64 is formed by the boundary 55 side of the third edge 61 and the boundary 55 side of the fourth edge 62 when the sheet 100 is developed in a plane. The curved converging portion 64 is a portion where the third edge 61 and the fourth edge 62 curve and converge toward the boundary 55. That is, the interval between the third edge 61 and the fourth edge 62 in the curved converging portion 64 is formed to become smaller toward the boundary 55 side.

[0056] 5, the third edge 61 and the fourth edge 62 have a curved shape when the sheet 100 is developed into a flat surface, so that by joining the third edge 61 and the fourth edge 62 together, a cap 1 having a three-dimensional shape that fits the shape of the head 7 can be formed. Also, as described above, the auxiliary joint 60 formed by the third edge 61 and the fourth edge 62 is located on the opposite side of the main joint 50 across the vertex 72 when the cap 1 is attached to the head 7, so that a bag-like cap 1 that fits the head 7 more nearly spherically can be formed.

[0057] The fifth edge 41 is an edge located on the eye 2 side of the forehead cover part 11 when the cap 1 is attached to the head 7, and forms the slippage prevention part 40 together with the sixth edge 42. The fifth edge 41 is an edge located on the opposite side (left side in FIG. 5) from the boundary part 55 side of the right side main body part 101 when the sheet 100 is unfolded flat as shown in FIG. 5. The fifth edge 41 is formed continuously with the first edge 51. A first extension piece 121 and a third extension piece 131 extend from the edge between the third edge 61 and the fifth edge 41 in the right side main body part 101.

[0058] The sixth edge 42 is an edge located on the eye 2 side of the forehead cover part 11 when the cap 1 is attached to the head 7, and forms the slippage prevention part 40 together with the fifth edge 41. The sixth edge 42 is an edge located on the opposite side (the right side in FIG. 5) from the boundary part 55 side of the left side main body part 111 when the sheet 100 is developed in a flat state as shown in FIG. 5. The sixth edge 42 is formed continuously with the second edge 52. The second extension piece 122 and the fourth extension piece 132 extend from the edge between the fourth edge 62 and the sixth edge 42 in the left side main body part 111.

[0059] The first extending piece 121 is a portion that constitutes the right front extending piece 21 of the first tension applying portion 20 of the cap 1 when the cap 1 is attached to the head 7. The first extending piece 121 is a strip-shaped member that extends from the right main body portion 101 when the sheet 100 is unfolded as shown in Fig. 5. The first extending piece 121 is formed continuously at a position adjacent to the fifth edge portion 41, and extends in a direction away from the first edge portion 51.

[0060] The second extending piece 122 is a portion that constitutes the left front extending piece 22 of the first tension applying portion 20 of the cap 1 when the cap 1 is attached to the head 7. The second extending piece 122 is a strip-shaped member that extends from the left main body portion 111 when the sheet 100 is unfolded as shown in Fig. 5. The second extending piece 122 is formed continuously at a position adjacent to the sixth edge portion 42, and extends in a direction away from the second edge portion 52.

[0061] The third extension piece 131 is a portion that constitutes the lower right extension piece 31 of the second tension applying portion 30 of the cap 1 when the cap 1 is attached to the head 7. The third extension piece 131 is a strip-shaped member that extends from the right side main body portion 101 when the sheet 100 is unfolded as shown in Fig. 5. The third extension piece 131 is located between the first extension piece 121 and the third edge portion 61, is formed continuously with the third edge portion 61, and extends in a direction away from the boundary portion 55.

[0062] The fourth extension piece 132 is a portion that constitutes the lower left extension piece 32 of the second tension applying portion 30 of the cap 1 when the cap 1 is attached to the head 7. The fourth extension piece 132 is a strip-shaped member that extends from the left main body portion 111 when the sheet 100 is unfolded as shown in Fig. 5. The fourth extension piece 132 is located between the second extension piece 122 and the fourth edge portion 62, is formed continuously with the fourth edge portion 62, and extends in a direction away from the boundary portion 55.

[0063] As shown in Figure 5, the seat 100 is symmetrical about the center line C between the area where the right side main body portion 101, the first extension piece 121, and the third extension piece 131 are combined and the area where the left side main body portion 111, the second extension piece 122, and the fourth extension piece 132 are combined.

[0064] Here, the accuracy of the external shape data of the head 7 acquired when the cap 1 of this embodiment is worn will be described with reference to Figs. 6 and 7. Fig. 6 is a right side view showing a state in which the head 7 of a subject wearing the cap 1 of this embodiment is being scanned. Fig. 7 is a right side view showing a state in which the head 7 of a subject wearing the cap 1a having a sheet composed of three sheets is being scanned. In Figs. 6 and 7, the two-dot chain line indicates the position of the cross-section L where the external shape of the head 7 is diagnosed.

[0065] The cap 1a shown in Fig. 7 will be described. The cap 1a is formed of three sheets: a sheet that mainly covers the right side of the head 7, a sheet that mainly covers the left side of the head 7, and a sheet that mainly covers the center side in the left-right direction of the head 7. The joint 50a shown in Fig. 7 is a joint where the edge of the sheet that covers the center side in the left-right direction of the head 7 and the edge of the sheet that covers the left side of the head 7 are sewn together. The sheet that covers the center side in the left-right direction of the head 7 and the sheet that covers the right side of the head 7 are also sewn together and joined.

[0066] As shown in Figures 6 and 7, the external shape data of the subject's head 7 is obtained, for example, by obtaining 3D data of the head 7 using a 3D scanner, obtaining a cross-sectional image from the 3D data, and obtaining the external shape data of the head 7 from the obtained cross-sectional image.

[0067] The accuracy of the external shape data when using cap 1 and cap 1a will be compared using the example of the shape of a cross-section L on which a diagnosis of the head 7 is made. The cross-section L on which a diagnosis of the head 7 is made is a cross-section obtained by cutting the 3D data of the head 7 with a plane parallel to a reference plane formed by connecting three points: the root of the nose and the tragus points of both the left and right ears 8 of the subject.

[0068] The main joint 50 is formed by overlapping two edges of the sheet 100 with the joint member 53 interposed therebetween, and therefore has a thickness and an uneven shape compared to other parts of the sheet 100. For this reason, the measurement accuracy of the head 7 decreases to no small extent where the main joint 50 is formed.

[0069] When obtaining 3D data of the head 7 fitted with the cap 1a shown in Figure 7, the cross-section L obtained from the 3D data intersects at four points: two intersection points P with the joint 50a and two intersection points with the joint between the edge of the sheet covering the left-right center of the head 7 and the edge of the sheet covering the right side of the head 7.

[0070] In contrast, when 3D data of the head 7 fitted with the cap 1 made of one sheet 100 is obtained, the cross section L obtained from the 3D data intersects with the main joint 50 at one intersection P shown in Fig. 6. Therefore, when the cap 1 is used, the number of points at which measurement accuracy decreases is reduced compared to when the cap shown in Fig. 7 is used, and more accurate external shape data of the head 7 can be obtained. In this embodiment, the auxiliary joint 60 is formed below the ear 8 in the up-down direction, so that even when the auxiliary joint 60 is provided, the number of intersections P between the main joint 50 and the auxiliary joint 60 and the cross section L can be one or less.

[0071] Next, the handle 5 will be described with reference to Fig. 8. Fig. 8 is a right side view showing the handle of the cap 1 according to this embodiment. Note that the first connecting portion 23 and the second connecting portion 33 are omitted from Fig. 8.

[0072] The cap 1 has a plurality of patterns 5 formed at least on the surface of the sheet 100 constituting the cover portion 10 and identifiable by a shape measuring device such as a three-dimensional scanner or a camera. Each of the plurality of patterns 5 is formed in a rectangular unit area that is arranged secondarily in a first direction and a second direction perpendicular to the first direction. The patterns 5 of at least adjacent unit areas have different patterns from each other. This makes it easy to obtain external shape data by the shape measuring device. Note that one pattern 5 is arranged in one unit area.

[0073] In this embodiment, as shown in FIG. 8, the cap 1 has a plurality of patterns 5 formed on the entire surface of the sheet 100 constituting the cover part 10, the first tension applying part 20, and the second tension applying part 30, and the plurality of patterns 5 are different from each other. That is, the sheet 100 constituting the cover part 10, the first tension applying part 20, and the second tension applying part 30 does not include two or more patterns 5 having the same pattern. As a result, all patterns 5 identifiable by the shape measuring device on the entire surface of the cap 1 are different from each other, so that it is possible to more accurately determine which part of the head 7 the external shape data acquired by the shape measuring device corresponds to. For example, it becomes easier to accurately determine data on parts of the head 7 that are similar in shape, such as the front head 71 and the back head 75, the right head 73 and the left head 74, and the like, and accurate external shape data can be easily acquired.

[0074] The cap 1 according to the embodiment described above provides the following advantages.

[0075] (1) The cap 1 is a cap 1 that is worn over the head 7 of a subject in order to grasp the three-dimensional external shape of the head 7 of the subject, and is composed of a sheet 100 and comprises a cover part 10 that covers the head 7, a first tension application part 20 that extends downward from the cover part 10, passing in front of the ear 8 of the subject, and applies tension to the cover part 10, and a second tension application part 30 that extends forward from the cover part 10, passing below the ear 8, and applies tension to the cover part 10, and the cover part 10, the first tension application part 20, and the second tension application part 30 are positioned so as to expose the ear 8.

[0076] As a result, tension is applied to the cover part 10 from the first tension applying part 20 and the second tension applying part 30 surrounding the ear 8 while exposing the ear 8, so that the exact shape and position of the ear 8 can be grasped and the sheet 100 of the cover part 10 can be more closely attached to the head 7. Therefore, the exact positional relationship between the ear 8 and the head 7 can be grasped, the effect of hair on the external shape of the head 7 can be further reduced, and more accurate external shape data can be obtained.

[0077] (2) In the cap 1 described in (1), the first tension applying portion 20 includes a band-shaped right front extending piece 21 extending from the right head cover portion 13 covering the right head 73 of the head 7 of the cover portion 10, and a band-shaped left front extending piece 22 extending from the left head cover portion 14 covering the left head 74 of the head 7 of the cover portion 10, and a first connecting portion capable of connecting the right front extending piece 21 and the left front extending piece 22 while applying tension to the cover portion 10 via the right front extending piece 21 and the left front extending piece 22. The second tension applying portion 30 has a band-shaped right lower extending piece 31 extending from the right side of the occipital covering portion 15 of the cover portion 10 which covers the occipital area 75 of the head 7, a band-shaped left lower extending piece 32 extending from the left side of the occipital covering portion 15 of the cover portion 10 which covers the occipital area 75 of the head 7, and a second connecting portion 33 which is capable of connecting the right lower extending piece 31 and the left lower extending piece 32 while applying tension to the cover portion 10 via the right lower extending piece 31 and the left lower extending piece 32.

[0078] This allows tension to be applied to the cover part 10 from both the left and right sides of the side of the head and from both the left and right sides of the back of the head 75, so that the sheet 100 of the cover part 10 can be fitted more closely to the head 7. In addition, since the first tension applying part 20 and the second tension applying part 30 are composed of band-shaped members extending from the left and right sides of the cover part 10 and the first connecting part 23 and the second connecting part 33 that connect them, it becomes easier to attach the cap 1 to the head 7.

[0079] (3) The cap 1 described in (1) or (2) further includes a slippage prevention portion 40 formed along the edge of the cover portion 10 on the front head portion 71 side of the head portion 7 and restricting the movement of the sheet 100.

[0080] This prevents the sheet 100 from shifting relative to the head 7 at the slip prevention section 40 and regulates changes in the relative position between the head 7 and the sheet 100, so that the tension applied to the cover section 10 from the first tension application section 20 and the second tension application section 30 can be reliably transmitted to the entire cover section 10.

[0081] In the cap 1 described in (4)(3), the anti-slip portion 40 is formed by an edge portion of the cover portion 10 on the forehead 71 side and a belt-shaped member 43 having lower elasticity than the sheet 100 fixed to the sheet 100 at the edge portion.

[0082] This allows the slippage prevention portion 40 to be formed more simply.

[0083] (5) The cap 1 comprises a sheet 100 consisting of a single piece of material, the sheet 100 having a first edge 51 and a second edge 52 that can be joined to each other when attached to the head 7, and the sheet 100 has a main joint 50 that extends along a portion of the head 7, the main joint 50 being formed by the first edge 51 and the second edge 52 that are joined to each other when attached to the head 7.

[0084] As a result, the portion covering the head 7 is composed of a single sheet 100, and the edges of the single sheet 100 are joined together, so that the sheet 100 can be made to have a three-dimensional shape that fits the head 7 while minimizing the number of uneven shapes such as seams that affect the acquired external shape of the head 7. Therefore, more accurate external shape data of the head 7 can be acquired.

[0085] (6) In the cap 1 described in (5), the main joint 50 is a portion where the first edge 51 and the second edge 52 are sewn together.

[0086] This allows the sheet 100 to be easily formed into a three-dimensional shape.

[0087] In the cap 1 described in (7), (5) or (6), the sheet 100 has a third edge 61 and a fourth edge 62 that can be joined to each other when worn on the head 7, and covers the forehead 71, the parietal region 72, the right side of the parietal region 73, the left side of the parietal region 74, and the back of the head 75. When worn on the head 7, the sheet 100 has an auxiliary joint 60 that is located on the opposite side of the parietal region 72 from the main joint 50 and that extends along a portion of the head 7, and is formed by the third edge 61 and the fourth edge 62 that are joined to each other.

[0088] As a result, the main joint 50 and the auxiliary joint 60 are positioned on opposite sides of the top of the head 72, resulting in a more three-dimensional shape that fits the head 7 better.

[0089] In the cap 1 described in (8)(7), the main joint 50 is formed from the forehead 71 to the parietal 72 on the sheet 100 so as to extend in the front-to-back direction of the head 7 when the sheet 100 is attached to the head 7, and the auxiliary joint 60 is formed so as to extend in the vertical direction of the head 7 on the back head 75 side when the sheet 100 is attached to the head 7, and is lower than the upper end of the subject's ear 8 in the vertical direction of the head 7.

[0090] As a result, the main joint 50 is formed from the forehead 71 to the parietal 72, and the auxiliary joint 60 is formed below the upper ends of the ears 8 in the vertical direction, resulting in a more three-dimensional shape that fits the head 7 while minimizing the areas that affect the external shape, such as stitching, scanned by a 3D scanner. Therefore, more accurate external shape data of the head 7 can be obtained.

[0091] (9) In the cap 1 described in any one of (5) to (8), the main joint 50 is located at approximately the center of the head 7 in the left-right direction when the sheet 100 is attached to the head 7.

[0092] As a result, the main joint 50 that affects the external shape data of the head 7 is located approximately at the center of the head 7 in the left-right direction, so that the accuracy of the external shape data of the head 7 in the left-right direction becomes uniform.

[0093] (10) In the cap 1 described in any one of (5) to (9), the first edge portion 51 and the second edge portion 52 are curved so as to protrude outward from the sheet 100 when viewed in the thickness direction of the sheet 100 when the sheet 100 is unfolded into a flat surface, and are formed continuously with each other.

[0094] This allows a single sheet 100 to form a spherical or bag-shaped cap 1 that is more suited to the outer shape of the head 7.

[0095] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified as appropriate.

[0096] In the above embodiment, the first connecting portion 23 is a knot between the right front extension piece 21 and the left front extension piece 22, and the second connecting portion 33 is a knot between the right lower extension piece 31 and the left lower extension piece 32, but the configurations of the first connecting portion 23 and the second connecting portion 33 are not particularly limited. For example, the first connecting portion 23 may be a pair of hook-and-loop fasteners that are detachable from each other and arranged on the other end side of the right front extension piece 21 and the other end side of the left front extension piece 22, or may be an adhesive tape, or may be a cord lock, in other words, a cord stopper. Similarly, the second connecting portion 33 may be a pair of hook-and-loop fasteners that are detachable from each other and arranged on the other end side of the right lower extension piece 31 and the other end side of the left lower extension piece 32, or may be an adhesive tape, or may be a cord lock, in other words, a cord stopper.

[0097] In this embodiment, the main joint 50 is formed from the frontal region 71 to the parietal region 72 while the seat 100 is attached to the head 7, and the auxiliary joint 60 is formed at the occipital region 75. However, the positions of the main joint 50 and the auxiliary joint 60 are not particularly limited. For example, the main joint 50 and the auxiliary joint 60 may be formed at the right side of the head 73, the left side of the head 74, the frontal region 71, the parietal region 72, or the occipital region 75.

[0098] Also, for example, the cap 1 does not need to include the auxiliary joint portion 60 .

[0099] Also, for example, the cap 1 does not need to include the detachment prevention portion 40.

[0100] Furthermore, for example, the cap 1 does not have to have a plurality of different patterns 5 as shown in FIG. 8 applied over the entire surfaces of the cover portion 10, the first tension applying portion 20, and the second tension applying portion 30.

[0101] In the above embodiment, the cover portion 10, the first tension applying portion 20, and the second tension applying portion 30 are configured from a single sheet 100, but the cover portion 10, the first tension applying portion 20, and the second tension applying portion 30 may be configured from different sheets. Also, the first tension applying portion 20 and the second tension applying portion 30 may be configured from a material different from the sheets.

[0102] Furthermore, in the above embodiment, the cover portion 10 is made up of one sheet, but the cover portion 10 may be made up of two or more sheets. [Explanation of symbols]

[0103] 1 Cap 4 Exposure area 7 head 8. Ears 10 Cover part 20 First tension applying section 30 Second tension applying section 100 sheets

Claims

1. A cap that is worn over a subject's head in order to grasp the three-dimensional external shape of the subject's head, A cover portion configured by a sheet and covering the head; A first tension applying portion that extends downward from the cover portion through a front of the ear of the subject and applies tension to the cover portion; A second tension applying portion extends forward from the cover portion through below the ear and applies tension to the cover portion, A cap, wherein the cover portion, the first tension application portion, and the second tension application portion are positioned to expose the ear.

2. The first tension applying portion is A band-shaped right front extension piece extending from a right head cover part covering a right head part of the head, A band-shaped left front extension piece extending from a left head cover part covering a left head part of the head, a first connecting portion capable of connecting the right front extension piece and the left front extension piece in a state in which tension is applied to the cover portion via the right front extension piece and the left front extension piece; The second tension applying portion is A band-shaped right lower extension piece extending from the right side of the back head cover part covering the back of the head of the head, A band-shaped left lower extension piece extending from the left side of the rear head cover part covering the rear head of the head, The cap described in claim 1, further comprising a second connecting portion capable of connecting the right-hand lower extension piece and the left-hand lower extension piece while applying tension to the cover portion via the right-hand lower extension piece and the left-hand lower extension piece.

3. The cap according to claim 1 or 2, further comprising a slippage prevention portion formed along an edge of the cover portion on a frontal side of the head, the slippage prevention portion restricting movement of the sheet.

4. The cap according to claim 3 , wherein the anti-slip portion is formed by an edge portion of the cover portion on the front head side and a belt-shaped member having lower elasticity than the sheet fixed to the edge portion of the sheet.

Images