Helmet headband and helmet

Abstract

To provide a helmet headband and a helmet that can properly maintain an occipital holding posture by a part wound around the back of the head of a user, even when the part is rotated during use.SOLUTION: A headband 4 attached to a cap body 2 of a helmet 1 includes a front winding portion 41 and a rear winding portion 42, in which the rear winding portion 42 includes a first adjusting portion 43 and a second adjusting portion 44 that can be relatively displaced, with a length being adjustable, a connecting portion 46 extending downward during use of the helmet 1 is formed at each of left and right rear portions of the front winding portion 41, and left and right front portions of the rear winding portion 42 are rotatably connected to a lower portion of the connecting portion 46, respectively.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a helmet headband and a helmet, and more particularly to a helmet headband connected to a helmet shell via a hammock. [Background technology]

[0002] BACKGROUND ART Conventionally, in a helmet including a shell, a hammock connected to the shell, and a headband, there is known a technique for making the headband partially rotatable (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-102839 Summary of the Invention [Problem to be solved by the invention]

[0004] The helmet described in the aforementioned patent document has a headband composed of a main band, an adjustment band, and a holding band, and the adjustment band and the holding band that are wrapped around the back of the user's head are configured to be rotatable relative to the main band. However, because the point that rotatably supports the adjustment band and the holding band is located halfway through the main band, if the rotation angle of the adjustment band and the holding band relative to the main band changes, it is difficult to properly maintain the holding position of the back of the head by the adjustment band and the holding band.

[0005] The present invention has been made in consideration of the above-described circumstances, and the problem that the present invention aims to solve is to provide a headband for a helmet, and a helmet, which can properly maintain the position of the back of the head held by the part that is wrapped around the back of the user's head, even if the part rotates during use. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides the following helmet headband.

[0007] (1) A helmet headband attached to a helmet shell, the headband comprising: a front winding portion wound around the forehead of a helmet user; and a rear winding portion continuous with the front winding portion and wound around the back of the helmet user's head; the rear winding portion comprises a first adjustment portion and a second adjustment portion that are relatively displaceable, and the length of the rear winding portion can be adjusted by changing the relative positions of the first adjustment portion and the second adjustment portion; connecting portions are formed at the left and right rear portions of the front winding portion that extend downward when the helmet is in use; and the left and right front portions of the rear winding portion are rotatably connected to the lower portions of the connecting portions, respectively. ,before a rotation restricting portion is formed on one of a front portion of the rear winding portion and a lower portion of the connecting portion, restricting a rotation range relative to the other, the rotation restricting portion being formed by a first convex portion formed on the lower portion of the connecting portion and a second convex portion formed on an outer end portion of the front portion of the rear winding portion; the first convex portion extends outward from the cap body in the rotation axis direction of the rear winding portion, and the second convex portion extends in the same direction as the first convex portion, When the rear winding portion rotates relative to the connecting portion, the first protrusion Aspects of and the second protrusion Aspects of and abut on the same rotational circumference, thereby defining a rotation range of the rear winding portion relative to the connecting portion. Control A headband for helmets.

[0008] (2) The rotation restricting portion restricts the rotation range of the rear winding portion downward from a horizontal plane to within 50 degrees in a side view when the helmet is in use. (1) A headband for a helmet according to claim 1.

[0009] (3) a locking hole is opened in one of the front portion of the rear winding portion and the lower portion of the connecting portion, and a locking claw is formed in the other, and the front portion of the rear winding portion and the lower portion of the connecting portion are rotatably connected by inserting the locking claw into the locking hole; (1) or (2)A headband for a helmet according to claim 1.

[0010] (4) The locking hole or the locking claw formed in the lower part of the connecting part is connected to the upper part of the connecting part. The distance from the lower end of the front winding portion is 30 mm or more and 50 mm or less. (3) A headband for a helmet according to claim 1.

[0011] In addition, in order to solve the above-mentioned problems, the present invention provides the following helmet.

[0012] (5) Any one of (1) to (4) and a cap body to which the helmet headband is attached. [Effects of the Invention]

[0013] The helmet headband and helmet of the present invention have the advantage that even if the part wrapped around the back of the user's head rotates during use, the part can properly maintain the position in which the back of the head is held by the part. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 2 is a right side view showing the helmet according to the embodiment. [Figure 2] FIG. 1 is a left side view showing a helmet according to an embodiment of the present invention. [Figure 3] FIG. 2 is a right side cross-sectional view showing the internal structure of the helmet according to the embodiment. [Figure 4] FIG. 2 is a bottom view showing the helmet according to the embodiment. [Figure 5] FIG. [Figure 6] An exploded view of the headband. [Figure 7] FIG. 10 is a diagram showing the rear winding portion of the headband. [Figure 8] FIG. 2 is an exploded view showing the assembly configuration of the hammock and the headband. [Figure 9] FIG. 10 is a diagram showing the rotation range of the rear winding part of the headband. [Figure 10]FIG. 10 is a right side view showing a first positional relationship between the headband and the skull. [Figure 11] FIG. 10 is a right side view showing a second positional relationship between the headband and the skull. DETAILED DESCRIPTION OF THE INVENTION

[0015] Next, the schematic configuration of a helmet 1 according to one embodiment of the present invention will be described using Figures 1 to 11. In this embodiment, the right side in Figure 1 is the front of the helmet 1, and the front side in the plane of the paper in Figure 1 is the right side of the helmet 1. That is, in this embodiment, the direction as seen by the user of the helmet 1 is defined as the direction in the helmet 1.

[0016] 1 to 4, a helmet 1 according to this embodiment has a shell 2 made of a hard material such as synthetic resin, and an inner peripheral surface 2P to which a hammock 3, a headband 4, and a plurality of shock-absorbing members 5, each made of a soft synthetic resin, are detachably attached. The headband 4 is one embodiment of a helmet headband according to the present invention. For ease of explanation, the headband 4 is not shown in FIG. 4, and the hammock 3 and headband 4 are not shown in FIG. 5.

[0017] The hammock 3 is a member that protects the user's head by forming a gap between the inner peripheral surface 2P of the cap body 2 and the user's head. As shown in FIG. 4, the hammock 3 has an annular portion 30 formed in a circular ring shape at its central portion (the portion that abuts against the top of the user's head), and eight linking portions 31 formed radially extending from the annular portion 30. A linking hole 31a is opened at the tip of each linking portion 31. The linking hole 31a of each linking portion 31 engages with a locking portion 21 (see FIG. 5) provided on the inner peripheral surface 2P of the cap body 2 so as to protrude inward, thereby fixing the hammock 3 to the inside of the cap body 2. In this way, the hammock 3 is attached to the cap body 2 via the multiple linking portions 31.

[0018] 3 and 4, of the eight linking portions 31, four linking portions 31 extending toward both the left and right sides are formed with band support portions 32. Specifically, of the four linking portions 31 extending toward both the left and right sides, band support portions 32 are formed at the front of the two front linking portions 31 and at the rear of the two rear linking portions 31. Two support holes 32a are formed in each of the band support portions 32.

[0019] 3 and 4, on the inner peripheral surface 2P of the cap body 2, a plurality of (four in this embodiment) shock absorbing members 5 that partially cover the inner peripheral surface 2P are attached between the connecting portions 31 of the hammock 3. The shock absorbing members 5 are made of a material such as polyethylene, polypropylene, polylactic acid, polyamide, elastomer, etc.

[0020] 4 and 5, in the helmet 1 according to this embodiment, the shell 2 is formed with engaging portions 22 that protrude inward from the inner circumferential surface 2P as joining portions for joining the impact absorbing members 5 to the inner circumferential surface 2P. The engaging portions 22 are formed in four locations on the shell 2: the forehead, the back of the head, and both the left and right sides of the head. In this embodiment, as shown in FIG. 2, the impact absorbing members 5 are attached to each of the engaging portions 22 formed in four locations on the inner circumferential surface 2P of the shell 2.

[0021] 3, a headband 4 that is wound around the head of a user of the helmet 1 is connected to the band support part 32. The headband 4 includes a front winding part 41 that is wound around the forehead of the user of the helmet 1, and a rear winding part 42 that is wound around the back of the head. The front winding part 41 and the rear winding part 42 can be made of polyethylene, polypropylene, polyamide, elastomer, etc., but it is preferable to use polyethylene from the viewpoints of low cost, impact resistance, and flexibility.

[0022] As shown in Figures 3 and 6, the front winding part 41 is provided with four supported parts 41a, each with a support claw 41b formed thereon. As shown in Figures 3 and 8, the headband 4 is supported by the hammock 3 by engaging the support claws 41b of the supported parts 41a with any of the support holes 32a in the band support part 32. A connecting part 46 is formed at the rear of the front winding part 41, and extends downward when the helmet 1 is in use. A locking claw 46b is formed at the lower end 46a of the connecting part 46.

[0023] As shown in Figure 7, the rear winding portion 42 is configured by combining a first adjustment portion 43 on the right side and a second adjustment portion 44 on the left side. The first adjustment portion 43 and the second adjustment portion 44 are relatively displaceable, and their relative positions are fixed by operating the lock button 45a of the lock portion 45. That is, the length of the rear winding portion 42 is adjustable by changing the relative positions of the first adjustment portion 43 and the second adjustment portion 44. The first adjustment portion 43 is formed with an adjustment groove portion 43b that can engage with the lock button 45a of the lock portion 45 to fix the relative position with the second adjustment portion 44. Furthermore, the second adjustment portion 44 is formed with a guide portion 44b for guiding the tip end of the first adjustment portion 43.

[0024] 1 and 2, the front end portions 43a of the first adjusting portion 43 and the front end portion 44a of the second adjusting portion 44 are rotatably connected to the lower ends 46a of the connecting portions 46, respectively. Specifically, a locking hole 43c is formed in the front end portion 43a of the first adjusting portion 43, and the locking claw 46b of the connecting portion 46 is inserted into the locking hole 43c, thereby rotatably connecting the rear winding portion 42 to the connecting portion 46. Similarly, in the second adjusting portion 44, the locking claw 46b of the connecting portion 46 is inserted, thereby rotatably connecting the rear winding portion 42 to the connecting portion 46. By forming the rear winding portion 42 to be rotatable relative to the front winding portion 41 as in this embodiment, it becomes easier to secure space between the rear winding portion 42 and the inner surface 2P of the cap body 2, making it easier to remove the impact absorbing member 5 formed on the back of the head and to clean and maintain the inner surface 2P of the cap body 2.

[0025] In addition, it is also possible to rotatably connect the front end of the rear winding portion 42 and the lower end of the connecting portion 46 by forming a locking claw at the front end of the rear winding portion 42, forming a locking hole at the lower end 46a of the connecting portion 46, and inserting the locking claw into each locking hole.

[0026] 7 and 8, in the headband 4 according to the present embodiment, a restricting protrusion 46c which is a first protrusion and a restricted protrusion 43d which is a second protrusion are formed as rotation restricting portions that restrict the rotation range of the lower end 46a of the connecting portion 46 and the front end 43a of the first adjusting portion 43. Then, as shown in Fig. 9, when the rear winding portion 42 rotates relative to the connecting portion 46, the restricting protrusion 46c and the restricted protrusion 43d come into contact on the same rotation circumference, thereby restricting the rotation range of the first adjusting portion 43 (rear winding portion 42) relative to the connecting portion 46.

[0027] It is also possible to provide a rotation restricting portion that restricts the rotation range of only one of the lower end 46a of the connecting portion 46 and the front end 43a of the first adjustment portion 43. It is also possible to form a convex portion as the rotation restricting portion on either the lower end 46a or the front end 43a, and a concave portion on the other.

[0028] 9, in this embodiment, the rotation restricting portion (restricting protrusion 46c and restricted protrusion 43d) is configured so that the rotation range of the first adjustment portion 43 (rear winding portion 42) downward from the horizontal plane is 45 degrees in a side view when the helmet 1 is in use. In this way, from the perspective of preventing the rear winding portion 42 from sagging downward, it is preferable to restrict the rotation range of the rear winding portion 42 in a side view when the helmet 1 is in use to within 50 degrees.

[0029] As described above, in the helmet 1 according to this embodiment, the connecting portions 46 that extend downward when the helmet 1 is in use are formed at the left and right rear portions of the front winding portion 41. The left and right front end portions of the rear winding portion 42 are rotatably connected to the lower end portions 46a of the connecting portions 46, respectively. This allows the rotation center of the rear winding portion 42 (the portion that engages with the connecting portions 46) to be brought closer to the portion of the user's skull that protrudes furthest to the rear, as shown in FIG. 10 . Therefore, after the rear winding portion 42 is positioned along the user's skull as shown in FIG. 10 , if the rotation angle of the rear winding portion 42 relative to the connecting portions 46 changes as shown in FIG. 11 , the rear winding portion 42 can be aligned with the skull. That is, in the helmet 1 according to this embodiment, the rear winding portion 42 can appropriately maintain the position at which the rear of the head is held by the rear winding portion 42, even if the rotation angle of the rear winding portion 42 relative to the connecting portions 46 changes.

[0030] As described above, from the viewpoint of bringing the connecting portion between the rear winding portion 42 and the connecting portion 46 closest to the part of the user's skull that protrudes furthest to the rear, it is preferable that the connecting portion between the front end of the rear winding portion 42 and the lower end 46a of the connecting portion 46 be formed so that the distance from the lower end of the front winding portion 41 is 30 mm to 50 mm. In addition, by setting the above dimensions, people with long hair can also let their tied-up hair stick out through the gap between the rear end of the cap body 2 and the rear winding portion 42.

[0031] In the helmet 1 according to this embodiment, the left and right front end portions of the rear winding portion 42 are rotatably connected to the lower end portions 46a of the connecting portion 46, respectively, but the manner of connection between the rear winding portion 42 and the connecting portion 46 is not limited to this embodiment. In other words, as long as the front portion of the rear winding portion 42 and the lower portion of the connecting portion 46 are connected, it is not necessary to connect the respective end portions.

[0032] Furthermore, in the headband 4 according to this embodiment, a restricting convex portion 46c, which is a first convex portion, and a restricted convex portion 43d, which is a second convex portion, are formed on the lower end portion 46a of the connecting portion 46 and the front end portion 43a of the first adjustment portion 43 as rotation restricting portions that restrict the relative rotation range. This prevents the rear winding portion 42 from sagging downward, making it possible to appropriately maintain a holding posture for the back of the head. Furthermore, by limiting the rotation range of the rear winding portion 42 relative to the front winding portion 41 to an appropriate range, it is possible to easily adjust the angle of the rear winding portion 42 relative to the front winding portion 41.

[0033] Furthermore, in the headband 4 according to the present embodiment, when the rear winding portion 42 rotates relative to the connecting portion 46, the restricting protrusions 46c and the restricted protrusions 43d come into contact with each other on the same rotational circumference, thereby restricting the range of rotation of the first adjustment portion 43 (rear winding portion 42) relative to the connecting portion 46. In this way, by forming portions in the rear winding portion 42 and the connecting portion 46 that come into contact with each other, it is possible to provide a rotation restricting portion with a simple configuration.

[0034] Furthermore, in the headband 4 according to this embodiment, locking holes are opened in the front ends of the rear winding part 42 (the front end 43a of the first adjustment part 43 and the front end 44a of the second adjustment part 44), and the locking claws 46b of the connecting part 46 are inserted into these locking holes, thereby rotatably connecting the rear winding part 42 to the connecting part 46. By engaging them with each other to form a rotation mechanism in this way, the rear winding part 42 can be made rotatable with respect to the connecting part 46 with a simple configuration without using any other additional parts. Note that the connecting part between the rear winding part 42 and the connecting part 46 can be configured with a hinge shape, a connection using a fixing pin, or the like, in addition to being configured with locking claws and locking holes. [Explanation of symbols]

[0035] 1 helmet 2 cap body 2P Inner surface 3 Hammock 4 Headband 5 Shock absorbing member 21 Locking part 22 Engagement part (joint part) 30 Circular section 31 Linking section 31a Connection hole 32 Band support part 32a Support hole 41 Front winding part 41a Supported part 41b Support claw 42 rear winding portion 43 first adjustment portion 43a Front end 43b Adjustment groove 43c Locking hole 43d Restricted convex part 44 Second adjustment part 44a Front end part 44b Guide part 45 Lock part 45a Lock button 46 Connection part 46a Lower end 46b Locking claw 46c Regulating convex part

Claims

1. A helmet headband attached to a helmet shell, a front wrapping portion that is wrapped around the forehead of a user of the helmet; a rear winding portion that is continuous with the front winding portion and is wound around the back of the head of the helmet user, the rear winding portion includes a first adjustment portion and a second adjustment portion that are relatively displaceable, and the length of the rear winding portion is adjustable by changing the relative position of the first adjustment portion and the second adjustment portion; A connecting portion is formed at each of the left and right rear portions of the front winding portion, and extends downward when the helmet is in use, left and right front portions of the rear winding portion are rotatably connected to lower portions of the connecting portion, a rotation restricting portion is formed on one of the front portion of the rear winding portion and the lower portion of the connecting portion to restrict a rotation range relative to the other; the rotation restricting portion is formed by a first convex portion formed on a lower portion of the connecting portion and a second convex portion formed on an outer end portion of a front portion of the rear winding portion, the first protrusion extends to the outside of the cap body in the rotation axis direction of the rear winding part, the second protrusion extends in the same direction as the first protrusion, A headband for a helmet, in which when the rear winding portion rotates relative to the connecting portion, the side surfaces of the first convex portion and the second convex portion abut on the same rotational circumference, thereby restricting the rotation range of the rear winding portion relative to the connecting portion.

2. The helmet headband according to claim 1, wherein the rotation restricting portion restricts a downward rotation range of the rear wrapping portion from a horizontal plane to within 50 degrees in a side view when the helmet is in use.

3. a locking hole is formed in one of the front portion of the rear winding portion and the lower portion of the connecting portion, and a locking claw is formed in the other of the front portion of the rear winding portion and the lower portion of the connecting portion; 3. The helmet headband according to claim 1, wherein the front portion of the rear wrapping portion and the lower portion of the connecting portion are rotatably connected together by inserting the locking claw into the locking hole.

4. 4. The helmet headband according to claim 3, wherein the locking hole or the locking claw formed in the lower part of the connecting portion is formed so that the distance from the lower end of the front winding portion to which the upper part of the connecting portion is connected is 30 mm or more and 50 mm or less.

5. A helmet headband according to any one of claims 1 to 4; A helmet comprising: a hat body to which the helmet headband is attached.

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