HELMET BUCKLE

Abstract

The present disclosure relates to a helmet buckle. The helmet buckle according to the present disclosure comprises: a base part (100) for guiding a band part (400) to slide when the band part (400) advances or retreats; a locking part (200) rotatably coupled to the base part (100), and fastened to the band part (400); and an operating part (300) which is rotatably coupled to the base part (100), and which rotates the locking part (200) so as to separate the locking part (200) from the band part (400) if the operating part rotates at least a predetermined angle with respect to the base part (100).

Claims

1. A helmet buckle comprising: a base part configured to guide a band part to slide when the band part advances or retreats; a locking part rotatably coupled to the base part and fastened with the band part; and an operating part rotatably coupled to the base part and configured to rotate the locking part to separate the locking part from the band part when the operating part is rotated more than a predetermined angle with respect to the base part.

2. The helmet buckle according to claim 1, wherein the locking part has a first engaging portion on a side, wherein the operating part has, on a side, a second engaging portion that the first engaging portion engages, wherein while the operating part is rotated up to the predetermined angle with respect to the base part, the first engaging portion and the second engaging portion are spaced apart from each other, and wherein when the operating part is rotated more than the predetermined angle with respect to the base part, the first engaging portion engages the second engaging portion.

3. The helmet buckle according to claim 2, wherein the operating part has a predetermined space on a side, wherein the second engaging portion is formed at a boundary of the predetermined space, wherein while the operating part is rotated up to the predetermined angle with respect to the base part, the first engaging portion is moved with respect to the operating part in the predetermined space, and wherein when the operating part is rotated more than the predetermined angle with respect to the base part, the first engaging portion engages the second engaging portion.

4. The helmet buckle according to claim 3, wherein the predetermined space is formed in a receding portion recessed at the side of the operating part, and wherein the second engaging portion is formed as a step formed at a boundary of the receding portion.

5. The helmet buckle according to claim 3, wherein the first engaging portion is formed in a plate shape and disposed in the predetermined space.

6. The helmet buckle according to claim 1, wherein the locking part includes: a fastening portion rotatably coupled to the base part and fastened with the band part; and a first engaging portion protruded from two sides of the fastening portion in a direction, and wherein the operating part has a receding portion recessed at two sides, and a second engaging portion is formed as a step formed at a boundary of the receding portion.

7. The helmet buckle according to claim 6, wherein while the operating part is rotated up to the predetermined angle with respect to the base part, the first engaging portion is moved with respect to the operating part in the receding portion, and wherein when the operating part is rotated more than the predetermined angle with respect to the base part, the first engaging portion engages the second engaging portion.

8. The helmet buckle according to claim 2, wherein the locking part is rotatably coupled to the base part by a first rotation axis, wherein the operating part is rotatably coupled to the base part by a second rotation axis, and wherein the second rotation axis is farther away from the first engaging portion and the second engaging portion than the first rotation axis.

9. The helmet buckle according to claim 1, wherein before the operating part is rotated with respect to the base part, the operating part fastens the locking part with the band part by applying pressure to the locking part.

10. The helmet buckle according to claim 9, wherein the locking part has a first engaging portion on a side, wherein the operating part has, on a side, a third engaging portion that the first engaging portion engages, and wherein before the operating part is rotated with respect to the base part, the first engaging portion engages the third engaging portion.

11. The helmet buckle according to claim 10, wherein the operating part has a predetermined space on a side, and wherein the third engaging portion is formed at a boundary of the predetermined space.

12. The helmet buckle according to claim 11, wherein the predetermined space is formed in a receding portion recessed at a side of the operating part, and wherein the third engaging portion is formed as a step formed at a boundary of the receding portion.

13. The helmet buckle according to claim 11, wherein the first engaging portion is formed in a plate shape and disposed in the predetermined space.

14. The helmet buckle according to claim 1, wherein the base part includes: a bottom portion extended in a plate shape; and a pair of partition walls extended from two sides of the bottom portion, facing each other, such that the locking part is rotatably coupled to one portion, and the operating part is rotatably coupled to the other portion.

15. The helmet buckle according to claim 1, further comprising: an elastic means to provide an elastic force to the operating part in a direction toward the band part.

16. The helmet buckle according to claim 15, wherein the elastic means is a torsion spring, and wherein an end of the torsion spring is coupled to the operating part, and an opposite end of the torsion spring is supported on a first rotation axis rotatably coupling the locking part to the base part.

Description

DESCRIPTION OF DRAWINGS

[0027] FIG. 1 is a perspective view of a helmet buckle according to an embodiment of the present disclosure.

[0028] FIG. 2 is an exploded perspective view of a helmet buckle according to an embodiment of the present disclosure.

[0029] FIGS. 3 to 6 are cross-sectional views showing an operation process of a helmet buckle according to an embodiment of the present disclosure.

[0030] FIGS. 7A to 7C are top views showing an initial fastening process of a helmet buckle according to an embodiment of the present disclosure.

BEST MODE

[0031] The objectives, particular advantages and new features of the present disclosure will be apparent from the following detailed description and exemplary embodiments in association with the accompanying drawings. In affixing the reference numbers to the elements of each drawing in the present disclosure, it should be noted that identical elements are given as identical numbers as possible although they are depicted in different drawings. Additionally, the terms such as first, second or the like are used to distinguish one element from another, and the elements are not limited by the terms. Hereinafter, in describing the present disclosure, when it is determined that a certain description of related known technology may unnecessarily obscure the subject matter of the present disclosure, the detailed description is omitted.

[0032] Basically, a helmet buckle according to an embodiment of the present disclosure is used in motorcycle helmets or helmets for sports including ski helmets, and is a device used to fasten/separate a band equipped in the helmet or adjust the length.

[0033] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0034] FIG. 1 is a perspective view of a helmet buckle according to an embodiment of the present disclosure, and FIG. 2 is an exploded perspective view of the helmet buckle according to an embodiment of the present disclosure.

[0035] As shown in FIGS. 1 and 2, the helmet buckle according to an embodiment of the present disclosure includes a base part 100 to guide a band part 400 to slide when the band part 400 advances or retreats, a locking part 200 rotatably coupled to the base part 100, and fastened with the band part 400, and an operating part 300 rotatably coupled to the base part 100, and configured to rotate the locking part 200 to separate the locking part 200 from the band part 400 when the operating part 300 is rotated more than a predetermined angle with respect to the base part 100.

[0036] The base part 100 plays a role in guiding the band part 400 to slide when the band part 400 advances or retreats, and supporting the locking part 200 and the operating part 300. Here, the base part 100 may include a bottom portion 110 and a pair of partition walls 120. In this instance, the bottom portion 110 may be extended in a plate shape corresponding to the band part 400, and the pair of partition walls 120 may be extended from two sides (sides in the length direction) of the bottom portion 110, facing each other. The locking part 200 is rotatably coupled to one portion (far away from the side where the band part 400 advances) of the partition wall 120, and the operating part 300 is rotatably coupled to the other portion (close to the side where the band part 400 advances) of the partition wall 120. More specifically, a first rotation axis 220 may be coupled to one portion of the partition wall 120, and the locking part 200 may be rotatably coupled to the base part 100 by the first rotation axis 220. Additionally, a second rotation axis 340 may be coupled to the other portion of the partition wall 120, and the operating part 300 may be rotatably coupled to the base part 100 by the second rotation axis 340.

[0037] Additionally, the base part 100 may be connected to a band or a belt and mounted on the helmet, and to this end, the base part 100 may include a connection portion 130 to which the band or the belt is connected. Here, the connection portion 130 may be extended from an end of the partition wall 120 (an end at the opposite side in the direction in which the band part 400 advances) in a direction (a downward direction) facing away from the operating part 300.

[0038] Meanwhile, the base part 100 (the bottom portion 110) may be extended in the shape of a curve having a curvature to conform to the shape of the wearer's chin, thereby making the wearer less uncomfortable. Additionally, because the base part 100 directly contacts the wearer, the base part 100 may be, for example, formed from SS316 stainless steel that is not harmful to the human body, but is not necessarily limited thereto.

[0039] The locking part 200 plays a role in securing the band part 400 when it is fastened with the band part 400. As described above, the locking part 200 may be rotatably coupled to the base part 100 by the first rotation axis 220. Here, because the locking part 200 is disposed at a predetermined distance apart from the bottom portion 110 of the base part 100 (see FIG. 3), the band part 400 may advance or retreat through the space between the bottom portion 110 of the base part 100 and the locking part 200. As shown in FIG. 2, the locking part 200 may have a first engaging portion 210 on one side. Specifically, the locking part 200 may include a fastening portion 205 and the first engaging portion 210. Here, the fastening portion 205 may be fastened with the band part 400, and be rotatably coupled to the base part 100 by the first rotation axis 220. In this instance, a second toothed portion 230 may be formed on one surface (lower surface) the fastening portion 205, and the second toothed portion 230 may be coupled to a first toothed portion 410 formed in the band part 400, so the fastening portion 205 may be fastened to the band part 400. Additionally, the first engaging portion 210 protrudes in a direction (a direction facing away from the first rotation axis 220, or a direction in which the band part 400 advances) from two sides of the operating part 300, and plays a role in controlling the fastening portion 205 when it engages a second engaging portion 310 or a third engaging portion 320 of the operating part 300. For example, the first engaging portion 210 may be formed in a plate shape, and disposed in a receding portion 335 formed at two sides of the operating part 300. Here, when the first engaging portion 210 engages the third engaging portion 320 of the operating part 300, the locking part 200 may be fastened with the band part 400, or when the first engaging portion 210 engages the second engaging portion 310 of the operating part 300 by the rotation of the operating part 300, the fastening portion 205 may be separated from the band part 400, and its related description will be described in detail below.

[0040] The operating part 300 plays a role in rotating the locking part 200 to separate the locking part 200 from the band part 400. As described above, the operating part 300 may be rotatably coupled to the base part 100 by the second rotation axis 340. Here, when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100, the operating part 300 may rotate the locking part 200 to separate the locking part 200 from the band part 400.

MODE FOR INVENTION

[0041] Specifically, the operating part 300 may have, on one side, the second engaging portion 310 that the first engaging portion 210 of the locking part 200 engages. As shown in FIGS. 3 and 4, while the operating part 300 is rotated up to the predetermined angle with respect to the base part 100, the first engaging portion 210 of the locking part 200 and the second engaging portion 310 of the operating part 300 are spaced apart from each other. Accordingly, while the operating part 300 is rotated up to the predetermined angle with respect to the base part 100, the locking part 200 is not rotated. However, as shown in FIGS. 5 and 6, when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100, the first engaging portion 210 of the locking part 200 engages the second engaging portion 310 of the operating part 300. Accordingly, when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100, the locking part 200 may be rotated with the operating part 300 and be separated from the band part 400. In the end, only when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100, the operating part 300 may rotate the locking part 200 to separate the locking part 200 from the band part 400, thereby preventing the locking part 200 and the band part 400 from becoming unfastened due to a malfunction.

[0042] More specifically, as shown in FIG. 2, the operating part 300 may have a predetermined space 330 on one side, and the second engaging portion 310 may be formed at the boundary of the predetermined space 330. For example, the predetermined space 330 of the operating part 300 may be formed in the receding portion 335 formed at the side (two sides) of the operating part 300, and the second engaging portion 310 of the operating part 300 may be formed as a step 337 formed at the boundary of the receding portion 335. Additionally, the first engaging portion 210 formed in a plate shape may be disposed in the predetermined space 330 (the receding portion 335) of the operating part 300. Accordingly, while the operating part 300 is rotated up to the predetermined angle with respect to the base part 100 (see FIGS. 3 and 4), the first engaging portion 210 is relatively moved with respect to the operating part 300 in the predetermined space 330 (the receding portion 335), and the locking part 200 is not rotated. However, when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100 (see FIGS. 5 and 6), the first engaging portion 210 of the locking part 200 engages the second engaging portion 310 (the step 337 formed at the boundary of the receding portion 335) of the operating part 300, and the locking part 200 may be rotated with the operating part 300 and be separated from the band part 400. Meanwhile, the predetermined angle (a malfunction prevention range in which the locking part 200 is not rotated) at which the operating part 300 is rotated is not limited to a particular range, but may be, for example, from 10 to 30, and after the predetermined angle, the maximum angle (an operation range in which the locking part 200 is rotated) at which the operating part 300 is rotated is not limited to a particular range, but may be, for example, from 35 to 50.

[0043] Meanwhile, the locking part 200 is rotatably coupled to the base part 100 by the first rotation axis 220, and the operating part 300 is rotatably coupled to the base part 100 by the second rotation axis 340, wherein the second rotation axis 340 is farther away from the first and second engaging portions 210, 310 (an engagement region) than the first rotation axis 220. Accordingly, because the distance from the second rotation axis 340 of the operating part 300 to the engagement region is larger than the distance from the first rotation axis 220 of the locking part 200 to the engagement region, the quantity of rotation of the operating part 300 is larger than the quantity of rotation of the locking part 200. As described above, because the quantity of rotation of the operating part 300 is larger than the quantity of rotation of the locking part 200, it may be possible to reduce the likelihood that a malfunction will occur in the locking part 200 during the wearer's manipulation of the operating part 300.

[0044] Additionally, as shown in FIG. 3, the operating part 300 may play a role in fastening the locking part 200 with the band part 400 by applying the pressure to the locking part 200. The operating part 300 may apply the pressure to the locking part 200 against the band part 400 by an elastic force of an elastic means 500 before it is rotated with respect to the base part 100. When the locking part 200 is subjected to pressure by the operating part 300, the first toothed portion 410 of the band part 400 and the second toothed portion 230 of the locking part 200 may be coupled to each other, and the locking part 200 may be fastened to the band part 400.

[0045] Specifically, the operating part 300 may have, on one side, the third engaging portion 320 that the first engaging portion 210 of the locking part 200 engages. Here, before the operating part 300 is rotated with respect to the base part 100, the first engaging portion 210 may engage the third engaging portion 320. Accordingly, before the operating part 300 is rotated with respect to the base part 100, the operating part 300 may fasten the locking part 200 with the band part 400 by applying the pressure to the locking part 200.

[0046] More specifically, as shown in FIG. 2, the operating part 300 may have the predetermined space 330 on one side, and the third engaging portion 320 may be formed at the boundary of the predetermined space 330. For example, the predetermined space 330 of the operating part 300 may be formed in the receding portion 335 formed at the side (two sides) of the operating part 300, and the third engaging portion 320 of the operating part 300 may be formed as the step 337 formed at the boundary of the receding portion 335. Additionally, the first engaging portion 210 formed in a plate shape may be disposed in the predetermined space 330 (the receding portion 335) of the operating part 300. Accordingly, before the operating part 300 is rotated with respect to the base part 100 (see FIG. 3), the first engaging portion 210 of the locking part 200 may engage the third engaging portion 320 (the step 337 formed at the boundary of the receding portion 335) of the operating part 300, and the operating part 300 may fasten the locking part 200 with the band part 400 by applying the pressure to the locking part 200.

[0047] Meanwhile, as shown in FIG. 2, the second engaging portion 310 and the third engaging portion 320 may be formed through one receding portion 335 formed at the side (two sides) of the operating part 300. For example, the second engaging portion 310 may be formed as the step 337 formed at the lower boundary of the receding portion 335 formed in the operating part 300, and the third engaging portion 320 may be formed as the step 337 formed at the upper boundary of the receding portion 335 formed in the operating part 300. In this instance, the first engaging portion 210 of the locking part 200 may be disposed in the predetermined space 330 between the second engaging portion 310 and the third engaging portion 320. Accordingly, before the operating part 300 is rotated with respect to the base part 100 (see FIG. 3), the top of the first engaging portion 210 of the locking part 200 may engage the third engaging portion 320 of the operating part 300, and when the operating part 300 is rotated more than the predetermined angle with respect to the base part 100 (see FIGS. 5 and 6), the bottom of the first engaging portion 210 may engage the second engaging portion 310.

[0048] Meanwhile, the operating part 300 may be made of anodized aluminum but is not limited thereto. In this instance, the operating part 300 may have a specific color (for example, red) through the anodizing process.

[0049] Additionally, the helmet buckle may include the elastic means 500 to provide the elastic force to the operating part 300 in a direction toward the band part 400. For example, the elastic means 500 may be a torsion spring, and in this instance, the cylindrical body of the torsion spring 500 may be inserted into the second rotation axis 340 rotatably coupling the operating part 300 to the base part 100. Additionally, one end of the torsion spring 500 may be coupled to an insertion groove 350 of the operating part 300, and the other end of the torsion spring 500 may be supported on the first rotation axis 220 rotatably coupling the locking part 200 to the base part 100. Accordingly, because the other end of the torsion spring 500 is supported on the first rotation axis 220, the force of rotation (elastic force) around the second rotation axis 340 may be provided to the operating part 300 through one end.

[0050] Additionally, a pulling means 600 may be provided at the end of the operating part 300 to allow the wearer to easily manipulate the operating part 300 (see FIG. 1). Accordingly, the wearer may easily rotate the operating part 300 with respect to the base part 100 by pulling the pulling means 600.

[0051] Meanwhile, FIGS. 7A to 7C are top views showing an initial fastening process of the helmet buckle according to an embodiment of the present disclosure. As shown in FIGS. 7A to 7C, a first recessed region 413 where the tooth of the first toothed portion 410 of the band part 400 meets the tooth of the second toothed portion 230 of the locking part 200 for the first time when the band part 400 moves into the base part 100 is narrower in width than a first protruding region 233 where the tooth of the second toothed portion 230 meets the tooth of the first toothed portion 410 of the locking part 200 for the first time when the band part 400 moves into the base part 100 (W1<W2). Additionally, the first recessed region 413 is equal to or larger in width than a second protruding region 235 where the tooth of the second toothed portion 230 meets the tooth of the first toothed portion 410 for the second time when the band part 400 moves into the base part 100 (W1=W3) or (W1>W3). That is, the first recessed region 413 disposed at the frontmost position of the first toothed portion 410 is narrower in width than the first protruding region 233 disposed at the frontmost position of the second toothed portion 230 (W1<W2), and is equal to or larger in width than the second protruding region 235 disposed next to the first protruding region 233 (W1=W3) or (W1>W3). By this configuration, the first protruding region 233 is not fastened to the first recessed region 413 (see FIG. 7B), and the second protruding region 235 is fastened to the first recessed region 413 (see FIG. 7C). Accordingly, the band part 400 and the locking part 200 may be fastened by at least two recessed regions and at least two protruding regions (see FIG. 7C) rather than one recessed region and one protruding region (see FIG. 7B) to achieve firm fastening between the band part 400 and the locking part 200. In this instance, various designs may be used to make the first recessed region 413 smaller in width than the first protruding region 233 (W1<W2), and equal to or larger in width than the second protruding region 235 (W1=W3) or (W1>W3). For example, to limit the width of the first recessed region 413, a protruding portion 413a may protrude from two ends of the first recessed region 413 in the width direction. However, this is provided for illustration purpose and the scope of protection of the present disclosure is not limited thereto.

[0052] While the present disclosure has been hereinabove described in detail through the specific embodiments, this is provided to describe the present disclosure in detail, and the present disclosure is not limited thereto, and it is obvious that modifications or changes may be made by those having ordinary skill in the art within the technical spirit of the present disclosure.

[0053] Such modifications and changes of the present disclosure fall in the scope of the present disclosure, and the scope of protection of the present disclosure will be apparent from the appended claims.

TABLE-US-00001 [Detailed Description of Main Elements] 100: Base part 110: Bottom portion 120: Partition wall 130: Connection portion 200: Locking part 205: Fastening portion 210: First engaging portion 220: First rotation axis 230: Second toothed portion 233: First protruding region 235: Second protruding region 300: Operating part 310: Second engaging portion 320: Third engaging portion 330: Predetermined space 335: Receding portion 337: Step 340: Second rotation axis 350: Insertion groove 400: Band part 410: First toothed portion 413: First recessed region 413a: Protruding portion 500: Elastic means 600: Pulling means

INDUSTRIAL APPLICABILITY

[0054] An aspect of the present disclosure is designed to solve the above-described problem, and therefore the present disclosure provides the helmet buckle in which when the operating part is rotated more than the predetermined angle, the operating part rotates the locking part to separate the locking part from the band part.