Shield fastening means for helmet

Abstract

The present invention relates to a shield fastening means for a helmet. The shield fastening means for a helmet according to the present invention comprises: a base part (100); a slide part (200) which is provided on the base part (100) and slides with respect to the base part (100) toward a fastening part (35) of a shield (30) so as to be fastenable to the fastening part (35); and a rotating part (300) which is provided on the base part (100) and can rotate about a predetermined axis (110) of the base part (100), wherein the slide part (200) slides when the rotating part (300) rotates about the predetermined axis (110).

Description

Shield fastening means for helmets

[0001] The present invention relates to a shield fastening means for a helmet.

[0002]

[0003] Typically, helmets are required to protect the user's head when riding a two-wheeled vehicle at high speeds. These helmets typically feature an opening at the front to ensure the user's forward visibility. Furthermore, the opening may be equipped with an optional shield that can be opened or closed to block wind and dust from entering during operation.

[0004] Meanwhile, in the motorcycle helmet according to the prior art, the shield can be fastened to a ratchet or the like as disclosed in the patent document of the prior art document below.

[0005]

[0006] [Prior Art Literature]

[0007] [Patent Document]

[0008] (Patent Document 1) KR 10-2558430 B1

[0009]

[0010] One aspect of the present invention relates to a shield fastening means for a helmet having a simple fastening structure by having a slide part that is fastened to or separated from the shield according to the rotation of the rotating part.

[0011]

[0012] A shield fastening means for a helmet according to an embodiment of the present invention includes a base portion, a slide portion provided on the base portion and slidable with respect to the base portion in the direction of the fastening portion so as to be fastened to the fastening portion of the shield, and a rotation portion provided on the base portion and rotatable about a predetermined axis of the base portion, and in which the slide portion slides when rotated about the predetermined axis.

[0013] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, when the rotating part is rotated in one direction, the slide part slides in a direction closer to the fastening part, and when the rotating part is rotated in the other direction, the slide part slides in a direction away from the fastening part.

[0014] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a guide protrusion is formed on the slide portion, and a guide groove is formed on the rotation portion into which the guide protrusion is inserted and slides.

[0015] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, the guide groove includes an operating part that extends from a predetermined point toward one end so as to become closer to the predetermined axis.

[0016] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, the guide groove includes an extension portion that extends from the predetermined point to the other end so that the distance to the predetermined axis is constant.

[0017] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a first fastening member extending at a predetermined angle based on the predetermined axis is formed on the rotating part, a second fastening member fastened to the first fastening member is formed on the base part, and the rotating part is arranged on the base part so that the first fastening member and the second fastening member do not overlap, and when the rotating part is rotated thereafter, the first fastening member and the second fastening member overlap and are fastened.

[0018] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a first fastening member extended at a predetermined angle based on the predetermined axis is formed on the rotating part, a second fastening member fastened to the first fastening member is formed on the base part, and when the rotating part is arranged on the base part so that the first fastening member and the second fastening member do not overlap, the guide protrusion is arranged on the extension part, and when the rotating part is rotated thereafter, the guide protrusion moves to the predetermined point, so that the first fastening member and the second fastening member overlap and are fastened.

[0019] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, an elastic part is provided between the base part and the rotating part, and provides elasticity to the rotating part.

[0020] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, an elastic part is provided between the base part and the rotating part, and provides elastic force in one direction to the rotating part.

[0021] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a penetration portion is formed in the base portion where the slide portion is arranged, a support portion that comes into contact with one surface of the slide portion is formed in the penetration portion, and an end of the support portion is a free end.

[0022] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a first fastening member extending at a predetermined angle based on the predetermined axis is formed in the rotating portion, a second fastening member is formed in the base portion, and when the guide protrusion is placed at the predetermined point of the guide groove or the operating portion, the first fastening member and the second fastening member maintain a fastened state.

[0023] In addition, in the shield fastening means for a helmet according to an embodiment of the present invention, a first fastening member extending at a predetermined angle based on the predetermined axis is formed on the rotating part, a second fastening member fastened to the first fastening member is formed on the base part, a first stopper is formed on one side of the rotating part, and a second stopper protruding in the direction of the rotating part is formed on one side of the base part, and when the rotating part is arranged on the base part so that the first fastening member and the second fastening member do not overlap, one side of the rotating part is bent in a direction away from the base part by the second stopper, and thereafter, when the rotating part is rotated, the first fastening member and the second fastening member overlap, and one side of the rotating part that was bent is restored by its own elasticity, and the first stopper is caught on the second stopper.

[0024]

[0025] The features and advantages of the present invention will become more apparent from the following detailed description based on the attached drawings.

[0026] Prior to this, the terms and words used in this specification and claims should not be interpreted in their usual or dictionary meanings, but should be interpreted in the sense and concept that is consistent with the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term to explain his or her own invention in the best way.

[0027]

[0028] By providing a slide part that is fastened or separated from the shield according to the rotation of the rotating part, the shield has the advantage of a simple fastening structure.

[0029]

[0030] Figures 1 and 2 are side views of a helmet equipped with a shield fastening means for a helmet according to an embodiment of the present invention.

[0031] Figure 3 is an exploded perspective view of a shield fastening means for a helmet according to an embodiment of the present invention.

[0032] Figures 4 and 5 are perspective views and side views showing the operation process of a shield fastening means for a helmet according to an embodiment of the present invention.

[0033] Figures 6 and 7 are side views showing the process of assembling the rotating part of the shield fastening means for a helmet according to an embodiment of the present invention to the base part.

[0034] Figures 8 to 10 are perspective views showing the process of assembling the slide part of the shield fastening means for a helmet according to an embodiment of the present invention to the base part, and

[0035] Figures 11 and 12 are side views of a shield fastening means for a helmet according to another embodiment of the present invention.

[0036]

[0037] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In this specification, when reference numerals are given to components in each drawing, it should be noted that, as much as possible, identical components are given the same numerals even if they are shown in different drawings. In addition, terms such as "first," "second," "one end," and "the other end" are used to distinguish one component from another, and the components are not limited by the terms. In the following description of the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0039]

[0040] Figures 1 and 2 are side views of a helmet equipped with a shield fastening means for a helmet according to an embodiment of the present invention.

[0041] As illustrated in FIGS. 1 and 2, the helmet body (10) serves to protect the user's head. This helmet body (10) may be formed of a material capable of absorbing impact. For example, the helmet body (10) may include an outer shell formed of a hard synthetic resin or the like, which has high strength, and an absorbent body formed of expanded polystyrene (EPS) or the like, which has appropriate strength and elasticity, and which is disposed inside the outer shell. The inside of this absorbent body may be provided with pads or the like, which improve the stability of wearing.

[0042] In addition, the shield (30) serves to open and close the opening (20) formed at the front of the helmet body (10), and is rotatably coupled to ratchets (bases (100)) provided on both sides of the helmet body (10), and can rotate from a first position to a second position with respect to the helmet body (10). For example, the first position may mean a position where the shield (30) closes the opening (20) (see FIG. 1), and the second position may mean a position where the shield (30) opens the opening (20) (see FIG. 2). This shield (30) is fastened to the helmet body (10) by a shield fastening means for a helmet according to the present embodiment, and the shield fastening means for a helmet will be described in detail below.

[0043]

[0044] FIG. 3 is an exploded perspective view of a shield fastening means for a helmet according to an embodiment of the present invention, and FIGS. 4 and 5 are perspective views and side views illustrating the operation process of a shield fastening means for a helmet according to an embodiment of the present invention.

[0045] As illustrated in FIGS. 3 to 5, a shield fastening means for a helmet according to an embodiment of the present invention includes a base portion (100), a slide portion (200) provided on the base portion (100) and slidable with respect to the base portion (100) in the direction of the fastening portion (35) so as to be fastened to the fastening portion (35) of the shield (30), and a rotation portion (300) provided on the base portion (100) and rotatable with respect to a predetermined axis (110) of the base portion (100), and when rotated with respect to the predetermined axis (110), the slide portion (200) slides.

[0046]

[0047] The above-mentioned base part (100) may be, for example, a ratchet provided on both sides of the helmet body (10). At this time, a predetermined axis (110) that serves as a rotation axis of the shield (30) and the rotation part (300) may be formed on the base part (100). A fastening projection (33) provided on both ends of the shield (30) may be inserted into this predetermined axis (110). At this time, two fastening portions (35) protruding in a radial direction may be formed on the fastening projections (33) of the shield (30), and these fastening portions (35) are fastened to the slide part (200), and specific details related thereto will be described later.

[0048] Meanwhile, a guide portion (120) extending in an arc shape may be formed on the base portion (100), and a guide protrusion (45) that contacts the guide portion (120) of the base portion (100) may be formed on the shield (30). Accordingly, when the shield (30) rotates, the guide protrusion (45) of the shield (30) contacts the guide portion (120) of the base portion (100) and can be guided by the guide portion (120) of the base portion (100).

[0049]

[0050] The above slide part (200) is connected to the fastening part (35) of the shield (30) to perform the function of fastening the shield (30) to the helmet body (10, for example, the base part (100)). Here, two slide parts (200) may be provided on the mounting part (130) of the base part (100) to correspond to the fastening parts (35) of the shield (30). At this time, the slide part (200) is slidable with respect to the base part (100) in a direction approaching the fastening part (35) of the shield (30) (see FIGS. 4a to 4b) or in a direction away from the fastening part (35) of the shield (30) (see FIGS. 5a to 5b). As illustrated in FIGS. 4A and 4B, when the slide portion (200) is slid in a direction approaching the fastening portion (35) of the shield (30), the slide portion (200) can be fastened to the fastening portion (35) of the shield (30). In this way, when the slide portion (200) is fastened to the fastening portion (35) of the shield (30), the shield (30) can be fastened to the helmet body (10, for example, the base portion (100)). As illustrated in FIGS. 5A and 5B, when the slide portion (200) is slid in a direction away from the fastening portion (35) of the shield (30), the slide portion (200) can be separated from the fastening portion (35) of the shield (30). In this way, when the slide part (200) is separated from the fastening part (35) of the shield (30), the shield (30) can be separated from the helmet body (10, for example, the base part (100)). Meanwhile, a guide protrusion (210) is formed on the slide part (200), and a guide groove (320) into which the guide protrusion (210) is inserted is formed on the rotation part (300), so that the slide part (200) slides while being guided by the guide groove (320) according to the rotation of the rotation part (300). Specific details related to this will be described later.

[0051]

[0052] The above-described rotating part (300) serves to control the sliding of the slide part (200). Here, the rotating part (300) is provided in the base part (100) and can rotate about a predetermined axis (110) of the base part (100). Specifically, the rotating part (300) has a through hole (310, see FIG. 3) formed in the center, and the predetermined axis (110) of the base part (100) is inserted into the through hole (310), so that the rotating part (300) can rotate about the predetermined axis (110) of the base part (100). In this way, when the rotating part (300) rotates about the predetermined axis (110) of the base part (100), the two slide parts (200) can slide simultaneously (see FIGS. 4 and 5). For example, as illustrated in FIG. 4b, when the rotating part (300) is rotated in one direction (clockwise in the drawing), the slide part (200) slides in a direction approaching the fastening part (35), so that the end of the slide part (200) overlaps with the fastening part (35) of the shield (30), and thus the slide part (200) can be fastened to the fastening part (35) of the shield (30). Conversely, as illustrated in FIG. 5b, when the rotating part (300) is rotated in the other direction (counterclockwise in the drawing), the slide part (200) slides in a direction away from the fastening part (35), so that the end of the slide part (200) does not overlap with the fastening part (35) of the shield (30), and thus the slide part (200) can be separated from the fastening part (35) of the shield (30).

[0053] Here, the slide part (200) may be formed with a guide protrusion (210) that protrudes in the direction of the rotation part (300) (perpendicular to the direction in which the slide part (200) slides), and the rotation part (300) may be formed with a guide groove (320) into which the guide protrusion (210) of the slide part (200) is inserted and slides. When the rotation part (300) rotates, the slide part (200) may be slid as the guide protrusion (210) inserted into the guide groove (320) slides along the guide groove (320). That is, due to the structure of the guide groove (320) into which the guide protrusion (210) is inserted, the guide protrusion (210) is guided by the guide groove (320), and the rotational motion of the rotation part (300) may be converted into the translational motion of the slide part (200).

[0054] Specifically, the guide groove (320) of the rotating part (300) may include an operating part (323) that extends from a predetermined point (321) to become closer to the predetermined axis (110) as it goes. Accordingly, when the rotating part (300) is rotated in one direction (clockwise in the drawing) (see FIGS. 4a to 4b), the slide part (200) can slide in a direction approaching the fastening part (35). Conversely, when the rotating part (300) is rotated in the other direction (counterclockwise in the drawing) (see FIGS. 5b to 5b), the slide part (200) can slide in a direction away from the fastening part (35).

[0055] Meanwhile, an elastic member (400) may be provided between the base member (100) and the rotating member (300). Here, the elastic member (400) may be, for example, a compression spring. This elastic member (400) provides elastic force to the rotating member (300) in one direction (clockwise in the drawing). Therefore, if no external force is applied to the rotating member (300), as illustrated in FIG. 4b, the rotating member (300) is rotated in one direction (clockwise in the drawing) by the elastic force of the elastic member (400), so that the guide protrusion (210) of the slide member (200) is arranged at one end of the guide groove (320), and as a result, the slide member (200) can maintain a state in which it is fastened to the fastening member (35) of the shield (30). However, when an external force greater than the elastic force of the elastic part (400) is applied to the rotating part (300) in another direction (counterclockwise in the drawing) (see FIG. 5b), the elastic part (400) is compressed, and the rotating part (300) is rotated in the other direction (counterclockwise in the drawing), so that the guide protrusion (210) of the slide part (200) is positioned at a predetermined point (321) of the guide groove (320), and as a result, the slide part (200) can be separated from the fastening part (35) of the shield (30).

[0056] As described above, one elastic member (400) is provided between the base member (100) and the rotation member (300), and one rotation member (300) can simultaneously control the sliding of two slide members (200). Consequently, by providing elastic force to one rotation member (300) with one elastic member (400), force in the direction of fastening to the fastening member (35) of the shield (30) can be provided to the two slide members (200). Therefore, the shield fastening means according to the present embodiment has the advantage of being able to provide force to two slide members (200) with only one elastic member (400).

[0057] Additionally, the rotating part (300) may be formed with a manipulation part (330) that can be manipulated by the wearer. When the wearer presses the manipulation part (330) with an external force greater than the elastic force of the elastic part (400) (see FIG. 5), the rotating part (300) rotates in the other direction (counterclockwise in the drawing), thereby allowing the slide part (200) to be separated from the fastening part (35) of the shield (30).

[0058]

[0059] Meanwhile, the rotating part (300) and the base part (100) can be fastened by first and second fastening members (340, 140). Specifically, the rotating part (300) can be formed with a first fastening member (340) extending at a predetermined angle based on a predetermined axis (110) along the outer circumference thereof. At this time, two first fastening members (340) can be formed on the outer circumference of the rotating part (300) so as to face each other based on the predetermined axis (110). To correspond to the first fastening member (340), the base part (100) can be formed with a second fastening member (140) fastened to the first fastening member (340). At this time, two second fastening members (140) can be formed on the base part (100) so as to face each other so as to come into contact with the two first fastening members (340). Specifically, as illustrated in FIGS. 4b and 5b, one surface of the first fastening member (340) and one surface of the second fastening member (140) are arranged to face each other, so that when the rotating part (300) rotates, the first fastening member (340) can slide relative to the second fastening member (140) while being guided by the second fastening member (140). At this time, the guide protrusion (210) of the slide part (200) can slide in the operating part (323) of the guide groove (320) of the rotating part (300).

[0060] Meanwhile, when the guide protrusion (210) is placed at a predetermined point (321) of the guide groove (320) or the operating portion (323), the first fastening member (340) and the second fastening member (140) can maintain a fastened state. That is, when the rotating portion (300) rotates and moves the slide portion (200), the first fastening member (340) and the second fastening member (140) always maintain a fastened state, and as a result, the rotating portion (300) and the base portion (100) can maintain a stably fastened state. However, when the rotating part (300) is assembled to the base part (100), the guide protrusion (210) may deviate from the predetermined point (321) of the guide groove (320) or the operating part (323), and the first fastening member (340) and the second fastening member (140) may not overlap (may not be fastened), and details related to this will be described later.

[0061]

[0062] FIGS. 6 and 7 are side views illustrating a process of assembling a rotating part of a shield fastening means for a helmet according to an embodiment of the present invention to a base part. Referring to these, the process of assembling a rotating part (300) to a base part (100) will be examined.

[0063] The guide groove (320) of the rotating part (300) may include an extension part (325) that extends in an arc shape from a predetermined point (321) to the other end (in the opposite direction to the operating part (323)) so that the distance to the predetermined axis (110) is constant. That is, the guide groove (320) may include an extension part (325) that extends a constant distance from the predetermined axis (110) in the opposite direction to the operating part (323). In addition, a first stopper (360) may be formed on one side of the rotating part (300) (for example, the operating part (330)), and a second stopper (190) that protrudes in the direction of the rotating part (300) (outward direction) may be formed on one side of the base part (100).

[0064] As illustrated in Fig. 6, when the rotary part (300) is arranged on the base part (100) so that the first fastening member (340) and the second fastening member (140) do not overlap, the guide protrusion (210) of the slide part (200) can be arranged on the extension part (325) of the guide groove (320) of the rotary part (300). At this time, one side (e.g., the operating part (330)) of the rotary part (300) can be bent in a direction away from the base part (100) by the protruding second stopper (190) of the base part (100).

[0065] Thereafter, as illustrated in FIG. 7, when the rotating part (300) is rotated, the guide protrusion (210) of the slide part (200) slides along the extension (325) of the guide groove (320) of the rotating part (300) and moves to a predetermined point (321) of the guide groove (320), so that the first fastening member (340) and the second fastening member (140) can overlap and be fastened. At this time, one side of the rotating part (300) that was bent (for example, the operating part (330)) can be restored toward the base part (100) by its own elasticity, and the first stopper (360) of the rotating part (300) can be caught on the second stopper (190) of the base part (100). Accordingly, the rotation of the rotating member (300) is limited in the direction in which the first fastening member (340) and the second fastening member (140) are separated, thereby preventing the first fastening member (340) and the second fastening member (140) from being arbitrarily separated. Ultimately, the rotating member (300) can be prevented from being separated from the base member (100) by the first stopper (360) being positioned to face the second stopper (190) due to the elasticity of one side of the rotating member (300) (e.g., the operating member (330)).

[0066] Meanwhile, as described above, even when the first fastening member (340) and the second fastening member (140) are not overlapped (see FIG. 6), the guide projection (210) of the slide portion (200) can be inserted into the guide groove (320, extension portion (325)) of the rotation portion (300), so there is an advantage in that the rotation portion (300) can be assembled to the base portion (100) by inserting the guide projection (210) into the guide groove (320).

[0067]

[0068] FIGS. 8 to 10 are perspective views illustrating a process in which a slide portion of a shield fastening means for a helmet according to an embodiment of the present invention is assembled to a base portion.

[0069] As illustrated in FIG. 8, a through-hole (150) in which a slide portion (200) is disposed may be formed in the base portion (100). For example, one through-hole (150) in which one slide portion (200) is disposed may be formed in the base portion (100). At this time, a support portion (160) that comes into contact with one surface of the slide portion (200) may be formed in the through-hole (150). This support portion (160) may serve to support the slide portion (200) when the slide portion (200) slides. More specifically, the support portion (160) extends from a predetermined axis (110) of the base portion (100), and one end is supported by the predetermined axis (110) of the base portion (100), while the opposite end is a free end (160a) that is not supported or restrained in any way. Accordingly, as illustrated in FIG. 9, since the support portion (160) can have its free end (160a) bent by its own elasticity, when one slide portion (200) is assembled to the base portion (100), the slide portion (200) can be inserted through the space between the free end (160a) of the support portion (160) and the base portion (100) that is created when the free end (160a) of the support portion (160) is bent, and can be coupled to the base portion (100). As illustrated in FIG. 10, after the slide portion (200) is inserted, the support portion (160) can be restored to its original state and support the sliding of the slide portion (200). In the case where the support portion (160) having the above-described free end (160a) is not formed in the base portion (100), an independent component and fastening structure for supporting the slide portion (200) on the base portion (100) are required in order for the slide portion (200) to be assembled to the base portion (100), which causes a problem in that the volume of the base portion (100) increases. However, the shield fastening means for a helmet according to the present embodiment has the advantage of minimizing the space for assembling the slide portion (200) to the base portion (100) by forming the support portion (160) having the free end (160a) on the base portion (100), and consequently reducing the volume of the base portion (100).

[0070]

[0071] Figures 11 and 12 are side views of a shield fastening means for a helmet according to another embodiment of the present invention.

[0072] As illustrated in FIGS. 11 and 12, the shield fastening means for a helmet according to the present embodiment has the same basic configuration as the shield fastening means for a helmet according to the previous embodiment, but only some configurations, such as the guide groove (320), are different, so the description will focus on the different configurations.

[0073] According to the present embodiment, a shield fastening means for a helmet may have an expansion portion (325a) formed in an extension portion (325) of a guide groove (320). Here, the expansion portion (325a) may be formed in a circularly expanded shape of the extension portion (325). As illustrated in FIG. 12, when the rotating portion (300) is fastened to the base portion (100), the expansion portion (325a) may be aligned with a fastening hole (180) formed in the base portion (100). Accordingly, a screw or the like may be inserted through the expansion portion (325a) to fasten it to the fastening hole (180). Additionally, a guide auxiliary groove (170) extending in an arc shape may be formed in the base portion (100), and a guide auxiliary protrusion (350) may be formed on one side of the rotating portion (300) (e.g., the operating portion (330)). When the rotating part (300) is fastened to the base part (100), the guide auxiliary protrusion (350) of the rotating part (300) can be inserted into the guide auxiliary groove (170) of the base part (100). Therefore, when the rotating part (300) rotates, the guide auxiliary protrusion (350) of the rotating part (300) can slide while being guided by the guide auxiliary groove (170) of the base part (100). Consequently, the rotating part (300) can rotate stably while being guided by the guide auxiliary protrusion (350) and the guide auxiliary groove (170).

[0074]

[0075] Although the present invention has been described in detail through specific examples, this is intended to specifically explain the present invention, and the present invention is not limited thereto, and it is clear that modifications and improvements can be made by those skilled in the art within the technical spirit of the present invention.

[0076]

[0077] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

[0078]

[0079] [Explanation of symbols]

[0080] 10: Helmet body 20: Opening

[0081] 30: Shield 33: Fastening protrusion

[0082] 35: Fastening part 45: Guide protrusion

[0083] 100: Base 110: Fixed axis

[0084] 120: Guide section 130: Fixing section

[0085] 140: Second fastening member 150: Penetration portion

[0086] 160: Support 160a: Free end

[0087] 200: Slide part 210: Guide protrusion

[0088] 300: Rotating part ` 310: Through hole

[0089] 320: Guide Home 321: Designated Location

[0090] 323: Operating part 325: Extension part

[0091] 330: Operating part 340: First fastening member

[0092] 400: Elasticity

Claims

1. Base section; A slide part provided on the base part and sliding relative to the base part in the direction of the fastening part so as to be fastened to the fastening part of the shield; and A rotating part provided on the base part, capable of rotating about a predetermined axis of the base part, and causing the slide part to slide when rotated about the predetermined axis; A shield fastening means for a helmet including:

2. In claim 1, When the above rotating part rotates in one direction, the slide part slides in a direction closer to the fastening part, A helmet shield fastening means in which the slide part slides away from the fastening part when the rotating part is rotated in the other direction.

3. In claim 1, A guide protrusion is formed on the above slide part, A shield fastening means for a helmet in which a guide groove is formed by inserting the guide protrusion into the above rotating part and sliding.

4. In claim 3, The above guide home is a shield fastening means for a helmet including an operating part that extends from a predetermined point to get closer to the predetermined axis as it goes forward.

5. In claim 4, The above guide home is a shield fastening means for a helmet including an extension portion that extends from the above predetermined point to the other end so that the distance to the above predetermined axis is constant.

6. In claim 1, In the above rotating part, a first fastening member is formed that extends at a predetermined angle based on the predetermined axis, A second fastening member that is fastened to the first fastening member is formed on the above base portion, A shield fastening means for a helmet in which the rotating member is arranged on the base portion so that the first fastening member and the second fastening member do not overlap, and then when the rotating member is rotated, the first fastening member and the second fastening member overlap and are fastened.

7. In claim 5, In the above rotating part, a first fastening member is formed that extends at a predetermined angle based on the predetermined axis, A second fastening member that is fastened to the first fastening member is formed on the above base portion, A shield fastening means for a helmet in which, when the rotating member is arranged on the base portion so that the first fastening member and the second fastening member do not overlap, the guide protrusion is arranged on the extension portion, and then, when the rotating member is rotated, the guide protrusion moves to the predetermined point, so that the first fastening member and the second fastening member overlap and are fastened.

8. In claim 1, An elastic member provided between the base member and the rotating member to provide elasticity to the rotating member; A shield fastening means for a helmet further including:

9. In claim 2, An elastic member provided between the base member and the rotating member to provide elastic force in one direction to the rotating member; A shield fastening means for a helmet further including:

10. In claim 1, A penetration portion is formed in the above base portion where the slide portion is placed, A support portion that comes into contact with one surface of the slide portion is formed in the above penetration portion, The end of the above support is a shield fastening means for a helmet with a free end.

11. In claim 4, In the above rotating part, a first fastening member is formed that extends at a predetermined angle based on the predetermined axis, A second fastening member is formed on the above base portion, A shield fastening means for a helmet, wherein when the guide protrusion is placed at the predetermined point of the guide groove or the operating part, the first fastening member and the second fastening member maintain a fastened state.

12. In claim 1, In the above rotating part, a first fastening member is formed that extends at a predetermined angle based on the predetermined axis, A second fastening member that is fastened to the first fastening member is formed on the above base portion, A first stopper is formed on one side of the above rotating part, and a second stopper protruding in the direction of the above rotating part is formed on one side of the above base member. When the rotating member is arranged on the base portion so that the first fastening member and the second fastening member do not overlap, one side of the rotating member is bent away from the base portion by the second stopper, Thereafter, when the rotating part is rotated, the first fastening member and the second fastening member overlap, and one side of the rotating part that was bent is restored by its own elasticity, and the first stopper is fastened to the second stopper.

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