Rotation mechanism for helmet

Abstract

The present invention relates to a rotation mechanism for a helmet. The rotation mechanism for a helmet according to the present invention is provided in a helmet comprising a helmet body (10) and a shield (30) rotatably coupled to the helmet body (10), and comprises: an arm (230) which rotates in conjunction with a chin guard (20); and a support part (300) which rotatably supports the shield (30) and is detachably fastened to the arm (230).

Description

Rotating mechanism for helmets

[0001] The present invention relates to a rotation mechanism for a helmet.

[0002]

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

[0004] Meanwhile, a helmet according to the prior art is equipped with a chin guard to protect the wearer's chin, as disclosed in the patent document of the prior art document below.

[0005]

[0006] [Prior Art Literature]

[0007] [Patent Document]

[0008] (Patent Document 1) KR10-2014-0001141 A

[0009]

[0010] One aspect of the present invention relates to a rotation mechanism for a helmet capable of stably controlling the rotation of a shield.

[0011]

[0012] A rotation mechanism for a helmet according to an embodiment of the present invention is provided in a helmet including a helmet body and a shield rotatably connected to the helmet body, and includes an arm that rotates in conjunction with the rotation of a chin guard, and a support portion that rotatably supports the shield and is detachably connected to the arm.

[0013] Here, in the rotation mechanism for a helmet according to an embodiment of the present invention, a fastening part is formed on the arm, and the support part is fastened to the fastening part.

[0014] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the fastening portion is a recessed portion that is recessed in a direction away from the shield.

[0015] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, an auxiliary fastening part is formed on the upper side of the fastening part in the arm, and when the shield is rotated in a direction in which the support part is opened while being fastened to the fastening part, the support part is fastened to the auxiliary fastening part.

[0016] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, a sliding area is formed on the upper side of the fastening portion in the arm, and when the support portion is rotated in a direction in which the shield is opened while being fastened to the fastening portion, the support portion slides along the sliding area.

[0017] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, when the arm is rotated while the support part is fastened to the fastening part, the support part rotates together with the arm.

[0018] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, when the arm is rotated while the support part is separated from the fastening part, the support part is fastened to the fastening part.

[0019] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the support member includes a rotation member that rotates with respect to a base member provided in the helmet body, and a contact member that is provided on the rotation member and contacts the arm and is detachably fastened to the arm.

[0020] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the support member further includes an elastic member that provides elastic force to the contact member in the arm direction.

[0021] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the contact member is formed in a cylindrical shape, and when the support part rotates, the contact member comes into contact with the arm and rotates.

[0022] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the contact member is elastically deformed.

[0023] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, a guide portion for guiding the contact member is formed on the base member, and after the support member is separated from the arm, the contact member slides along the guide portion.

[0024] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, a fixing part to which the contact member is fixed is formed at the end of the guide part.

[0025] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, a pinion gear is formed in the contact member, and a rack gear is formed in the guide part, so that when the contact member slides along the guide part, the contact member moves and rotates along the guide part.

[0026] At this time, in the rotation mechanism for a helmet according to an embodiment of the present invention, the support member includes a guide means for guiding the contact member so that the contact member can move in a direction away from or toward the arm.

[0027]

[0028] The features and advantages of the present invention will become more apparent from the following detailed description based on the attached drawings.

[0029] 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.

[0030]

[0031] According to the present invention, there is an advantage in that the rotation of the shield can be stably controlled.

[0032]

[0033] Figure 1 is a side view of a helmet equipped with a chin guard rotation mechanism and a helmet rotation mechanism according to an embodiment of the present invention;

[0034] Figure 2 is an exploded perspective view of a chin guard rotation mechanism and a helmet rotation mechanism according to an embodiment of the present invention.

[0035] Figures 3 to 7 are side views illustrating the process of operating a helmet equipped with a chin guard rotation mechanism and a helmet rotation mechanism according to an embodiment of the present invention, and a side view illustrating the process of operating a chin guard rotation mechanism, and

[0036] FIGS. 8 to 16 are side views illustrating the process of operating a helmet equipped with a chin guard rotation mechanism and a helmet rotation mechanism according to an embodiment of the present invention, and side views illustrating the process of operating a helmet rotation mechanism.

[0037]

[0038] 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 far as possible, identical components are given the same numerals even if they are shown in different drawings. Furthermore, terms such as "first," "second," etc. are used to distinguish one component from another, and the components are not limited by these 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.

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0040]

[0041] FIG. 1 is a side view of a helmet equipped with a chin guard rotation mechanism and a helmet rotation mechanism according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the chin guard rotation mechanism and the helmet rotation mechanism according to an embodiment of the present invention.

[0042] As illustrated in FIGS. 1 and 2, a rotation mechanism for a helmet according to the present embodiment is provided in a helmet including a helmet body (10) and a shield (30) rotatably connected to the helmet body (10), and includes an arm (230) that rotates in conjunction with the rotation of the chin guard (20), and a support member (300) that rotatably supports the shield (30) and is detachably connected to the arm (230).

[0043]

[0044] Basically, the helmet body (10) serves to protect the wearer'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 placed inside the outer shell. The absorbent body may be provided with pads or the like to enhance the stability of wearing.

[0045] In addition, the chin guard (20) serves to protect the wearer's chin, and can be extended in an arc shape so that it can be positioned in front of the wearer's chin as a whole. At this time, the chin guard (20) is rotatably connected at both ends to both sides of the helmet body (10) (e.g., ratchet (40)) and can rotate from a first predetermined position to a third predetermined position. For example, the first predetermined position refers to a position (Full Face Mode) when the chin guard (20) is positioned in front of the wearer's chin (see FIG. 3a), the second predetermined position refers to a position (Wearing Mode) when the chin guard (20) is positioned above the helmet body (10) (see FIG. 6a), and the third predetermined position may refer to a position (Open Face Mode) when the chin guard (20) is positioned at the rear of the helmet body (10) (see FIG. 7a).

[0046] And, the shield (30) serves to open and close the opening formed in the front of the helmet body (10), and is rotatably coupled to both sides of the helmet body (10) (e.g., ratchet (40)), and rotates with respect to the helmet body (10) and can rotate from a first position to a second position. For example, the first position may mean a position where the shield (30) closes the opening (see FIG. 3a), and the second position may mean a position where the shield (30) opens the opening (see FIG. 4a).

[0047] The above-described chin guard (20) and shield (30) are rotated in conjunction with the chin guard rotation mechanism (100) according to the present embodiment. The chin guard rotation mechanism (100) will be described in detail below.

[0048]

[0049] As illustrated in FIGS. 3A to 4A, when the chin guard (20) is rotated from the front of the wearer's chin to the helmet body (10) at a first predetermined angle (A), the shield (30) can also be rotated upwards to open the opening. That is, when the chin guard (20) is rotated from the first predetermined position (Full Face Mode) by the first predetermined angle (A), the shield (30) can be rotated from the first position (opening closed position) to the second position (opening open position).

[0050] Next, as illustrated in FIGS. 5A to 6A, when the chin guard (20) is rotated from a first predetermined angle (A) to a third predetermined angle (C) greater than the first predetermined angle (A) with respect to the helmet body (10), the shield (30) may remain stationary without being rotated. That is, while the chin guard (20) is rotated to the second predetermined position (Wearing Mode), the shield (30) may be maintained at the second position (open position).

[0051] Next, as illustrated in FIG. 7a, when the chin guard (20) is rotated to a second predetermined angle (B) greater than the first and third predetermined angles (A, C) with respect to the helmet body (10), the shield (30) can be rotated downward to close the opening. That is, when the chin guard (20) is rotated to the third predetermined position (Open Face Mode), the shield (30) can be rotated to the first position (open portion closed position).

[0052] However, it is not necessary that the shield (30) rotates when the chin guard (20) rotates. When the shield (30) rotates downward and the opening is closed, the chin guard (20) may rotate to a second predetermined angle (B) with respect to the helmet body (10). That is, when the shield (30) rotates from the second position (opening position) to the first position (opening position), the chin guard (20) may rotate to a third predetermined position (Open Face Mode).

[0053] Ultimately, since the chin guard (20) and the shield (30) are linked and rotated, when the chin guard (20) is rotated, the shield (30) is rotated, and when the chin guard (20) is in the second predetermined position (Wearing Mode, see FIG. 6a), the shield (30) is in the second position (open position), making it easy for the wearer to wear the helmet.

[0054] In addition, since the chin guard (20) and the shield (30) are rotated in conjunction with each other, when the shield (30) is rotated downward while the chin guard (20) is positioned at the top (when the shield (30) is rotated from the second position (open part open position) to the first position (open part closed position) (see FIGS. 6a to 7a)), the chin guard (20) can automatically rotate to the third predetermined position (Open Face Mode) at the rear of the helmet body (10).

[0055] As illustrated in FIG. 2, the chin guard rotation mechanism (100) may be included, for example, within a ratchet (40), and may basically include a link (200) and an arm (230) that rotate with respect to the helmet body (10, ratchet (40)). Specifically, the link (200) may have one side coupled to the chin guard (20), and the arm (230) may support the shield (30) so that the shield (30) rotates. That is, the link (200) is coupled to the chin guard (20), and the arm (230) supports the shield (30), and at this time, the link (200) and the arm (230) rotate in conjunction with each other, so that the chin guard (20) and the shield (30) can rotate in conjunction with each other.

[0056] More specifically, the link (200) may include a first link (210) and a second link (220). Here, the end of the chin guard (20) (e.g., the connecting hole (25)) is simultaneously connected to one side of the first link (210) and one side of the second link (220).

[0057] Meanwhile, the other side of the first link (210) rotates based on the first rotation axis (211) provided in the ratchet (40), and the other side of the second link (220) rotates based on the second rotation axis (221, different from the first rotation axis (211)) provided in the ratchet (40). At this time, since one side of the first link (210) and one side of the second link (220) are simultaneously coupled to the end of the chin guard (20), the first link (210) and the second link (220) can rotate in conjunction with each other as the chin guard (20) rotates.

[0058] In addition, the arm (230) is formed with a sliding portion (240) extended to be recessed along the longitudinal direction on one side, and a connecting portion (213) formed to protrude at the end of the first link (210) is inserted into the sliding portion (240) of the arm (230) and is slidable along the sliding portion (240). Specifically, as the chin guard (20) rotates, the first link (210) rotates around the first rotation axis (211), and the connecting portion (213) of the first link (210) can slide along the sliding portion (240). More specifically, the sliding portion (240) may include a first sliding portion (240a) and a second sliding portion (240b). Here, the first sliding portion (240a) extends in an arc shape, and the second sliding portion (240b) extends in an arc shape from the end of the first sliding portion (240a). At this time, the center of the arc shape of the first sliding part (240a) and the center of the arc shape of the second sliding part (240b) are different from each other. Therefore, the point where the first sliding part (240a) and the second sliding part (240b) meet can form a bent shape. Ultimately, as the chin guard (20) rotates, the connecting part (213) of the first link (210) can slide along the first sliding part (240a), then slide along the second sliding part (240b), and finally slide along the first sliding part (240a) again.

[0059] Meanwhile, a support member (300) may be arranged on the upper side of one side of the arm (230). At this time, a shield (30) is coupled to the support member (300), and the support member (300) may be rotated while being guided by a ratchet (40). In addition, the support member (300) may have a contact member (320) that is coupled to a fastening member (235) of the arm (230). Accordingly, when the arm (230) is rotated, the support member (300) may also be rotated together, and as a result, the shield (30) supported by the support member (300) and the chin guard (20) that is rotated in conjunction with the arm (230) may be rotated together. Meanwhile, the arm (230) may be rotated in the vertical direction based on the rotation member (260, formed on the ratchet (40)).

[0060] The operational relationship of the first link (210), second link (220), and arm (230) described above is specifically as follows.

[0061] As shown in FIGS. 3 and 4, when the chin guard (20) is rotated from the front of the wearer's chin to a first predetermined angle (A) with respect to the helmet body (10), and the shield (30) is rotated upward, the connecting portion (213) of the first link (210) can slide along the first sliding portion (240a) of the arm (230). Specifically, as the chin guard (20) rotates in one direction (clockwise), the first link (210) and the second link (220) coupled to the chin guard (20) rotate in the other direction (counterclockwise), and as the coupling portion (213) of the first link (210) slides along the first sliding portion (240a) of the arm (230), the arm (230) rotates in one direction (clockwise), so that the support portion (300) coupled to the arm (230) rotates, and as a result, the shield (30) supported on the support portion (300) rotates upward (in one direction). As a result, when the chin guard (20) rotates by a first predetermined angle (A) from a first predetermined position (Full Face Mode), the shield (30) can rotate from a first position (open portion closed position) to a second position (open portion open position).

[0062] As illustrated in FIGS. 5 and 6, when the chin guard (20) is rotated from a first predetermined angle (A) to a third predetermined angle (C) with respect to the helmet body (10) and the shield (30) is not rotated, the coupling portion (213) of the first link (210) can slide along the second sliding portion (240b) of the arm (230). Specifically, as the chin guard (20) is rotated in one direction (clockwise), the first link (210) and the second link (220) coupled to the chin guard (20) are rotated in the other direction (counterclockwise), and the coupling portion (213) of the first link (210) slides along the second sliding portion (240b) of the arm (230) (see FIG. 5b). Thereafter, as the chin guard (20) is further rotated in one direction (clockwise), the first link (210) and the second link (220) coupled to the chin guard (20) are rotated in one direction (clockwise) and the other direction (counterclockwise), respectively, and the coupling portion (213) of the first link (210) slides along the second sliding portion (240b) of the arm (230) (see FIG. 6b). Ultimately, the coupling portion (213) of the first link (210) slides from one end (the end connected to the first sliding portion (240a)) of the second sliding portion (240b) of the arm (230) to the other end (see FIG. 5b), and then slides from the other end to the first end of the second sliding portion (240b) (see FIG. 6b). At this time, the radius of curvature of the second sliding portion (240b) may correspond to the distance between the coupling portion (213) and the first rotation axis (211). Therefore, while the coupling portion (213) of the first link (210) moves along both ends of the second sliding portion (240b), the arm (230) does not rotate, and accordingly, the shield (30) supported on the arm (230) also does not rotate. The support portion (300) fastened to the arm (230) also does not rotate, and consequently, the shield (30) supported on the support portion (300) also does not rotate. As a result, while the chin guard (20) rotates to the second predetermined position (Wearing Mode), the shield (30) can be maintained at the second position (open position).

[0063] As illustrated in FIG. 7, when the chin guard (20) is rotated from the third predetermined angle (C) to the second predetermined angle (B) with respect to the helmet body (10), and the shield (30) is rotated downward, the connecting portion (213) of the first link (210) can slide along the first sliding portion (240a) of the arm (230). Specifically, as the chin guard (20) rotates in one direction (clockwise), the first link (210) and the second link (220) coupled to the chin guard (20) rotate in one direction (clockwise) (however, the angle at which the second link (220) rotates is smaller than that of the first link (210), and the coupling portion (213) of the first link (210) slides along the first sliding portion (240a) of the arm (230), while the arm (230) rotates in the other direction (counterclockwise), so that the support portion (300) coupled to the arm (230) rotates, and as a result, the shield (30) supported by the support portion (300) rotates downward (in the other direction). Finally, when the chin guard (20) is rotated from the second predetermined position (Wearing Mode) to the third predetermined position (Open Face Mode), the shield (30) can be rotated to the first position (open part closed position).

[0064] However, it is not necessary that the chin guard (20) rotates and the shield (30) rotates downward, and the shield (30) may rotate downward, and the chin guard (20) may rotate. That is, when the shield (30) rotates downward and the chin guard (20) rotates to a second predetermined angle (B) with respect to the helmet body (10), the connecting portion (213) of the first link (210) can slide along the first sliding portion (240a) of the arm (230). Specifically, as the shield (30) rotates in the other direction (counterclockwise), the support portion (300) on which the shield (30) is supported rotates, and the arm (230) connected to the support portion (300) also rotates in the other direction (counterclockwise). At this time, as the coupling portion (213) of the first link (210) slides along the first sliding portion (240a) of the arm (230), the first link (210) and the second link (220) rotate in one direction (clockwise), and accordingly, the chin guard (20) coupled to the first link (210) and the second link (220) can rotate in one direction (clockwise). Consequently, when the shield (30) rotates from the second position (open portion open position) to the first position (open portion closed position), the chin guard (20) can rotate from the second predetermined position (Wearing Mode) to the third predetermined position (Open Face Mode).

[0065] In general, one side of the first link (210) and one side of the second link (220) coupled to the chin guard (20) are reversed as the chin guard (20) rotates. Specifically, as the chin guard (20) rotates with respect to the helmet body (10) from the front of the wearer's chin, one side of the first link (210) may be positioned in front of one side of the second link (220) (see FIGS. 3b and 4b), then positioned above one side of the second link (220) (see FIGS. 5b and 6b), and then positioned rearward of one side of the second link (220) (see FIG. 7b).

[0066] Meanwhile, in order to guide the path along which one side of the first link (210) and one side of the second link (220) move, a guide hole (500) may be formed on the front of the ratchet (40). Specifically, the guide hole (500) may include a first guide hole (510) and a second guide hole (520). Here, the first guide hole (510) serves to guide the path along which one side of the first link (210) moves, and the second guide hole (520) serves to guide the path along which one side of the second link (220) moves. Accordingly, the radius of curvature of the first guide hole (510) may correspond to the distance between one side of the first link (210) and the first rotation axis (211), and the radius of curvature of the second guide hole (520) may correspond to the distance between one side of the second link (220) and the second rotation axis (221).

[0067]

[0068] Below, the rotation mechanism for the helmet related to the rotation of the shield (30) is specifically described.

[0069] As illustrated in FIG. 2 and FIG. 8b, a rotation mechanism for a helmet according to an embodiment of the present invention includes an arm (230) and a support member (300).

[0070] Here, the arm (230) can rotate in conjunction with the rotation of the chin guard (20) together with the link (200) as described above. In addition, the support member (300) supports the shield (30) so as to be rotatable, and can be detachably fastened to the arm (230). At this time, a fastening member (235) is formed on the arm (230), and the support member (300) can be fastened to the fastening member (235) of the arm (230). For example, the fastening member (235) can be a recessed member that is sunken in a direction away from the shield (30). Therefore, by inserting one side (contact member (320)) of the support member (300) into the recessed member (235), the support member (300) can be fastened to the arm (230). Specifically, the support member (300) may include a rotation member (310), a contact member (320), and an elastic member (330). Here, the rotation member (310) may be rotated with respect to a base member (e.g., a ratchet (40)) provided on the helmet body (10). For example, a rotation guide hole (45) extending in an arc shape is formed in the base member (e.g., the ratchet (40)), and when one side of the rotation member (310) slides along the rotation guide hole (45), the rotation member (310) may be rotated. At this time, since the shield (30) is coupled to the rotation member (310), when the rotation member (310) is rotated with respect to the base member (e.g., the ratchet (40)), the shield (30) may also be rotated up and down with respect to the helmet body (10). In addition, the contact member (320) may be provided on the rotation member (310) to contact the arm (230) and be detachably fastened to the arm (230). For example, the contact member (320) may be inserted into and fastened to the fastening portion (235, recessed portion) of the arm (230). At this time, the contact member (320) is formed in a cylindrical shape, so that when the rotation member (310) of the support member (300) is rotated (see FIGS. 8 to 10), the contact member (320) may come into contact with the arm (230) and rotate on its own.In this way, when the rotating member (310) of the support member (300) rotates, the contact member (320) contacts the arm (230) and rotates, so that the support member (300) can slide along the arm (230) without generating frictional force. In addition, the contact member (320) can be elastically deformed. For example, the contact member (320) can be formed of an elastomer. Therefore, even if the contact member (320) is pressed toward the fastening member (235) or the guide member (340) by the elastic force of the elastic member (330) and the contact member (320) hits the fastening member (235) or the guide member (340), there is an advantage in that the contact member (320) absorbs the impact as it elastically deforms and thus no noise is generated. In addition, when the support member (300) is rotated while the contact member (320) is inserted into the fastening portion (235, recessed portion) of the arm (230), the contact member (320) is elastically deformed (the contact member (320) is compressed), and the contact member (320) can be separated from the fastening portion (235, recessed portion) of the arm (230). Meanwhile, a guide portion (340) that guides the contact member (320) may be formed in the base member (ratchet (40)). At this time, the guide portion (340) may be formed as a hole extending in an arc shape in the base member (ratchet (40)). Accordingly, as illustrated in FIG. 11b, after the support member (300) is separated from the arm (230) (after the contact member (320) is separated from the fastening portion (235, recessed portion) of the arm (230), the contact member (320) can be brought into contact with the side wall of the guide member (340) and can slide along the guide member (340). At this time, a pinion gear (323) may be formed on the contact member (320), and a rack gear (343) coupled to the pinion gear (323) of the contact member (320) may be formed on the guide member (340). Therefore, when the contact member (320) is slid along the guide member (340), the contact member (320) can be moved along the guide member (340) and rotated by the rack and pinion coupling.Meanwhile, as illustrated in FIG. 12b, a fixing portion (345) to which a contact member (320) is fixed may be formed at the end of the guide portion (340). Here, the fixing portion (345) is formed to be recessed in a direction away from the shield (30), so that the contact member (320) can be fixed by being inserted into the fixing portion (345). In this way, when the contact member (320) is fixed to the fixing portion (345), the support portion (300) can be fixed, and ultimately, the shield (30) can also be fixed. In addition, the elastic member (330) provides elastic force to the contact member (320) in the direction of the arm (230) (or in the direction of the side wall of the guide portion (340), and may be, for example, a compression spring. In this way, since the elastic member (330) provides elastic force to the contact member (320) in the direction of the arm (230), when the contact member (320) is inserted into the fastening portion (235, recessed portion) of the arm (230) (see FIG. 8b), the contact member (320) is fastened to the fastening portion (235, recessed portion) of the arm (230) by the elastic force of the elastic member (330) and may not be arbitrarily separated from the fastening portion (235, recessed portion) of the arm (230). Similarly, when the contact member (320) is inserted into the fixing portion (345) of the guide portion (340) (FIG. 12b), the contact member (320) is fastened to the fixing portion (345) of the guide portion (340) by the elastic force of the elastic member (330) and may not be arbitrarily separated from the fixing portion (345) of the guide portion (340). In addition, when the support member (300) is rotated upward while the contact member (320) is inserted into the fastening member (235, recessed portion) of the arm (230), the elastic member (330) is elastically deformed (the elastic member (330) is compressed), and the contact member (320) can be separated from the fastening member (235, recessed portion) of the arm (230). Similarly, when the support member (300) is rotated downward while the contact member (320) is inserted into the fixing member (345) of the guide member (340), the elastic member (330) is elastically deformed (the elastic member (330) is compressed), and the contact member (320) can be separated from the fixing member (345) of the guide member (340).Additionally, the support member (300) may include a guide means (350) that guides the contact member (320). Here, the guide means (350) may guide the contact member (320) so that the contact member (320) can move in a direction away from or toward the arm (230). Specifically, the guide means (350) may include an intermediate member (353) and an inner wall portion (355). Here, one side of the intermediate member (353) may be coupled to the elastic member (330), and the other side may be brought into contact with the contact member (320). That is, the intermediate member (353) is provided between the elastic member (330) and the contact member (320), and may transmit the elastic force of the elastic member (330) to the contact member (320). In addition, the inner wall portion (355) may be formed so that two extend to both sides of the elastic member (330) and the elastic member (330) is disposed therebetween. At this time, the intermediate member (353) may be formed so that two extend to both sides of the elastic member (330) and the side wall portion (354) is formed so that the elastic member (330) is disposed therebetween. The side wall portion (354) of the intermediate member (353) may be in contact with the inner wall portion (355) and may slide along the inner wall portion (355) when the elastic member (330) is elastically deformed (when the elastic member (330) is compressed / expanded). As a result, when the contact member (320) moves in a direction away from or toward the side wall of the arm (230) or the guide member (340), the elastic member (330) is elastically deformed, and the side wall portion (354) of the intermediate member (353) slides along the inner wall portion (355), thereby guiding the contact member (320).

[0071] Meanwhile, an auxiliary fastening portion (237) may be formed on the upper side of the fastening portion (235) of the arm (230). Therefore, as illustrated in FIGS. 8 and 9, when the support portion (300) is fastened to the fastening portion (235) and the shield (30) is rotated in the direction of opening, the support portion (300) may be fastened to the auxiliary fastening portion (237). Here, the auxiliary fastening portion (237) may be formed in a flat shape on the upper side of the fastening portion (235). Therefore, when the contact member (320) of the support portion (300) is placed on the auxiliary fastening portion (237), the contact member (320) of the support portion (300) may be pressed toward the auxiliary fastening portion (237) by the elastic force of the elastic member (330), and may not be arbitrarily separated from the auxiliary fastening portion (237). In this way, when the contact member (320) of the support member (300) is placed on the auxiliary fastening member (237) of a flat shape, the support member (300) can be temporarily fixed, and as a result, the shield (30) can be fixed in a state in which it is opened at a certain angle.

[0072] In addition, a sliding area (239) may be formed on the upper side of the fastening part (235) (on the upper side of the auxiliary fastening part (237)) of the arm (230). Therefore, as illustrated in FIGS. 8 to 10, when the support part (300) is fastened to the fastening part (235, or the auxiliary fastening part (237)) and the shield (30) is rotated in the opening direction, the support part (300) may slide along the sliding area (239). Here, the sliding area (239) may extend so as to be inclined in a direction away from the support part (300) as it moves away from the fastening part (235). Therefore, the contact member (320) of the support part (300) may pass through the fastening part (235) and the auxiliary fastening part (237), and then come into contact with the sliding area (239) and slide along the sliding area (239). At this time, the contact member (320) of the support member (300) is pressed toward the sliding area (239) by the elastic force of the elastic member (330), and can slide while maintaining contact with the sliding area (239) extended in an inclined manner. That is, when the support member (300) is rotated in the direction in which the shield (30) is opened, it can move toward the sliding area (239) by the elastic force of the elastic member (330) and maintain contact with the sliding area (239). Meanwhile, when the support member (300) is continuously rotated in the direction in which the shield (300) is opened, the support member (300) can slide along the guide member (340) formed in an arc shape after passing through the sliding area (239) (see FIG. 11b).

[0073]

[0074] In addition, as illustrated in FIGS. 13 and 14, when the arm (230) is rotated while the support member (300) is connected to the fastening member (235) (the contact member (320) is connected to the fastening member (235)), the support member (300) can be rotated together with the arm (230). For example, when the contact member (320) of the support member (300) is connected to the fastening member (235) and the chin guard (20) is rotated so that the arm (230) is rotated upward, the support member (300) is rotated upward together with the arm (230). Ultimately, when the chin guard (20) rotates, the arm (230) rotates upward, and the support member (300) also rotates upward, and ultimately, the shield (30) supported on the support member (300) can rotate in the direction of opening.

[0075] Meanwhile, as illustrated in FIGS. 15 and 16, when the arm (230) is rotated while the support member (300) is separated from the fastening member (235) (the contact member (320) is separated from the fastening member (235)), the contact member (320) of the support member (300) can be fastened to the fastening member (235). For example, when the contact member (320) of the support member (300) is fixed to the fixing member (345) of the guide member (340) (the contact member (320) of the support member (300) is separated from the fastening member (235)), when the chin guard (20) is rotated and the arm (230) is rotated upward, the contact member (320) of the support member (300) can be fastened by being inserted into the fastening member (235) of the arm (230). Ultimately, when the shield (30) is open and the chin guard (20) is rotated, the arm (230) rotates upward, and the contact member (320) of the support member (300) is connected to the fastening member (235) of the arm (230), and thereafter, the arm (230) and the support member (300) can rotate together. At this time, the arm (230) rotates in conjunction with the rotation of the chin guard (20), and the support member (300) supports the shield (30), so the shield (30) can also rotate according to the rotation of the chin guard (20).

[0076]

[0077] 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.

[0078]

[0079] 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.

[0080]

[0081] [Explanation of symbols]

[0082] 10: Helmet body 20: Chin guard

[0083] 30: Shield 40: Ratchet

[0084] 45: Rotation guide hole 100: Chin guard rotation mechanism

[0085] 200: Link 210: First Link

[0086] 211: First rotation axis 213: Joint

[0087] 215: Second hook section 220: Second link

[0088] 221: Second rotation axis 230: Arm

[0089] 235: Fastening part 237: Auxiliary fastening part

[0090] 239: Sliding area 240: Sliding section

[0091] 240a: First sliding section 240b: Second sliding section

[0092] 250: connecting part 260: rotating part

[0093] 300: Support member 310: Rotating member

[0094] 320: Contact member 323: Pinion gear

[0095] 330: Elastic member 340: Guide member

[0096] 343: Rack gear 345: Fixed part

[0097] 350: Guide means 353: Intermediary member

[0098] 354: Side wall 355: Inner wall

[0099] 500: Guide hole 510: First guide hole

[0100] 520: 2nd Guide Hall

Claims

1. A helmet rotation mechanism provided on a helmet including a helmet body and a shield rotatably connected to the helmet body, A rock that rotates in conjunction with the rotation of the chin guard; and A support member that supports the shield so as to be rotatable and is detachably connected to the arm; A rotation mechanism for a helmet including:

2. In claim 1, A fastening part is formed in the above cancer, The above support member is a rotation mechanism for a helmet that is connected to the above fastening member.

3. In claim 2, The above-mentioned fastening portion is a rotation mechanism for a helmet that is a recessed portion that is recessed in a direction away from the shield.

4. In claim 2, In the above cancer, an auxiliary fastening part is formed on the upper side of the fastening part, A helmet rotation mechanism in which the support member is connected to the auxiliary fastening member when the shield is rotated in the direction in which the support member is opened while the support member is connected to the fastening member.

5. In claim 2, In the above cancer, a sliding area is formed on the upper side of the above fastening part, A helmet rotation mechanism in which the support member slides along the sliding area when the shield is rotated in a direction in which the support member is opened while being fastened to the fastening member.

6. In claim 1, A helmet rotation mechanism in which, when the arm is rotated while the support part is connected to the fastening part, the support part rotates together with the arm.

7. In claim 1, A helmet rotation mechanism in which the support part is connected to the fastening part when the arm is rotated while the support part is separated from the fastening part.

8. In claim 1, The above support part, A rotating member that rotates with respect to a base member provided in the above helmet body; and A contact member provided on the above rotating member, which comes into contact with the arm and is detachably connected to the arm; A rotation mechanism for a helmet including:

9. In claim 8, The above support part, An elastic member that provides elastic force to the contact member in the direction of the cancer; A rotation mechanism for a helmet further comprising:

10. In claim 8, The above contact member is formed in a cylindrical shape, A rotation mechanism for a helmet in which the contact member is rotated by contacting the arm when the support member is rotated.

11. In claim 8, The above contact member is a rotating mechanism for a helmet that is elastically deformable.

12. In claim 8, A guide portion for guiding the contact member is formed on the above base member, A rotation mechanism for a helmet in which the contact member slides along the guide member after the support member is separated from the arm.

13. In claim 12, A rotating mechanism for a helmet in which a fixing portion to which the contact member is fixed is formed at the end of the above guide portion.

14. In claim 12, A pinion gear is formed in the above contact member, A rack gear is formed in the above guide section, A rotation mechanism for a helmet in which the contact member is moved and rotated along the guide portion when the contact member slides along the guide portion.

15. In claim 8, The above support part, A rotation mechanism for a helmet including a guide means for guiding the contact member so that the contact member can move in a direction away from or toward the cancer.

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