EP4445787A1

EP4445787A1 - Helmet

Info

Publication number: EP4445787A1
Application number: EP22904529.9A
Authority: EP
Inventors: Bumoh PARK
Original assignee: HJC Corp
Current assignee: HJC Corp
Priority date: 2021-12-07
Filing date: 2022-11-22
Publication date: 2024-10-16
Also published as: KR102558430B1; KR20230085699A; CN118382382A; WO2023106696A1

Abstract

Disclosed is a helmet. The helmet according to an aspect of the present disclosure may comprise: a helmet body provided to surround a user's head; a fixed member fixed on a side surface of the helmet body and provided with a mounting portion; a moving member which is coupled to the fixed member so as to be able to move back and forth in a straight line, and includes a pass-through portion at a position corresponding to the mounting portion; and a pivot member which is provided with a cam and pivots according to pivoting of the cam, wherein the cam passes through the pass-through portion and is pivotably disposed on the mounting portion.

Description

[Technical Field]

The present disclosure relates to a helmet, and more particularly, to a helmet provided to surround a wearer's head and protect the wearer's head from external impact.

[Background Art]

The two-wheeled vehicle lacks means for protecting the rider in the event of an accident, and there is a very high risk that the impact will be transmitted to the rider when the accident occurs. Accordingly, it is essential for the rider of the two-wheeled vehicle to wear a riding safety helmet, that is, a helmet, to protect his head.
In general, the helmet includes a helmet main body protecting the user's head from an external impact, and a shield that is combined while covering the opening of the helmet main body and has a structure that may be opened and closed vertically through a pivot. The shield is made of a transparent or semi-transparent material to secure the wearer's sight and protect the user's eyes from external winds, foreign substances, etc. In addition to the shield, sun visors that shield sunlight may be pivotably coupled to the helmet main body.
In the conventional helmet, when members such as a shield or sun visor are pivoted from a closed state to an open state, there are many cases in which interference with the helmet main body occurs along the pivot path or the members to be pivoted are in close contact with the helmet main body, preventing the pivot from being performed smoothly. Accordingly, there is an inconvenience that the user must apply excessive force to pivot the members such as the shield and the sun visor, thereby causing a problem that the usability of the helmet is deteriorated.
(Patent Document 1) Korean Patent Registration No. 10-0650994

[Disclosure]

[Technical Problem]

The present disclosure is intended to solve the above problems, and the purpose of the present disclosure is to provide a helmet in which a member pivotably coupled to a helmet main body can be pivoted smoothly and efficiently.
The technical problems of the present disclosure are not limited to the above-mentioned technical problems, and other technical problems not mentioned may be clearly understood by those skilled in the art to which the present disclosure pertains from the following description.

[Technical Solution]

According to an aspect of the present disclosure, there is provided a helmet including: a helmet main body provided to surround a user's head; a fixed member fixed on a side surface of the helmet main body and provided with a mounting portion; a moving member coupled to the fixed member to be able to linearly move forward and rearward, and having a pass-through portion at a position corresponding to the mounting portion; and a pivot member that is provided with a cam and pivots according to pivot of the cam, wherein the cam passes through the pass-through portion and is pivotably disposed on the mounting portion.
In this case, the moving member may provide a cam surface to be in contact with the cam in front of the mounting portion, and when the pivot member pivots from a first position to a second position, the cam presses the cam surface and the moving member moves forward, whereby the pivot axis of the cam may move forward.
In addition, the helmet may further include an elastic member disposed between the fixed member and the moving member to provide a pressing force to the moving member rearward, wherein when the pivot member pivots from a first position to a second position and the cam presses the cam surface, the moving member overcomes the pressing force and may move forward.
In addition, the cam may have three cam protrusions to be spaced apart from each other at a predetermined angle.
In addition, the cam and the pass-through portion may have a triangular shape.
In addition, the mounting portion may be formed to be wider than the pass-through portion, and an outer surface of the cam is caught on the edge of the pass-through portion in at least some sections during the pivoting process to prevent the cam from being separated from the mounting portion.
In addition, the helmet may further include a cover member disposed to cover a portion of the pass-through portion to prevent the cam from being separated from the mounting portion and fixed to the fixed member.
In addition, the cover member may be disposed at a rear of the pass-through portion.
In addition, in the state where the moving member reaches a predetermined position in front, the cam may pass through the pass-through portion and be separated from the mounting portion without being in contact with the cover member.
In addition, the fixed member may further include a fixing means for fixing the moving member so that a coupling state between the pivot member and the mounting portion is released in the state where the moving member reaches the predetermined position in front.
In addition, the fixing means may protrude outward due to elasticity at least a portion in the state where the moving member reaches the predetermined position in front to fix the moving member.
In addition, the fixed member may further include a pivot guide portion disposed in front of the mounting portion to guide the pivot of the pivot member, and wherein the pivot member further comprises a pivot guided portion that moves along the pivot guide portion when pivoting.
In addition, the pivot profile may have an arch shape with a central portion convex forward.
In addition, in at least some sections in which the pivot member pivots from the first position to the second position, the cam may press the cam surface and the moving member moves forward, and the pivot guided portion may be spaced apart in front of the pivot guide portion.
In addition, the pivot axis may move downward or upward in at least some sections of the path along which the pivot member pivots from the first position to the second position.

[Advantageous Effects]

According to the above configuration, the helmet according to the present disclosure provides a structure in which the pivot axis can move forward when the pivot member coupled to the helmet main body pivots, so that the pivot of the pivot member can be smoothly and efficiently achieved, thereby improving the convenience of use of the helmet.
It should be understood that the effects of the present disclosure are not limited to the above effects, but include all effects that can be inferred from the detailed description of the present disclosure or the configuration of the invention described in the claims.

[Description of Drawings]

FIG. 1 is a view illustrating a configuration of a helmet according to an embodiment of the present disclosure.
FIG. 2 is a view illustrating a state in which a pivot member is separated from a helmet according to an embodiment of the present disclosure.
FIG. 3 is an enlarged view illustrating a configuration related to the pivot of a pivot member in a helmet according to an embodiment of the present disclosure by enlarging.
FIG. 4 is a view illustrating a state in which the pivot member is separated in FIG. 3.
FIGS. 5 and 6 are views illustrating a state in which a fixed member, a moving member, an elastic member and a cover member are disassembled according to an embodiment of the present disclosure.
FIG. 7 is a perspective view of a fixed member of a helmet according to an embodiment of the present disclosure.
FIG. 8 is a plan view of a fixed member of a helmet according to an embodiment of the present disclosure.
FIG. 9 is a cross-sectional view of portion A-A' of FIG. 8.
FIG. 10 is an outer perspective view of a moving member of a helmet according to an embodiment of the present disclosure.
FIG. 11 is an inner perspective view of a moving member of a helmet according to an embodiment of the present disclosure.
FIG. 12 is a cross-sectional view of portion B-B' of FIG. 11.
FIG. 13 is a view illustrating a process in which a pivot member of a helmet pivots from a first position to a second position according to an embodiment of the present disclosure.
FIG. 14 is a view illustrating a separation process of a pivot member of a helmet according to an embodiment of the present disclosure.

[Modes of the Invention]

Hereinafter, embodiments of the present disclosure will be described in detail so that those skilled in the art to which the present disclosure pertains can easily carry out the embodiments. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly describe the present disclosure, portions not related to the description are omitted from the accompanying drawings, and the same or similar components are denoted by the same reference numerals throughout the specification.
The words and terms used in the specification and the claims are not limitedly construed as their ordinary or dictionary meanings, and should be construed as meaning and concept consistent with the technical spirit of the present disclosure in accordance with the principle that the inventors can define terms and concepts in order to best describe their invention.
Therefore, the embodiments and structures illustrated in the drawings described in this specification correspond to preferred embodiments of the present disclosure and do not all represent the technical idea of the present disclosure, so the corresponding structures may have various equivalents and modifications to replace them at the time of filing the present disclosure.
In the specification, it should be understood that the terms such as "comprise" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification and do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.
The fact that a component is in the "front", "rear", "upper" or "lower" of another component includes not only the case that it is disposed in the "front", "rear", "upper" or "lower" in immediate contact with the other component, but also the case that another component is disposed in the middle. In addition, the fact that a component is "connected" to another component includes not only the case that it is directly connected to each other but also the case that it is indirectly connected to each other unless otherwise specified.
FIG. 1 is a view illustrating a configuration of a helmet according to an embodiment of the present disclosure, and FIG. 2 is a view illustrating a state in which a pivot member is separated from a helmet according to an embodiment of the present disclosure. In addition, FIG. 3 is an enlarged view illustrating a configuration related to the pivot of a pivot member in a helmet according to an embodiment of the present disclosure by enlarging, and FIG. 4 is a view illustrating a state in which a pivot member is separated in FIG. 3. Meanwhile, FIGS. 5 and 6 are views illustrating a state in which a fixed member, a moving member, an elastic member and a cover member are disassembled.
Referring to FIGS. 1 to 6, a helmet according to an embodiment of the present disclosure includes a helmet main body 100, a fixed member 200, a moving member 300, a pivot member 400, an elastic member 500 and a cover member 600.
The helmet main body 100 is provided to surround the user's head. The helmet main body 100 is worn on the user's head and protects the user's head from external impacts. In one embodiment of the present disclosure, the helmet main body 100 may include an opening portion 100a at the front portion to secure the user's sight.
The helmet main body 100 may be formed of a material capable of absorbing the impacts. For example, the helmet main body 100 may include an outer shell made of a hard synthetic resin or the like and having high strength, and an impact absorber provided inside the outer shell. In this case, the impact absorber may be made of expanded polystyren (EPS) or the like.
The fixed member 200 is fixed on a side surface of the helmet main body 100, and the moving member 300 and the pivot member 400 are coupled. In one embodiment of the present disclosure, the fixed member 200 may be disposed on the left and right sides of the helmet main body 100, respectively.
Referring to FIGS. 7 to 9, the fixed member 200 may include a fixing body 210, a moving member-fastening portion 220, a mounting portion 230, a fixing means 240, a pivot guide portion 250, a pivot auxiliary guide portion 260, and a first elastic member-fixing portion 270.
The fixing body 210 is fastened to the helmet main body 100. The fixing body 210 includes a plate 211, an upper side wall 212 protruding outward from an upper corner of the plate 211, and a lower side wall 213 protruding outward from a lower rear corner of the plate 211. Here, the outer side means a side relatively far from the helmet main body 100, and the inner side means a side relatively close to the helmet main body 100. Meanwhile, the plate 211 may have a shape in which the upper and lower widths increase toward the front.
In one embodiment of the present disclosure, the lower side of the plate 211 may have an open shape except for the rear portion provided with the lower sidewall 213, and the movement of the moving member 300 may be easily achieved through the open portion of the lower side of the plate 211. The rear portion of the plate 211 may also have an open shape, and the open rear portion of the plate 211 may be closed by the cover member 600.
The moving member-fastening portion 220 is provided so that the moving member 300 is coupled to be movable forward and rearward. In one embodiment of the present disclosure, the moving member-fastening portion 220 includes a first fastening wall 221 protruding outward from the plate 211 and extending in the front and rear directions, and a second fastening wall 222 protruding outward from a lower corner of the plate 211 positioned under the first fastening wall 221 and extending in the front and rear directions. In this case, the first fastening wall 221 and the second fastening wall 222 may be disposed in parallel.
The first fastening wall 221 includes a first protrusion 221a protruding upward from an outer portion thereof. In addition, the second fastening wall 222 includes a second protrusion 222a protruding downward from the outer portion (see FIG. 9). Accordingly, the third fastening wall 321 and the fourth fastening wall 322 of the moving member 300 having a hook shape may be engaged with the first protrusion 221a and the second protrusion 222a, respectively, and through this, the moving member 300 may be stably fastened to the fixed member 200.
In one embodiment of the present disclosure, the moving member-fastening portion 220 may include a first guide hole 223 in the form of a long hole extending in the front and rear directions through the plate 211 between the upper side wall 212 and the first fastening wall 221. Along the first guide hole 223, the third fastening wall 321 of the moving member 300 may move forward and rearward. In addition, the moving member-fastening portion 220 may further include a second guide hole 224 formed through a front portion of the portion of the plate 211 disposed between the first fastening wall 221 and the second fastening wall 222, and a third guide hole 225 formed through the plate 211 at a position spaced apart from the second guide hole 224 by a predetermined distance rearward. The cam contact portion 330 of the moving member 300 is disposed in the second guide hole 224 to be able to move forward and rearward, the rear wall 312 of the moving member 300 may be disposed in the third guide hole 225 to be able to move forward and rearward.
The mounting portion 230 is provided so that the cam 420 of the pivot member 400 may be mounted thereon. In one embodiment of the present disclosure, the mounting portion 230 may be defined by the first fastening wall 221 and the second fastening wall 222 that constitute the moving member-fastening portion 220. That is, the mounting portion 230 may be defined as a space formed between the first fastening wall 221 and the second fastening wall 222.
The fixing means 240 is provided to fix the moving member 300 while the moving member 300 is moved forward. The fixing means 240 may be provided so that at least a portion of the fixing means 240 protrudes outward by elasticity when the moving member 300 moves forward and reaches a predetermined position. In one embodiment of the present disclosure, the fixing means 240 extends from the plate 211 to protrude into the inside of the second guide hole 224, and may be provided as a plate-shaped spring whose front portion may protrude outward by elasticity. In this case, the fixing means 240 may be formed of the same material as the plate 211.
The pivot guide 250 is disposed in front of the mounting portion 230 to provide a pivot profile to guide the pivot of the pivot member 400. The pivot profile may have an arch shape with a central portion convex forward. In one embodiment of the present disclosure, the pivot guide portion 250 provides the pivot profile and may be provided as a wall protruding outward from the plate 211.
The pivot guide portion 250 may have a shape in which at least a portion of the inner side is recessed rearward than the outer side. That is, the pivot guide portion 250 may include an inner pivot guide portion 251 providing an arch-shaped pivot profile with a central portion convex forward, and an outer pivot guide portion 252 additionally extending outward from the outer surface of the inner pivot guide portion 251 and having a front surface protruding forward relative to the front surface of the inner pivot guide portion 251.
According to this shape of the pivot guide portion 250, the pivot guided portion 430 of the pivot member 400 may have a hook shape that surrounds the outer pivot guide portion 252 of the pivot guide portion 250 and engages the inner pivot guide portion 251. Through this structure, the pivot of the pivot member 400 may be stably performed.
In addition, a plurality of uneven portions 251a may be provided on the front surface of the inner pivot guide portion 251 of the pivot guide portion 250 along the pivot direction. The uneven portions 251a allow the pivot guided portion 430 to be seated at one or more angles when the pivot guided portion 430 pivots. Accordingly, the user may adjust the position of the pivot member 400 at various angles.
In one embodiment of the present disclosure, the lower end and the upper end of the inner pivot guide portion 251 may be provided with a lower end groove 251b and an upper end groove 251c, which are recessed rearward. The pivot member 400 may pivot from a first position toward a second position, and the first position may be a position at which the pivot member 400 completely closes the opening portion 100a of the helmet main body 100, and the second position may be a position at which the pivot member 400 opens the opening portion 100a of the helmet main body 100 as much as possible. When the pivot member 400 is in the first position, the pivot guided portion 430 is inserted into the lower end groove 251b, and when the pivot member 400 is in the second position, the pivot guided portion 430 is inserted into the upper end groove 251c, thereby securing a stable fixation state at the first position or the second position.
Meanwhile, In one embodiment of the present disclosure, the pivot guide portion 250 may further extend downward. The lower portion of the additionally extended pivot guide portion 250 may be provided with a guide groove 253 recessed from the inside to the outside so that the moving guided portion 352 of the handle portion 350 of the moving member 300 to be described later passes therethrough. For example, the inner pivot guide portion 251 and the outer pivot guide portion 252 of the pivot guide portion 250 are further extended downward, and the inner pivot guide portion 251 is pass-through forward and rearward at the extended end portion to form a guide groove 253.
The pivot auxiliary guide portion 260 is provided as a wall spaced apart from the front of the pivot guide portion 250 and protruding outward from the plate 211, and has an arch shape with a central portion convex forward. The interval between the pivot auxiliary guide portion 260 and the pivot guide portion 250 may be formed by a distance that may prevent the pivot guided portion 430 from being separated when the pivot member 400 pivots. As described above, when the pivot guided portion 430 is provided in a hook shape, the pivot auxiliary guide portion 260 is disposed adjacent to the front portion of the pivot guided portion 430 and prevents the pivot guided portion 430 from being separated when the pivot member 400 pivots.
The pivot auxiliary guide portion 260 may include a recessed portion 260a recessed from the rear to the front at a predetermined point. When it is necessary to couple the pivot member 400 to the fixed member 200 or to separate the pivot member 400 from the fixed member 200, the pivot guided portion 430 of the pivot member 400 may enter into engagement with the pivot guide portion 250 of the fixed member 200 through the portion where the recessed portion 260a is formed, or may be separated from the fixed member 200.
The first elastic member-fixing portion 270 is provided to fix the elastic member 500. In one embodiment of the present disclosure, the first elastic member-fixing portion 270 may include a support wall 271 extending vertically in the rear of the pivot guide portion 250 and a first fixing protrusion 272 protruding to the rear of the support wall 271. In this case, a pair of first fixing protrusions 272 may be provided to be vertically spaced apart from each other. The support wall 271 may be disposed vertically across a front portion of the second guide hole 224. The support wall 271 may be formed to protrude less outward than the outer pivot guide portion 252.
Meanwhile, the fixed member 200 includes a configuration for fastening the fastening member B fixed to the helmet main body 100. In one embodiment of the present disclosure, the fixed member 200 includes a first fastening hole 214 formed through the front upper portion of the plate 211, a second fastening hole 215 formed through a portion additionally extending to the lower side of the pivot guide portion 250 and a fastening groove 216 recessed into the plate 211 from the rear of the third guide hole 225. In addition, the cover member-coupling hole 217 formed through the plate 211 may be provided on the upper side and the lower side of the fastening groove 216 so that the fastening protrusion 620 of the cover member 600 is inserted.
The moving member 300 is coupled to the fixed member 200 to be linearly displaced forward and rearward. The moving member 300 moves forward or rearward when the pivot member 400 pivots and allows the pivot axis to move forward or rearward. As the moving member 300 moves forward or rearward, the area of the mounting portion 230 on which the cam 420 moves may be changed. In other words, the mounting portion 230 on which the cam 420 is mounted by the moving member 300 may have variability. The present disclosure provides a cam profile in which the shape of the area around the cam 420 may be varied depending on the position of the moving member 300.
Referring to FIGS. 10 to 12, the moving member 300 may include a moving body 310, a fixed member-fastening portion 320, a cam contact portion 330, a second elastic member-fixing portion 340, and a handle portion 350.
The moving body 310 is fastened to the moving member-fastening portion 220 so that it may be displaced forward and rearward. The moving body 310 may have a plate shape. The moving body 310 is provided with a pass-through portion 311 at a position corresponding to the mounting portion 230. The pass-through portion 311 may have a triangular shape. In the present disclosure, the shape of the pass-through portion 311 corresponds to the shape of the cam 420, and may be changed depending on the shape of the cam 420. Additionally, the pass-through portion 311 may be formed to be narrower than the mounting portion 230. In other words, the mounting portion 230 may be formed wider than the pass-through portion 311. The cam 420 of the pivot member 400 may be prevented from being separated from the mounting portion 230 by hanging the outer surface of the cam 420 on the edge of the pass-through portion 311 (the moving body 310) in at least some sections of the pivoting process.
In one embodiment of the present disclosure, the moving body 310 has a rear wall 312 protruding inward at the rear of the pass-through portion 311. The rear wall 312 may move within the third guide hole 225 when the moving member 300 is displaced forward and rearward. When the moving member 300 and the pivot member 400 are in a predetermined position, the rear wall 312 may press the cam 420 forward by being in contact with any one of the cam protrusions 420a, 420b, and 420c of the cam 420. In one embodiment of the present disclosure, when the pivot member 400 reaches the second position and the moving member 300 reaches the predetermined position in front, the rear wall 312 presses the cam protrusion 420b located at the rear upper side among the three cam protrusions 420a, 420b, and 420c to pivot the cam 420 so that the pivot member 400 may be a specific angle between the first position and the second position. In this case, the specific position may be a position capable of separating the pivot member 400. Meanwhile, for the arrangement of the cover member 600, the upper portion of the rear wall 312 may be formed to be more recessed than other portion of the moving body 310.
The fixed member-fastening portion 320 is fastened to the moving member-fastening portion 220 of the fixed member 200. The fixed member-fastening portion 320 may include a third fastening wall 321 protruding inward from the upper side of the pass-through portion 311 among the inner surfaces of the moving body 310 and a fourth fastening wall 322 protruding inward from the lower side of the pass-through portion 311 among the inner surfaces of the moving body 310. The third fastening wall 321 may engage with the first fastening wall 221, and the fourth fastening wall 322 may engage with the second fastening wall 222. The third fastening wall 321 and the fourth fastening wall 322 may include the third protrusion 321a and the fourth protrusion 322a to engage with the first protrusion 221a of the first fastening wall 221 and the second protrusion 222a of the second fastening wall 222 (see FIG. 12). More specifically, the third protrusion 321a protrudes downward from the inside of the third fastening wall 321, and the fourth protrusion 322a protrudes upward from the inside of the fourth fastening wall 322. In this way, the third protrusion 321a has a shape complementary to the first protrusion 221a, and the fourth protrusion 322a has a shape complementary to the second protrusion 222a, so that the engagement state may be stably secured.
Meanwhile, the third fastening wall 321 engages with the first fastening wall 221 to move forward or rearward inside the first guide hole 223, and the fourth fastening wall 322 engages with the second fastening wall 222 to move forward or rearward from the lower end of the plate 211. Therefore, the length of the third fastening wall 321 and the fourth fastening wall 322 is shorter than that of the first fastening wall 221 and the second fastening wall 222.
The cam contact portion 330 provides a cam surface 330a to be in contact with the cam in front of the mounting portion 230. When the cam 420 of the pivot member 400 pivots within the mounting portion 230, the moving member 300 may move forward while the cam surface 330a is pressed, and accordingly, the pivot axis moves forward. In one embodiment of the present disclosure, the cam contact portion 330 may be provided as a wall protruding inward from the front of the pass-through portion 311 among the inner surface of the moving body 310, and may be formed on the rear surface of the cam contact portion 330 of the cam surface 330a.
The cam contact portion 330 moves forward or rearward inside the second guide hole 224 of the fixed member 200. As described above, in a state where the moving member 300 is moved to a predetermined position in front, the position may be fixed by the fixing means 240. In a state where the moving member 300 is moved to the predetermined position in front, the fixing means 240 protrudes outward to support the cam surface 330a of the cam contact portion 330, thereby fixing the moving member 300. In this regard, since the cam contact portion 330 should be moved forward and rearward in a state where the fixing means 240 is not protruded outward, the cam contact portion 330 may include a recessed portion 330b recessed outward so as not to interfere with the fixing means 240 in the non-protruded state.
The second elastic member-fixing portion 340 is provided to fix the elastic member 500. In one embodiment of the present disclosure, the second elastic member-fixing portion 340 includes a second fixing protrusion 341 protruding forward from the front surface of the cam contact portion 330. The second fixing protrusions 341 may be provided in a pair spaced apart vertically to correspond to the first fixing protrusions 272.
In one embodiment of the present disclosure, the second elastic member-fixing portion 340 may further include a fixing plate 342 that extends forward of the moving body 310 to prevent the elastic member 500 from escaping to the outside. The front of the elastic member 500 is fitted into the first fixing protrusion 272, and the rear of the elastic member 500 is fitted into the second fixing protrusion 341, wherein the elastic member 500 is compressed when the moving member 300 is displaced forward and is in danger of being separated to the outside during this process. At this time, the fixing plate 342 covers the outer surface of the elastic member 500 to prevent the elastic member 500 from being separated to the outside during compression of the elastic member 500.
Meanwhile, as described above, the support wall 271 of the first elastic member-fixing portion 270 is formed to protrude less outward than the outer pivot guide portion 252, and the fixing plate 342 may be disposed to cover the outside of the support wall 271 while the moving member 300 is moved forward. In addition, the fixed plate 342 may be in contact with the rear surface of the outer pivot guide portion 252 while the moving member 300 moves to a predetermined position in front, and thus the limitation of the forward displacement of the moving member 300 may be defined.
The handle portion 350 may be provided to extend forward from the lower part of the moving body 310. In one embodiment of the present disclosure, the pivot member 400 may be separated from the moving member 300 while the moving member 300 is displaced to a predetermined position in front. In this regard, the fixed member 200 includes a fixing means 240 for fixing the moving member 300 while the moving member 300 moves forward. The handle portion 350 is provided to easily apply a force to the moving member 300 forward when the user wants to displace the moving member 300 to a predetermined position in front.
As described above, the handle portion 350 may include the moving guided portion 352 to stably guide the forward and rearward displacement of the moving member 300. More specifically, the moving guided portion 352 may be provided to pass through the guide groove 250a of the fixed member 200. In one embodiment of the present disclosure, the handle portion 350 is provided with a long hole-shaped through hole 351 extending in the front and rear directions, and the moving guided portion 352 may be formed by an upper edge of the through hole 351.
The pivot member 400 is pivotably coupled to the mounting portion 230. In one embodiment of the present disclosure, the pivot member 400 may be a shield (visor) that may open and close the opening portion 100a of the helmet main body 100.
The pivot member 400 may include a pivot body 410, a cam 420, and a pivot guided portion 430.
The pivot body 410 is a portion that opens and closes the opening portion 100a of the helmet main body 100. The pivot body 410 may be provided to be transparently or translucent.
The cam 420 passes through the pass-through portion 311 and is pivotally disposed on the mounting portion 230. The cam 420 is provided on the inner side of the pivot body 410. The pivot body 410 may be pivoted according to the pivot of the cam 420. As shown in FIG. 4, the cam 420 may include three cam protrusions 420a, 420b, and 420c provided to be spaced apart from each other at a predetermined angle. For example, the cam 420 may be provided in a triangular shape. At least one of the three cam protrusions 420a, 420b, and 420c may press the cam surface 330a upon pivoting. In one embodiment of the present disclosure, the cam profile is designed such that the cam protrusion 420a located in the front side of the cam 420 presses the cam surface 330a.
Of course, the shape of the cam 420 is not limited by one embodiment of the present disclosure. The shape of the cam 420 may be variously modified in a range that enables pressurization of the cam surface 330a and forward movement of the pivot axis. In addition, the shape of the pass-through portion 311 of the moving member 300 may also vary depending on the shape of the cam 420.
The pivot guided portion 430 protrudes inward from the inner surface of the pivot body 410 to be guided along the pivot profile provided by the pivot guide portion 250 of the fixed member 200 when the pivot member 400 pivots. The pivot guided portion 430 may be provided to be spaced apart in the front of the cam 420. As described above, the pivot guided portion 430 may have a hook shape that surrounds the outer pivot guide portion 252 of the pivot guide 250 and engages with the inner pivot guide portion 251.
The elastic member 500 is disposed between the fixed member 200 and the moving member 300 to provide a pressing force to the moving member 300 rearward. When the pivot member 400 pivots, the pivot axis may move forward and then move rearward under predetermined conditions by the pressing force provided by the elastic member 500. In other words, the elastic member 500 provides appropriate tension for each pivot angle when the pivot member 400 pivots.
In one embodiment of the present disclosure, a pair of elastic members 500 may be provided. In addition, the elastic member 500 may be made of a coil spring.
The cover member 600 is disposed to cover a portion of the pass-through portion 311 to prevent the cam 420 from being separated from the mounting portion 230. In one embodiment of the present disclosure, the cover member 600 is disposed at the rear of the pass-through portion 311. In addition, the cover member 600 may be fixed to the fixed member 200. The cover member 600 may include a cover body 610 disposed to cover the rear portion of the pass-through portion 311, a fastening protrusion 620 protruding from the inner surface of the cover body 610 to be inserted into the insertion hole 282 of the cover member-fastening portion 280, and a fastening hole 630 where a fastening member B fastening the cover member 600 and the fixed member 200 to the helmet main body 100 is fastened.
FIG. 13 is a view illustrating a process in which the pivot member of a helmet pivots from a first position to a second position according to an embodiment of the present disclosure. For a clear description of the pivot process, the pivot body 410 of the pivot member 400 is omitted in FIG. 13.
Referring to FIG. 13, the pivot member 400 may pivot from a first position to a second position. In this case, the first position is a state in which the pivot member 400 closes the opening portion 100a of the helmet main body 100, and may be represented as `0 degrees' based on the pivot angle. In addition, the second position is a state in which the pivot member 400 is completely opened, and may be indicated as `55 degrees' based on the pivot angle.
When the pivot member 400 pivots from the first position toward the second position, the cam 420 presses the cam surface 330a and the moving member 300 overcomes the pressing force of the elastic member 500 and moves forward, so that the pivot axis of the cam 420 moves forward. In addition, the pivot guided portion 430 of the pivot member 400 may move along the pivot profile provided by the pivot guide portion 250 of the fixed member 200.
The cam profile provided by the cam protrusions 420a, 420b, and 420c of the cam 420 and the area around the mounting portion 230, and the pivot profile of the pivot guide portion 250 are provided so that the pivot axis moves forward while the pivot member 400 reaches a predetermined position between the first position and the second position from the first position. In addition, when the pivot member 400 pivots, the cam 420 presses the cam surface 330a in at least some sections so that the moving member 300 moves forward and the pivot guided portion 430 may be spaced apart in front of the pivot guide portion 250. Through this structure and operation, the pivot member 400 may be smoothly and smoothly proceed without interfering with the helmet main body 100 during the pivoting process of the pivot member 400.
Referring to FIG. 13, in one embodiment of the present disclosure, a predetermined position between the first position and the second position may be "30 degrees" based on the pivot angle. That is, the cam profile and the pivot profile may be provided so that the pivot axis moves forward until the pivot member 400 reaches "30 degrees" from "0 degrees" based on the pivot angle. In general, interference with the helmet main body 100 may occur greatest at the initial pivot stage during the pivoting of the pivot member 400 due to the structure of the helmet, and in the initial pivoting process, when the pivot axis is displaced forward, the pivot of the pivot member 400 may proceed smoothly and smoothly.
Additionally, the cam profile and the pivot profile may be provided so that the pivot axis moves rearward in the process of the pivot member 400 reaching the second position from the predetermined position. In general, after the pivot of the pivot member 400 is achieved to some extent due to the structure of the helmet, interference between the pivot member 400 and the helmet main body 100 is reduced, so when the pivot axis is displaced rearward during the pivoting later from the predetermined position to the second position, when the pivot member 400 reaches the second position, the pivot member 400 and the helmet main body 100 may come in contact with each other and a stable state may be secured.
Meanwhile, the cam profile and the pivot profile may be provided so that upon pivoting of the pivot member 400, the pivot axis moves forward toward a predetermined position and moves downward or upward, and when the pivot member 400 further pivots at the predetermined position, the pivot axis moves rearward and moves upward or downward.
For example, if the helmet main body 100 has a shape and structure that does not interfere after pivoting to some extent, the cam profile and the pivot profile may be provided so that upon pivoting of the pivot member 400, the pivot axis moves forward downward toward a predetermined position, and when further pivots at the predetermined position, the pivot axis moves rearward upward and returns to an initial position (the position of the pivot axis at the first position). On the contrary, if the helmet main body 100 has a shape and structure that interferes due to attachments or the like even after pivoting to some extent, the cam profile and the pivot profile may be provided so that upon pivoting of the pivot member 400, the pivot axis moves forward up toward a predetermined position, and when further pivoted at the predetermined position, the pivot axis moves rearward down and returns to an initial position (the position of the pivot axis at the first position).
Meanwhile, in FIG. 13, a "pivot member separation prevention site" is displayed. As can be seen from this, at least a portion of the cam 420 of the pivot member 400 is supported by the moving body 310 of the moving member 300 in the entire process of pivoting the pivot member 400 from the first position to the second position, and the pivot guide 430 is maintained in a state of engaging the pivot guide 250 of the fixed member 200, thereby preventing the pivot member 400 from separation.
FIG. 14 is a view illustrating a separation process of a pivot member of a helmet according to an embodiment of the present disclosure. For a clear description of the separation process of the pivot member 400, the pivot body 410 of the pivot member 400 is omitted in FIG. 14.
The cam profile and the pivot profile may be configured to allow the pivot member 400 to be separated when the pivot angle of the pivot member 400 is a specific position between the first position and the second position. At this time, the specific position may be a position where the pivot guided portion 430 may be separated outward through the recessed portion 260a of the pivot auxiliary guide portion 260. For example, In one embodiment of the present disclosure, the specific position may be a "45 degree" position based on the pivot angle. A separation process of the pivot member 400 will be described below on the premise of this.
First, the pivot member 400 pivots to the second position (55 degrees). Next, the moving member 300 moves to a predetermined position in front. At this time, in the process of the movable member 300 reaching the predetermined position in front, the rear wall 312 of the moving member 300 presses the cam protrusions 420b located at the rear upper side among the three cam protrusions 420a, 420b, and 420c. Accordingly, the cam 420 pivots and the pivot member 400 moves to the specific position (45 degrees). In this state, the outer surface of the cam 420 is no longer supported by the moving body 310, and only the pivot guided portion 430 of the pivot member 400 remains hooked to the outer pivot guide portion 252 of the pivot guide portion 250 and functions as a "pivot member separation prevention site". In this case, the moving member 300 completely moves to a predetermined position in front, and the moving member 300 is fixed by the fixing means 240. Accordingly, the pivot guided portion 430 moves forward to be separable from the pivot guide potion 250, and the pivot guided portion 430 may be separated outward through the recessed portion 260a of the pivot auxiliary guide portion 260. As a result, the pivot member 400 may be separated.
Although embodiments of the present disclosure have been described, the spirit of the present disclosure is not limited by the embodiments presented in the specification. Those skilled in the art who understand the spirit of the present disclosure will be able to easily suggest other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this will also be included within the scope of the spirit of the present disclosure.

Claims

A helmet, comprising:
a helmet main body provided to surround a user's head;

a fixed member fixed on a side surface of the helmet main body and provided with a mounting portion;

a moving member coupled to the fixed member to be able to linearly move forward and rearward, and having a pass-through portion at a position corresponding to the mounting portion; and

a pivot member that is provided with a cam and pivots according to pivot of the cam, wherein the cam passes through the pass-through portion and is pivotably disposed on the mounting portion.
The helmet of claim 1, wherein the moving member provides a cam surface to be in contact with the cam in front of the mounting portion, and when the pivot member pivots from a first position to a second position, the cam presses the cam surface and the moving member moves forward, whereby the pivot axis of the cam may move forward.
The helmet of claim 2, further comprising:
an elastic member disposed between the fixed member and the moving member to provide a pressing force to the moving member rearward,

wherein when the pivot member pivots from a first position to a second position and the cam presses the cam surface, the moving member overcomes the pressing force and may move forward.
The helmet of claim 2, wherein the cam has three cam protrusions to be spaced apart from each other at a predetermined angle.
The helmet of claim 4, wherein the cam and the pass-through portion have a triangular shape.
The helmet of claim 1, wherein the mounting portion is formed to be wider than the pass-through portion, and an outer surface of the cam is caught on the edge of the pass-through portion in at least some sections during the pivoting process to prevent the cam from being separated from the mounting portion.
The helmet of claim 6, further comprising:
a cover member disposed to cover a portion of the pass-through portion to prevent the cam from being separated from the mounting portion and fixed to the fixed member.
The helmet of claim 7, wherein the cover member is disposed at a rear of the pass-through portion.
The helmet of claim 8, wherein in the state where the moving member reaches a predetermined position in front, the cam may pass through the pass-through portion and be separated from the mounting portion without being in contact with the cover member.
The helmet of claim 9, wherein the fixed member further comprises a fixing means for fixing the moving member so that a coupling state between the pivot member and the mounting portion is released in the state where the moving member reaches the predetermined position in front.
The helmet of claim 10, wherein the fixing means protrudes outward due to elasticity at least a portion in the state where the moving member reaches the predetermined position in front to fix the moving member.
The helmet of claim 2, wherein the fixed member further comprises a pivot guide portion disposed in front of the mounting portion to guide the pivot of the pivot member, and
wherein the pivot member further comprises a pivot guided portion that moves along the pivot guide portion when pivoting.
The helmet of claim 12, wherein the pivot profile has an arch shape with a central portion convex forward.
The helmet of claim 12, wherein in at least some sections in which the pivot member pivots from the first position to the second position, the cam presses the cam surface and the moving member moves forward, and the pivot guided portion is spaced apart in front of the pivot guide portion.
The helmet of claim 2, wherein the pivot axis moves downward or upward in at least some sections of the path along which the pivot member pivots from the first position to the second position.