US20260000147A1

US20260000147A1 - Helmet

Info

Publication number: US20260000147A1
Application number: US18/864,053
Authority: US
Inventors: Mangyu SANG; Bumoh PARK; Junghyun JO
Original assignee: HJC Corp
Current assignee: HJC Corp
Priority date: 2022-05-09
Filing date: 2023-03-22
Publication date: 2026-01-01
Also published as: EP4523559A1; KR102695675B1; CN119173168A; WO2023219256A1; KR20230157137A

Abstract

A helmet is disclosed. A helmet according to an exemplary embodiment of the present invention may include: a helmet body capable of surrounding a user's head; a fixing member which is fixed to a side surface of the helmet body and has a cam seat part; a movable member coupled to the fixing member so as to be linearly movable forward or backward; a pivot member which has a cam pivotally seated on the cam seat part and is disposed to be engaged with the movable member so as to be pivotable around the cam as a pivot axis; and a pressing member disposed in the fixing member to elastically support the cam and press the cam backward, wherein when the pivot member pivots from a first position toward a second position, the pivot axis moves forward and the pivot member and the movable member are accordingly displaced forward.

Description

TECHNICAL FIELD

The present invention relates to a helmet, and more particularly, to a helmet that protects a wearer's head from external impact while being worn on the wearer's head.

BACKGROUND

Two-wheeled vehicles lack the means to protect passengers in the event of an accident, and there is a very high risk that the impact will be transmitted to the passenger as it is in the event of an accident. Accordingly, it is essential for passengers of two-wheeled vehicles to wear a safety helmet for riding, that is, a helmet to protect their heads.
In general, a helmet includes a helmet body that protects a user's head from external impact, and a shield that is coupled to the helmet body to cover the opening of the helmet body and has a structure that can be pivoted to open and close up and down. The shield is made of a transparent or translucent material to secure the wearer's field of view and protect the user's eyes from external wind, foreign substances, and the like. In addition, in addition to the shield, a sun visor that shields sunlight may be pivotally coupled to the helmet body.
Conventional helmets often interfere with the helmet body on the pivot path when pivots members such as shields and sun visors to open or close, or they are in close contact with the helmet body so that the pivot cannot be made smoothly. Accordingly, there is an inconvenience that the user has to apply excessive force to pivot when opening or closing members such as shields and sun visors, resulting in a problem that the convenience of using the helmet is deteriorated.
(Patent Document 1) Korean Patent Registration No. 10-0650994

DISCLOSURE

Technical Problem

The present invention aims to solve the above problems, and the present invention is directed to providing a helmet in which the pivot of a pivot member pivotably that is coupled to a helmet body can be made smoothly and efficiently.
The present invention is also directed to providing a helmet capable of easily attaching and detaching a pivot member that is pivotally coupled to a helmet body.
The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

Technical Solution

According to an aspect of the present invention, provided is a helmet, including a helmet body configured to surround a user's head; a fixing member fixed to a side surface of the helmet body and having a cam seat part; a movable member coupled to the fixing member so as to be linearly movable forward or backward; a pivot member which has a cam pivotally seated on the cam seat part and is disposed to be engaged with the movable member so as to be pivotable around the cam as a pivot axis; and a pressing member disposed in the fixing member to elastically support the cam and press the cam backward, wherein when the pivot member pivots from a first position toward a second position, the pivot axis moves forward and the pivot member and the movable member are accordingly displaced forward.
In this case, the cam seat part and the cam may have a profile in which the cam is displaced forward when the pivot member pivots from the first position toward the second position.
In addition, the cam may have a triangular shape including a first corner part, a second corner part, and a third corner part, and the cam seat part may provide one or more support surfaces surrounding the cam, and in the cam at the first position, a first cam surface between the first corner part and the second corner part may be supported by a first support surface on the rear side of the cam seat part, and the third corner part may be in contact with the pressing member.
In addition, the pressing member may be disposed on the front side of the cam seat part, and in the cam at the second position, a second cam surface between the second corner part and the third corner part may be in contact with the pressing member, and the first corner part may be in contact with the first support surface.
In addition, the first corner part, the second corner part, and the third corner part may protrude toward a cam seating surface of the cam seat part so as to be in contact with the cam seating surface, and the cam seating surface may not be in contact between the first corner part and the second corner part, between the second corner part and the third corner part, and between the third corner part and the first corner part.
In addition, the fixing member may further include a pivot guide part for providing a pivot profile of the pivot member in front of the fixing member, and the pivot member may further include a pivot guided part guided by the pivot guide part during pivoting with the cam as a pivot axis.
In addition, the movable member may include a first pivot support part engaged with the pivot guided part to prevent the pivot member from being separated when the pivot member is pivoted.
In addition, when the movable member reaches a predetermined position in front of the fixing member at the second position, the engagement between the pivot guided part and the first pivot support part may be released to separate the pivot member.
In addition, the movable member may further include a fixing means for fixing the movable member in a state in which the movable member reaches the predetermined position in front.
In addition, wherein at least a part of the fixing means may protrude outward from the helmet body by elasticity to fix the movable member in a state in which the movable member reaches the predetermined position in front.
In addition, the pivot member may further include a pressing part wherein when it is coupled to the movable member in a state in which the movable member is fixed by the fixing means, the fixed state of the movable member by the fixing means is released to press the fixing means toward the helmet body so that the pivot guided part and the first pivot support part are engaged with each other.
In addition, the fixing member may further include a pressing part pivot part for providing a pivot path of the pressing part when the pivot member is pivoted.
In addition, the pivot member may further include a pivot auxiliary part at a position spaced rearward from the pivot guided part at a predetermined interval, and the movable member may further include a second pivot support part engaged with the pivot auxiliary part to prevent the pivot member from being separated when the pivot member is pivoted.
In addition, the helmet may further include a first elastic member disposed between the fixing member and the pressing member to elastically support the pressing member.
In addition, the helmet may further include a second elastic member disposed between the fixing member and the movable member to press the pressing member rearward.

Advantageous Effect

According to the above configuration, the helmet according to the present invention provides a structure in which the pivot axis can be moved forward when the pivot member coupled to the helmet body is pivoted, allowing the pivot of the pivot member to be made smoothly and efficiently, thereby improving convenience of use of the helmet.
The helmet according to an exemplary embodiment of the present invention improves structural stability and usability through a structure in which the pivot member is fastened to the helmet body through the movable member that can be linearly displaced forward and backward, but elastic support for the pivot member and elastic support for the movable member are provided independently.
The helmet according to an exemplary embodiment of the present invention provides convenience of use through a structure capable of easily attaching and detaching the pivot member at a predetermined position.
Advantageous effects of the present invention are not limited to the above-described effects, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a view illustrating a configuration of a helmet according to an exemplary embodiment of the present invention.

FIG. 2 is a view illustrating a state in which a pivot member is separated from the helmet according to an exemplary embodiment of the present invention.

FIG. 3 is an enlarged view illustrating a configuration related to the pivot of the pivot member in the helmet according to an exemplary embodiment of the present invention.

FIG. 4 is a view illustrating a state in which the pivot member is separated in FIG. 3 .

FIG. 5 is an exploded view illustrating a state in which a fixing member, a movable member, a pivot member, a pressing member, a first elastic member, and a second elastic member of a helmet according to an exemplary embodiment of the present invention are disassembled, viewed from the outer side.

FIG. 6 is an exploded view illustrating a state in which a fixing member, a movable member, a pivot member, a pressing member, a first elastic member, and a second elastic member of a helmet according to an exemplary embodiment of the present invention are disassembled, viewed from the inner side.

FIG. 7 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 exemplary embodiment of the present invention.

FIG. 8 is a view illustrating a separation process of a pivot member of a helmet according to an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, exemplary embodiments of the present invention will be described in detail so that those of ordinary skill in the art can readily implement the present invention with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments set forth herein. In the drawings, parts unrelated to the description are omitted for clarity of description of the present invention, and throughout the specification, same or similar reference numerals denote same elements.
Terms and words used in the present specification and claims should not be construed as limited to their usual or dictionary definition. They should be interpreted as meaning and concepts consistent with the technical idea of the present invention, based on the principle that inventors may appropriately define the terms and concepts to describe their own invention in the best way.
It should be understood that the terms “comprise or include” or “have” or the like when used in this specification, are intended to describe the presence of stated features, numbers, steps, operations, elements, components and/or a combination thereof but not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, elements, components, or a combination thereof.
The presence of an element in/on “front”, “rear”, “upper or above or top” or “lower or below or bottom” of another element includes not only being disposed in/on “front”, “rear”, “upper or above or top” or “lower or below or bottom” directly in contact with other elements, but also cases in which another element being disposed in the middle, unless otherwise specified. In addition, unless otherwise specified, that an element is “connected” to another element includes not only direct connection to each other but also indirect connection to each other.
FIG. 1 is a view illustrating a configuration of a helmet according to an exemplary embodiment of the present invention. FIG. 2 is a view illustrating a state in which a pivot member is separated from the helmet according to an exemplary embodiment of the present invention. FIG. 3 is an enlarged view illustrating a configuration related to the pivot of the pivot member in the helmet according to an exemplary embodiment of the present invention, and FIG. 4 is a view illustrating a state in which the pivot member is separated in FIG. 3 . Meanwhile, FIGS. 5 and 6 are exploded views illustrating a state in which a fixing member, a movable member, a pivot member, a pressing member, a first elastic member, and a second elastic member of a helmet according to an exemplary embodiment of the present invention are disassembled.
The helmet according to an exemplary embodiment of the present invention prevents interference between a helmet body 100 and a pivot member 400 during the pivot process of the pivot member 400 through a structure in which when the pivot member 400 pivotally fastened to the helmet body 100 pivots from the first position (for example, a position where the pivot member 400 closes an opening 100 a of the helmet body 100) to the second position (for example, a position where the pivot member 400 opens the opening 100 a of the helmet body 100), the pivot axis moves forward. Accordingly, the present invention improves the usability of the helmet by allowing the pivot of the pivot member 400 to be achieved smoothly.
Referring to FIGS. 1 to 6 , the helmet according to an exemplary embodiment of the present invention includes a helmet body 100, a fixing member 200, a movable member 300, a pivot member 400, a pressing member 500, a first elastic member 600, and a second elastic member 700.
The helmet body 100 is provided to cover a user's head. The helmet body 100 is worn on the user's head to protect the user's head from external impact. In an embodiment of the present invention, the helmet body 100 may include an opening 100 a at a front portion to secure the user's field of view.
The helmet body 100 may be formed of a material capable of absorbing impact. For example, the helmet body 100 may include an outer shell formed of 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 formed of expanded polystyrene (EPS) or the like.
The fixing member 200 is fixed to a side surface of the helmet body 100. The movable member 300 is coupled to the fixing member 200 to be linearly displaceable in the front-rear direction. In an embodiment of the present invention, each one fixing member 200 may be disposed on the left and right sides of the helmet body 100, respectively.
As best illustrated in FIGS. 5 to 6 , the fixing member 200 may include a fixing body 210, a cam seat part 220, a pressing member arrangement part 230, a pivot guide part 240, a pivot auxiliary part pivot part 250, a pressing part pivot part 260, a first support part 270, and a movable member fastening part 280.
The fixing body 210 is fastened to the helmet body 100. The fixing body 210 may have a plate shape. An inner surface of the fixing body 210 is disposed to face the helmet body 100, and an outer surface thereof is disposed to face the outside. Hereinafter, the inner refers to the side relatively close to the helmet body 100 or facing the helmet body 100, and the outer refers to the side relatively far from the helmet body 100 or facing the outside of the helmet body 100.
A front upper end part 210 a and a front lower end part 210 b of the fixing body 210 function as stoppers when the movable member 300 is displaced rearward, which will be described later, and limit the movement range of the movable member 300. In an embodiment of the present invention, the fixing body 210 may include a protrusion 210 c inserted into a window part 320 provided in the movable member 300 to protrude inward from the inner surface of the fixing body 210 to guide linear movement of the movable member 300. The protrusion 210 c is disposed in contact with an upper edge and a lower edge of the window part 320, and may limit movement of the movable member 300 in the up-down direction.
The cam seat part 220 is formed to be recessed in the fixing body 210 so that a cam 420 of the pivot member 400 is seated thereon. The cam 420 becomes a pivot axis of the pivot member 400. The cam seat part 220 is provided such that the cam 420 of the pivot member 400 is pivotally seated. The cam seat part 220 provides a profile in which the pivot axis may be displaced forward by displacing the cam 420 of the pivot member 400 forward when the pivot member 400 pivots from the first position to the second position.
In an embodiment of the present invention, the cam seat part 220 includes a cam seating surface 221 provided to contact at least a part of the inner surface of the cam 420, a first support surface 222 provided by a sidewall extending in the up-down direction behind the cam seating surface 221, a second support surface 223 provided by a sidewall disposed at the rear of the upper portion of the cam seating surface 221 to be inclined downward from the rear toward the front, a third support surface 224 provided by a sidewall disposed at the front of the upper portion of the cam seating surface 221 to be inclined upward from the rear toward the front, and a fourth support surface 225 provided by a side wall recessed downward in an arc shape at the lower part of the cam seating surface 221.
The pressing member arrangement part 230 is provided in front of the cam seat part 220 so that the pressing member 500 providing elastic support force to the cam 420 disposed on the cam seat part 220 is disposed. In an embodiment of the present invention, the pressing member arrangement part 230 may include a pressing member arrangement slot 231 formed to penetrate the outside and inside of the fixing body 210 in front of the cam seat part 220, a cover bridge 232 disposed integrally with the fixing body 210 while crossing the pressing member arrangement slot 231 in the upward direction to cover the outside of the pressing member 500 to prevent separation of the pressing member 500 disposed in the pressing member arrangement slot 231, and a first elastic member arrangement groove 233 in which the first elastic member 600 that presses the pressing member 500 backward and provides an elastic support force is seated.
As shown in FIG. 6 , the cover bridge 232 may be disposed to cross the pressing member arrangement slot 231 in the upward direction to cover an outer side of the pressing member 500. The cover bridge 232 is disposed so that a locking sill 520 of the pressing member 500 to be described later is caught, and limits the forward displacement of the pressing member 500.
The first elastic member arrangement groove 233 supports the front end of the first elastic member 600 and covers at least a part of the outer surface of the first elastic member 600 to prevent the first elastic member 600 from leaving outward. In this case, the rear end of the first elastic member 600 may be supported by the pressing member 500.
The pivot guide part 240 provides a pivot profile of the pivot member 400 and is disposed in front of the fixing member 200. In an embodiment of the present invention, the pivot guide part 240 provides a pivot path of a pivot guided part 430 when the pivot member 400 is pivoted, and guides the pivot of the pivot member 400. The pivot guide part 240 may be provided on the front wall of the fixing body 210. In this case, the front wall may have an arch shape in which the central portion thereof is convex forward. In other words, the pivot profile may have an arch shape in which the central portion is convex forward.
The pivot auxiliary part pivot part 250 is formed by penetrating the outside and the inside of the fixing body 210 from the rear of the cam seat part 220. A pivot auxiliary part 440 of the pivot member 400 and a second pivot support part 350 of the movable member 300 that is disposed to be engaged with the pivot auxiliary part 440 are disposed in the pivot auxiliary part pivot part 250. When the pivot member 400 is pivoted, inside the pivot auxiliary part pivot part 250, the pivot auxiliary part 440 may be pivoted and the second pivot support part 350 of the movable member 300 may linearly move. In this regard, the front portion of the pivot auxiliary part pivot part 250 may function as a stopper limiting the forward displacement of the movable member 300.
The pressing part pivot part 260 provides a pivot path of the pressing part 450 when the pivot member 400 is pivoted. In an embodiment of the present invention, the pressing part pivot part 260 includes a pressing part pivot slot 261 penetrating the outside and inside of the fixing body 210 from the lower side of the cam seat part 220. The pressing part pivot slot 261 may have an arch shape convex downward. In addition, the pressing part 450 of the pivot member 400 may have a hook shape in which the inner end protrudes downward, and the pressing part pivot slot 261 may have a portion 261 a in which a penetration area is expanded downward in a front portion to allow entry or separation of the pressing part 450. In other words, the pressing part pivot slot 261 may be provided such that the pressing part 450 may enter the inside of the pressing part pivot slot 261 or be separated to the outside of the pressing part pivot slot 261 through the expanded portion 261 a, and the remaining portion may be engaged with the pressing part 450 when the pivot member 400 is pivoted.
Meanwhile, in an embodiment of the present invention, the pressing part pivot part 260 further includes a step 262 provided on at least one of the upper side and lower side of the pressing part pivot slot 261 among the inner surfaces of the fixing body 210. The step 262 has a structure in which the rear portion additionally protrudes inward compared to the front portion. When a fixing means 360 of the movable member 300, which will be described later, is caught in the step 262, the movable member 300 becomes fixed to the fixing member 200, and its linear displacement is limited.
The first support part 270 is disposed between the fixing member 200 and the movable member 300 to support the front side of the second elastic member 700 that presses the movable member 300 rearward. In an embodiment of the present invention, the first support part 270 may be provided above the cam seat part 220. In more detail, the first support part 270 may include an elastic member arrangement slot 271 extending in the front-rear direction so that the second elastic member 700 may be disposed and penetrating the outside and the inside of the fixing body 210, and a first support wall 272 provided in front of the elastic member arrangement slot 271 to support the front end of the second elastic member 700.
The movable member fastening part 280 is provided to increase the fastening force between the fixing member 200 and the movable member 300. The movable member fastening part 280 may include a fastening slot 281 extending in the front-rear direction and penetrating the outside and inside of the fixing body 210, and a first fastening hook 282 extending from a sidewall of the fastening slot 281 to the inside of the fastening slot 281. When the movable member 300 is fastened to the fixing member 200, a second fastening hook 382 of the movable member 300, which will be described later, may be disposed inside the fastening slot 281 while engaging with the first fastening hook 282, and when the movable member 300 is linearly displaced, the second fastening hook 382 of the movable member 300 may be linearly displaced from the inside of the fastening slot 281 in the front-rear direction.
Meanwhile, the fixing member 200 may include one or more fastening parts for fastening a fastening member S (e.g., a screw) that couples the fixing member 200 to the helmet body 100. In an embodiment of the present invention, the fixing member 200 includes a first fastening part 211, a second fastening part 212, and a third fastening part 213 penetrating the front upper end part 210 a, the front lower end part 210 b, and the cam seating surface 221 of the fixing body 210, respectively.
The movable member 300 is coupled to the fixing member 200 so as to be linearly movable in the front-rear direction. The movable member 300 allows the pivot axis to be moved forward or backward while moving forward or backward when the pivot member 400 is pivoted.
As best illustrated in FIGS. 5 to 6 , the movable member 300 may include a movable body 310, a window part 320, a second support part 330, a first pivot support part 340, a second pivot support part 350, a fixing means 360, and a handle part 370.
The movable body 310 is fastened to the fixing member 200 to be movable in the front-rear direction. The movable body 310 may have a plate shape. The movable body 310 is disposed inside the fixing member 200. In an embodiment of the present invention, the movable body 310 includes a front upper end part 310 a protruding outwardly at a front upper end and a front lower end part 310 b protruding outwardly at a front lower end. The front upper end part 310 a and the front lower end part 310 b of the movable body 310 are provided at positions corresponding to the front upper end part 210 a and the front lower end part 210 b of the fixing body 210, respectively, to limit the rear displacement of the movable member 300.
The window part 320 penetrates the outer and inner sides of the movable body 310 so that the protrusion 210 c of the fixing body 210 is inserted, and extends in the front-rear direction. As described above, the protrusion 210 c protrudes inward from the inner surface of the fixing body 210. An upper edge and a lower edge of the window part 320 are disposed in contact with the protrusion 210 c, and thus movement of the movable member 300 in the up-down direction may be limited when the movable member 300 moves in the front-rear direction.
The second support part 330 is disposed between the fixing member 200 and the movable member 300 to support the rear side of the second elastic member 700 that presses the movable member 300 rearward. In an embodiment of the present invention, the second support part 330 may be provided above the window part 320. In more detail, the second support part 330 may include an elastic member arrangement groove 331 extending in the front-rear direction so that the second elastic member 700 may be disposed and on which the movable body 210 is seated, and a second support wall 332 protruding outward from the rear of the elastic member arrangement groove 331 to support the rear end of the second elastic member 700.
The first pivot support part 340 is engaged with the pivot guided part 430 of the pivot member 400 so as to prevent the pivot member 400 from being separated when the pivot member 400 is pivoted. In an embodiment of the present invention, the pivot guided part 430 may serve as a hook protruding inward from the inner surface of the pivot body 410. The first pivot support part 340 may be provided as an arch-shaped wall protruding outward so that the pivot guided part 430 that is displaced while being guided by the pivot guide part 240 of the fixing member 200 during the pivot of the pivot member 400 is engaged therewith. In addition, the first pivot support part 340 may be arranged in front of the pivot guide part 240 of the fixing member 200 to form a slot in which the pivot guided part 430 moves along with the pivot guide part 240, but may be connected to the front of the movable body 310 to engage with the pivot guided part 430. In more detail, the rear portion of the first pivot support part 340 may have a shape in which the outer side extends rearward compared to the inner side so that the hook-shaped pivot guided part 430 is engaged therewith.
The second pivot support part 350 is disposed to be engaged with the pivot auxiliary part 440 of the pivot member 400 to increase stability during the pivot of the pivot member 400. The pivot auxiliary part 440 may serve as a hook protruding inward from the inner surface of the pivot body 410. The second pivot support part 350 may be provided as an arch-shaped wall protruding outward so that the pivot auxiliary part 440 is engaged therewith. In an embodiment of the present invention, the second pivot support part 350 may be disposed at the rear of the movable body 310, and a rear portion of the second pivot support part 350 may have a shape in which the outer side thereof extends rearward compared to the inner side so that the hook-shaped pivot auxiliary part 440 is engaged therewith.
The fixing means 360 is provided to fix the movable member 300 in a state in which the movable member 300 reaches a predetermined position in front of the fixing member 200. The fixing means 360 may be provided such that at least a part thereof protrudes outward by elasticity in a state in which the movable member 300 is moved forward and reaches a predetermined position. The fixing means 360 may be provided below the window part 320 as a plate-shaped spring in which at least a part may protrude outward by elasticity. In more detail, the fixing means 360 may be integrally provided with the movable body 310.
Until the movable member 300 reaches a predetermined position in front, the fixing means 360 maintains a state of being pressed by the inner surface of the fixing body 210 behind the step 262 of the pressing part pivot part 260, and the movable member 300 is reversibly displaceable forward or backward. However, when the movable member 300 reaches a predetermined position in front, the pressed state of the fixing means 360 is released, and the fixing means 360 protrudes outward and is caught in the step 262. Accordingly, displacement of the movable member 300 to the rear is limited. In this case, the predetermined position may be a position for coupling or separation of the pivot member 400.
In an embodiment of the present invention, the fixing means 360 includes a plate-shaped first portion 361 having a front end connected to the movable body 310 and protruding outward toward the rear, and a plate-shaped second portion 362 connected to the rear of the first portion 361 and inclined inward toward the rear. The second portion 362 increases the reliability of the operation when the fixing means 360 is pressed inward by the pressing part 450 of the pivot member 400 in the process of coupling the pivot member 400. In addition, the fixing means 360 may further include a fixing protrusion 363 that additionally protrudes outward from the boundary between the first portion 361 and the second portion 362. The fixing protrusion 363 is caught by the step 262 when the pressed state of the fixing means 360 is released. The fixing protrusion 363 increases operational reliability when the movable member 300 is fixed.
The handle part 370 may be provided to extend forward from the lower portion of the movable body 310. In an embodiment of the present invention, when the pivot member 400 is pivoted to the second position and the movable member 300 is displaced to a predetermined position in front, the pivot member 400 may be separated from the movable member 300. In this regard, the movable member 300 includes a fixing means 360 for fixing the movable member 300 in a state in which the movable member 300 is moved forward. The handle part 370 is provided to easily apply a force forward to the movable member 300 when the user wants to displace the movable member 300 forward to a predetermined position.
The pivot member 400 is pivotally seated on the cam seat part 220 of the fixing member 200 and is pivotally coupled to the movable member 300. In an embodiment of the present invention, the pivot member 400 may be a shield, a visor, or the like capable of opening and closing the opening 100 a of the helmet body 100.
The pivot member 400 has a cam 420 that is pivotally seated on the cam seat part 220, and is pivotally engaged with the movable member 300 with the cam 420 as a pivot axis. In more detail, the pivot member 400 may include a pivot body 410, a cam 420, a pivot guided part 430, a pivot auxiliary part 440, and a pressing part 450.
The pivot body 410 is a part that opens and closes the opening 100 a of the helmet body 100. The pivot body 410 may be provided to be transparent or translucent. For example, the pivot body 410 may form a shield, a visor, or the like.
The cam 420 protrudes inward from the inner surface of the side of the pivot body 410. In an embodiment of the present invention, a pair of cams 420 may be provided on both sides of the pivot body 410. The cam 420 functions as a pivot axis of the pivot member 400. The cam 420 is pivotally disposed in the cam seat part 220 of the fixing member 200, and has a profile capable of displacing forward when the pivot member 400 pivots from the first position to the second position.
The cam 420 has a triangular shape including a first corner part 420 a, a second corner part 420 b, and a third corner part 420 c. In addition, a first cam surface 421 is provided between the first corner part 420 a and the second corner part 420 b, a second cam surface 422 is provided between the second corner part 420 b and the third corner part 420 c, and a third cam surface 423 is provided between the third corner part 420 c and the first corner part 420 a. This configuration of the cam 420 provides a profile in which the pivot axis can be displaced forward and backward when the cam 420 pivots in the cam seat part 220 of the fixing member 200.
In an embodiment of the present invention, the first corner part 420 a, the second corner part 420 b, and the third corner part 420 c of the cam 420 may protrude toward the cam seating surface 221 so as to be in contact with the cam seating surface 221 of the cam seat part 220, and the cam seating surface 221 may not be in contact between the first corner part 420 a and the second corner part 420 b, between the second corner part 420 b and the third corner part 420 c, and between the third corner part 420 c and the first corner part 420 a. Through this configuration, the pivot of the cam 420 may be made more smoothly by minimizing a contact area while securing a stable contact surface between the cam seating surface 221 and the cam 420 when the cam 420 is pivoted.
When the pivot member 400 rotates with the cam 420 as a pivot axis, the pivot guided part 430 is guided by the pivot guide part 240 of the fixing member 200. In an embodiment of the present invention, the pivot guided part 430 may become a protrusion protruding inward from the inner surface of the pivot body 410 in front of the cam 420. In more detail, the pivot guided part 430 may have a hook shape that engages with the first pivot support part 340 of the movable member 300. When the pivot member 400 is pivoted, the pivot guided part 430 may move forward or backward together in a state of being engaged with the first pivot support part 340 of the movable member 300.
The pivot auxiliary part 440 is provided to improve pivot stability of the pivot member 400. In an embodiment of the present invention, it is provided at a position spaced rearward from the pivot guided part 430 at a predetermined interval. In more detail, the pivot auxiliary part 440 may become a protrusion protruding inward from the inner surface of the pivot body 410 in rear of the cam 420. The pivot auxiliary part 440 may have a hook shape that engages with the second pivot support part 350 of the movable member 300. When the pivot member 400 is pivoted, the pivot auxiliary part 440 may move forward or backward together in a state of being engaged with the second pivot support part 350 of the movable member 300.
When the pivot member 400 is coupled to the movable member 300 while the movable member 300 is fixed by the fixing means 360, the fixed state of the movable member 300 by the fixing means 360 is released, and the pressing part 450 presses the fixing means 360 toward the helmet body 100 so that the pivot guided part 430 and the first pivot support part 340 are engaged with each other. In an embodiment of the present invention, the pressing part 450 may become a protrusion protruding inward from the inner surface of the pivot body 410 at a lower side of the cam 420. In more detail, while entering the pressing part pivot slot 261 a through the expanded portion 261 a of the pressing part pivot slot 261 of the fixing member 200, the pressing part 450 presses the fixing means 360 to release the locking state between the fixing means 360 and the step 262, and during the pivot process of the pivot member 400, it may pivot in an engaged state with the pressing part pivot slot 261.
The pressing member 500 is disposed to elastically support the cam 420 on the fixing member 200 and press the cam 420 rearward. The pressing member 500 is arranged on the pressing member arrangement part 230 of the fixing member 200 to press the cam 420 rearward, and presses the cam 420 to allow the cam 420 to move stably within the cam seat part 220 when the pivot of the cam 420 is performed inside the cam seating part 220 and the pivot axis moves forward or backward. In an embodiment of the present invention, the pressing member 500 may receive an elastic force from the first elastic member 600.
The pressing member 500 may include a pressing body 510 which is disposed inside the pressing member arrangement slot 231 and of which outer side is supported by the cover bridge 232. A rear sidewall of the pressing body 510 is in contact with the cam 420. In addition, a front sidewall of the pressing body 510 is supported by the first elastic member 600 arranged in the first elastic member arrangement groove 233 of the fixing member 200. In addition, the rear sidewall of the pressing body 510 may be formed to be inclined downward from the front toward the rear. This shape is formed in consideration of the pivot profile of the cam 420, and allows the support for the cam 420 to be more stably performed when pivoting from the first position to the second position.
The pressing member 500 may further include a locking sill 520 protruding outward from a rear portion of the pressing body 510. The locking sill 520 is formed so that the pressing member 500 is pressed forward by the cam 420 and caught by the cover bridge 232 when moving forward, thereby determining the displacement limit of the pressing member 500, and provides displacement stability to the pressing member 500.
The first elastic member 600 is disposed between the fixing member 200 and the pressing member 500 to elastically support the pressing member 500. In an embodiment of the present invention, the first elastic member 600 may be inserted into the first elastic member arrangement groove 233 of the fixing member 200. In this case, the front end of the first elastic member 600 may be supported by the first elastic member arrangement groove 233, and the rear end of the first elastic member 600 may be supported by the pressing member 500. For example, the first elastic member 600 may be formed of a coil spring.
The second elastic member 700 is disposed between the fixing member 200 and the movable member 300 to press the movable member 300 rearward. In an embodiment of the present invention, the front side of the second elastic member 700 is supported by the first support part 270 of the fixing member 200, and the rear side of the second elastic member 700 is supported by the second support part 330 of the movable member 300. For example, the second elastic member 700 may be formed of a coil spring.
As described above, according to the present invention, the first elastic member 600 elastically supports the cam 420 of the pivot member 400 through the pressing member 500, and the second elastic member 700 presses the movable member 300 backward, so that the elastic support of the pivot member 400 on the pivot axis and the elastic support of the movable member 300 may be performed independently by separate members. This structure allows the pressing force for the cam 420 required to stabilize the pivot axis when the cam 420 is pivoted and the pressing force required to properly maintain the engagement between the pivot member 400 and the movable member 300 even when the pivot axis moves forward or backward to be distributed and provided independently. Accordingly, the sense of use, stability, and reliability associated with the pivot of the pivot member 400 may be improved.
Hereinafter, the pivot of the pivot member 400 and the detachment of the pivot member 400 in the helmet according to an exemplary embodiment of the present invention will be described.
FIG. 7 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 exemplary embodiment of the present invention. For clear description of the pivot process, the pivot body 410 of the pivot member 400 is omitted in FIG. 7 .
Referring to FIG. 7 , the pivot member 400 may pivot from a first position to a second position. In this case, the first position is in a state in which the pivot member 400 closes the opening 100 a of the helmet body 100, and may be indicated as ‘0 degrees’ based on the pivot angle. In addition, the second position is in a state in which the pivot member 400 is completely opened, and may be indicated as ‘55 degrees’. When the pivot member 400 pivots from the first position to the second position, the pivot member 400 and the movable member 300 are displaced forward as the pivot axis moves forward in at least some sections.
Referring to FIGS. 4, 5, and 7 , when the pivot member 400 is at the first position, as for the cam 420, the first cam surface 421 between the first corner part 420 a and the second corner part 420 b may be supported by the first support surface 222 at the rear side of the cam seat part 220, and the third corner part 430 c may be in contact with the pressing member 500. When the pivot member 400 pivots from the first position to the second position, the first cam surface 421 is spaced apart from the first support surface 222, the first corner part 420 a of the cam 420 is in contact with the first support surface 222 and moves downward, the second corner part 420 b of the cam 420 is in contact with the fourth support surface 225 and moves, and the third corner part 420 c is in contact with the rear surface of the pressing member 500 and moves upward. In addition, when the pivot member 400 is at the second position, as for the cam 420, the second cam surface 422 between the second corner part 420 b and the third corner part 420 c may be in contact with the pressing member 500, and the first corner part 420 a may be in contact with the first support surface 222.
In an embodiment of the present invention, the cam 420 of the pivot member 400 is always pressed backward by the pressing member 500 inside the cam seat part 220. Accordingly, the cam 420 is always supported by the support surface of the cam seat part 220 and the pressing member 500 at any position between the first position and the second position. Accordingly, during the pivot of the pivot member 400, the cam 420 maintains a pivot path corresponding to the designed pivot profile, and the sense of use and reliability of the pivot may be secured during the pivot.
In an embodiment of the present invention, according to the pivot profile provided by the cam 420 and the cam seat part 220, the pivot axis moves forward until the pivot member 400 reaches the second position from the first position. In general, interference with the helmet body 100 may occur when the pivot member 400 is pivoted due to the structure of the helmet, and interference between the pivot member 400 and the helmet body 100 may be avoided by displacing the pivot axis forward during the pivot process, and the pivot of the pivot member 400 may proceed smoothly and harmoniously.
Meanwhile, the pivot profile provided by the cam 420 of the pivot member 400 and the cam seat part 220 of the fixing member 200 may be configured such that the pivot axis moves downward or upward to a predetermined position when the pivot member 400 is pivoted, and may be configured such that the pivot axis moves upward or downward when additionally pivoting from the predetermined position. This structure and operation also allow the interference between the helmet body 100 or an attachment attached to the helmet body 100 and the pivot member 400 to be avoided.
In an embodiment of the present invention, the pivot profile provided by the cam 420 of the pivot member 400 and the cam seat part 220 of the fixing member 200 is configured such that the third cam surface 423 of the cam 420 descends along the second support surface 223 of the cam seat part 220 that is inclined downward from the rear toward the front until it reaches from the first position to a predetermined position (e.g., 27.5 degrees of pivot angle). Accordingly, the pivot axis moves forward and at the same time moves downward until the cam 420 pivots from the first position to a predetermined position. In addition, the pivot profile provided by the cam 420 of the pivot member 400 and the cam seat part 220 of the fixing member 200 is configured such that the third cam surface 423 of the cam 420 ascends along the third support surface 224 of the cam seat part 220 that is inclined upward from the rear toward the front until it reaches from the predetermined position to the second position. Accordingly, the pivot axis moves forward and at the same time moves upward until the cam 420 reaches the second position at 30 degrees.
Meanwhile, the pivot guided part 430, the pivot auxiliary part 440, and the pressing part 450 of the pivot member 400 are engaged and supported by the first pivot support part 340, the second pivot support part 350, and the pressing part pivot part 260 during the entire pivoting process of the pivot member 400 from the first position to the second position. Accordingly, separation of the pivot member 400 is prevented, and the pivot member 400 may be stably pivoted.
Through the structure and operation as described above, the pivot member 400 may proceed smoothly and harmoniously without interfering with the helmet body 100 during the pivot process of the pivot member 400.
FIG. 8 is a view illustrating a separation process of a pivot member of a helmet according to an exemplary embodiment of the present invention. For clear description of the separation process of the pivot member 400, the pivot body 410 of the pivot member 400 is omitted in FIG. 8 .
Referring to FIGS. 3, 4, and 8 , in the helmet according to an exemplary embodiment of the present invention, when the movable member 300 reaches a predetermined position in front of the fixing member 200 from the second position (the pivot angle ‘55 degrees’ in an embodiment of the present invention), the engagement between the pivot guided part 430 and the first pivot support part 330 is released, so that the pivot member 400 may be separated. When the movable member 300 reaches a predetermined position in front of the fixing member 200 from the second position, the engagement between the pivot auxiliary part 440 of the pivot member 400 and the second pivot support part 350 of the movable member 300 may also be released. In addition, the pressing part 450 is also located in the expanded part 261 a of the pressing part pivot slot 261 of the pressing part pivot part 260 so that the engagement between the second pivot support part 350 and the pressing part pivot part 260 of the fixing member 200 can be released.
In this regard, as described above, when the movable member 300 reaches a predetermined position in front of the fixing member 200 from the second position, the movable member 300 may be fixed as the fixing means 360 of the movable member 300 is caught in the step 262 of the fixing member 200. In addition, the fixed state of the movable member 300 like this may be resolved by the pressing part 450 pressing the fixing means 360 inward when the pivot member 400 is coupled to release the locking state between the step 262 and the fixing means 360.
Although exemplary embodiments of the present invention have been described, the idea of the present invention is not limited to the embodiments set forth herein. Those of ordinary skill in the art who understand the idea of the present invention may easily propose other embodiments through supplement, change, removal, addition, etc. of elements within the same idea, but the embodiments will be also within the idea scope of the present invention.

Claims

1. A helmet, comprising:

a helmet body configured to surround a user's head;

a fixing member fixed to a side surface of the helmet body and having a cam seat part;

a movable member coupled to the fixing member so as to be linearly movable forward or backward;

a pivot member which has a cam pivotally seated on the cam seat part and is disposed to be engaged with the movable member so as to be pivotable around the cam as a pivot axis; and

a pressing member disposed in the fixing member to elastically support the cam and press the cam backward,

wherein when the pivot member pivots from a first position toward a second position, the pivot axis moves forward and the pivot member and the movable member are accordingly displaced forward.

2. The helmet of claim 1, wherein the cam seat part and the cam have a profile in which the cam is displaced forward when the pivot member pivots from the first position toward the second position.

3. The helmet of claim 2,

wherein the cam has a triangular shape including a first corner part, a second corner part, and a third corner part, and the cam seat part provides one or more support surfaces surrounding the cam, and

wherein in the cam at the first position, a first cam surface between the first corner part and the second corner part is supported by a first support surface on the rear side of the cam seat part, and the third corner part is in contact with the pressing member.

4. The helmet of claim 3,

wherein the pressing member is disposed on the front side of the cam seat part, and

wherein in the cam at the second position, a second cam surface between the second corner part and the third corner part is in contact with the pressing member, and the first corner part is in contact with the first support surface.

5. The helmet of claim 3, wherein the first corner part, the second corner part, and the third corner part protrude toward a cam seating surface of the cam seat part so as to be in contact with the cam seating surface, and the cam seating surface is not in contact between the first corner part and the second corner part, between the second corner part and the third corner part, and between the third corner part and the first corner part.

6. The helmet of claim 1,

wherein the fixing member further comprises a pivot guide part for providing a pivot profile of the pivot member in front of the fixing member, and

wherein the pivot member further comprises a pivot guided part guided by the pivot guide part during pivoting with the cam as a pivot axis.

7. The helmet of claim 6, wherein the movable member comprises a first pivot support part engaged with the pivot guided part to prevent the pivot member from being separated when the pivot member is pivoted.

8. The helmet of claim 7, wherein when the movable member reaches a predetermined position in front of the fixing member at the second position, the engagement between the pivot guided part and the first pivot support part is released to separate the pivot member.

9. The helmet of claim 8, wherein the movable member further comprises a fixing means for fixing the movable member in a state in which the movable member reaches the predetermined position in front.

10. The helmet of claim 9, wherein at least a part of the fixing means protrudes outward from the helmet body by elasticity to fix the movable member in a state in which the movable member reaches the predetermined position in front.

11. The helmet of claim 10, wherein the pivot member further comprises a pressing part wherein when it is coupled to the movable member in a state in which the movable member is fixed by the fixing means, the fixed state of the movable member by the fixing means is released to press the fixing means toward the helmet body so that the pivot guided part and the first pivot support part are engaged with each other.

12. The helmet of claim 11, wherein the fixing member further comprises a pressing part pivot part for providing a pivot path of the pressing part when the pivot member is pivoted.

13. The helmet of claim 7,

wherein the pivot member further comprises a pivot auxiliary part at a position spaced rearward from the pivot guided part at a predetermined interval, and

wherein the movable member further comprises a second pivot support part engaged with the pivot auxiliary part to prevent the pivot member from being separated when the pivot member is pivoted.

14. The helmet of claim 1, further comprising a first elastic member disposed between the fixing member and the pressing member to elastically support the pressing member.

15. The helmet of claim 1, further comprising a second elastic member disposed between the fixing member and the movable member to press the pressing member rearward.