KR100875460B1 - Chin protection bar opening/closing mechanism for safety helmet - Google Patents

Abstract

A device of opening or closing a jaw protector is provided to simplify structure of the device while preventing the jaw protector and other portions of a helmet from bumping against each other in a process of opening or closing a jaw protector. An opening/closing device of a jaw protector equipped at a helmet cap provided with a front opening comprises: a fixing part(400) including a variable shaft guide(410) formed in the form of a slot and a rotary guide(430) formed approximately perpendicularly to the variable shaft guide; and a rotary part(500) including a first coupling portion(510) slidingly inserted and coupled onto the variable shaft guide and a second coupling portion(520) slidingly inserted and coupled onto the rotary guide. The second coupling portion perform a straight reciprocating motion in the rotary guide. The first coupling portion performs a straight reciprocating motion in the variable shaft guide according as the second coupling portion perform the straight reciprocating motion.

Description

Chin guard opening and closing device for helmets {CHIN PROTECTION BAR OPENING / CLOSING MECHANISM FOR SAFETY HELMET}

The present invention relates to an opening and closing device of the jaw protector of the helmet, and more particularly, to a opening and closing device of the jaw protector having a simple structure while preventing the jaw guard and other parts of the helmet from colliding with each other in the process of opening and closing the jaw guard.

In general, a motorcycle helmet is provided with a front opening for securing a forward view, and is provided with a shield so as not to be obstructed by the front wind caused by driving and to solve the respiratory disorder.

Among these helmets, there is a full face type (Full-Face Helmet) having a jaw protector integrally with the helmet to protect the jaw, and an openable type that can open and close the jaw protector.

The jaw guard in the opening and closing type that can open and close the jaw guard is raised to the top of the helmet when it is pivoted rearward and serves to protect the jaw while being fixed by the locking device when pivoted forward.

The pivoting action of the jaw guard is to rotate the hinge shafts provided on both the left and right sides of the helmet to the point, and in the case of simply rotating the jaw guard, the opening and closing of the jaw guard collides with the front of the helmet or other attachments such as vent fittings. There was a downside.

In order to solve this problem, when the jaw protector is opened and closed, the jaw protector should be rotated in a state spaced apart from the helmet by a predetermined interval, and a conventional jaw protector opening and closing device employing such a structure is shown in FIG. 1.

1 is an exploded perspective view of a conventional jaw protector opening and closing device.

As shown in FIG. 1, the conventional jaw protector opening / closing device 40 includes a fixing plate 41 fixed to the helmet body, an operation plate 42 fixed to the jaw protector, a planetary gear 43, a rotation lever 44, and the like. It consists of. When the wearer rotates the jaw guard backward, the upward guide protrusion 42a of the operation plate 42 is rotated while being fitted in the arc-shaped guide hole 41a of the fixing plate 41. At this time, since the ridge 41b is formed in a part of the interruption of the arc-shaped guide hole 41a in the direction opposite to that of the arc, when the upward guide protrusion 42a reaches the upper end of the ridge 41b ( That is, when the upward guide protrusion 42a is located at the lowest point of the arc-shaped guide hole 41a), the operation plate 42 is in a state of being spaced apart from the fixed plate 41 by a predetermined interval, and, as a result, the jaw guard is separated by a predetermined interval. Spaced from the helmet body.

However, the conventional jaw guard opening and closing device 40 has the advantage that the jaw guard is rotated spaced apart from the helmet by a predetermined interval, but there are various types of parts constituting the jaw guard opening and closing device and the connection structure between the parts Due to the complexity, the manufacturing cost of the helmet increases and the weight of the entire helmet increases.

One embodiment of the present invention is derived to solve the above-mentioned problems of the prior art, while providing a jaw guard opening and closing device having a simple structure while being able to rotate the jaw guard by a predetermined interval away from the helmet. It is a task.

As a technical means for achieving the above object, according to the first aspect of the present invention, the opening and closing device of the jaw protector provided in the helmet cap provided with a front opening, the variable shaft guide fixed to the helmet cap, formed in the long hole and A first coupling part fixed to the jaw guard and a fixed part having a rotation guide formed substantially perpendicular to the variable shaft guide, and a first coupling part slidably fitted to the variable shaft guide and a sliding fit to the rotation guide. And a rotating part having two coupling parts, wherein the rotating guide has a linear shape, the second coupling part linearly reciprocates in the rotation guide, and the first coupling part performs linear reciprocating motion as the second coupling part performs a linear reciprocating motion. Opening and closing the jaw guard, characterized in that the linear reciprocating motion in the variable shaft guide Provide a device.

Further, when the second engaging portion moves from one end of the pivot guide to the middle end, the first engaging portion is lifted from the bottom of the variable shaft guide to the upper side, and the second engaging portion is moved from the middle of the pivoting guide to the other end. At the same time, the first coupling part may be lowered from the upper side to the lower side of the variable shaft guide.

In addition, the first coupling portion of the pivoting portion has a first shaft portion is connected to the first plate and the lower portion of the first plate, the second coupling portion is a second plate and the second portion connected to the lower portion of the second plate It can be provided with two shaft parts.

The variable shaft guide of the fixing part may have a first hole into which the first plate is inserted and a width substantially the same as that of the first shaft part, so that the first coupling part passing through the first hole may perform linear motion. It may be made of a second hole formed long.

In addition, a stepped jaw is provided in the pivoting guide of the fixing part so that the second plate passing through the pivoting guide slides in a state of being caught by the jaw, thereby preventing the second coupling part from being separated from the pivoting guide. Can be.

In addition, when the first coupling portion is located at one end opposite to the first hole of the second hole, the second coupling portion may be mounted to be elastically supported on the stepped jaw.

In addition, a stopper protrusion for limiting the rotation of the jaw protector is formed on one side of the rotating part, a stopper ring corresponding to the stopper protrusion may be formed on one side of the fixing part.

According to a second aspect of the present invention, a helmet cap having a front opening, a jaw guard that is rotatably fixed to the helmet cap to protect a wearer's chin, and acts as a pivoting axis of the jaw guard, from the helmet cap And a jaw guard opening and closing device for rotating by spaced by a predetermined interval, wherein the jaw guard opening and closing device is fixed to the helmet cap and has a variable shaft guide formed of a long hole and a rotation guide formed substantially perpendicular to the variable shaft guide. Branches are fixed to the jaw guard and includes a pivot having a first coupling portion slidably fitted to the variable shaft guide and a second coupling portion slidably fitted to the pivot guide, the pivot The guide has a linear shape, and the second coupling portion has a linear reciprocating motion in the rotation guide. And the first attachment portion provides a safety helmet which comprises a linear reciprocating motion within said adjustable shaft guide as the second engaging portion linear reciprocating motion.

According to one embodiment of the present invention, the jaw guard is rotated spaced apart from the helmet body by a predetermined interval, it is possible to prevent the collision between the jaw guard and the helmet body and at the same time provide a simple opening and closing device of the jaw guard. Can be.

In addition, according to an embodiment of the present invention, by adopting a simple jaw protector opening and closing device, the manufacturing cost of the helmet can be reduced and further reduce the weight of the entire helmet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

2 is a perspective view of a safety helmet according to an embodiment of the present invention.

As shown in FIG. 2, the safety helmet according to the embodiment of the present invention includes a helmet cap 100 having a front opening 600, a jaw protector 700 for protecting a wearer's chin while driving, and a jaw protector ( The locking device 200 and the jaw guard 700 that secure the jaw guard 700 to the helmet cap 100 when the 700 is fully pivoted forward of the helmet cap 100 are spaced a predetermined distance from the helmet cap 100. It consists of a jaw guard opening and closing device 300 so as to be spaced apart as much as possible.

The helmet cap 100 serves as a skeleton for maintaining the shape of the helmet as the outermost part of the helmet, and should have sufficient strength to maintain the original appearance without being deformed by external impact, while being too rigid If it is high, it may be broken in a collision, so a material having toughness should be used.

The jaw guard 700 is raised to the top of the helmet when rotated to the rear, and serves to protect the jaw while being fixed to the helmet cap 100 by the locking device 200 when rotated forward.

The jaw guard opening and closing device 300 serves as a pivotal axis of the helmet cap 100 of the jaw guard 700 and at the same time serves to space the jaw guard 700 from the helmet cap 100 by a predetermined distance.

3 is an exploded perspective view of the jaw protector opening and closing apparatus 300 according to an embodiment of the present invention.

As shown in FIG. 3, the jaw protector opening / closing device 300 is fixed to the left and right sides of the helmet cap 100 and the left and right extensions 710 of the jaw protector 700. It is comprised by the rotation part 500 fixed to the inside of the figure.

The fixing part 400 is a stopper protrusion 440 for guiding the rotation stop point of the variable shaft guide 410 of the long hole shape, the rotation guide 430 formed on the opposite side of the variable shaft guide 410 and the jaw guard 700 Consists of

The variable shaft guide 410 may be composed of a first hole 411 through which the first coupling part of the pivoting part 500 to be described later and a second hole 412 formed so as to rotate and linearly move the first coupling part. Can be. The width of the second hole 412 is preferably formed to be smaller than the width of the first hole 411, which is a straight line through the second hole 412 after the first coupling part passes through the first hole 411. This is to prevent the first coupling portion from being easily separated from the variable shaft guide 410 when exercising.

In addition, the rotating guide 430 is provided with a stepped jaw 432, and the second engaging portion of the rotating part 500, which will be described later, passes through the rotating guide 430 and is caught by the stepped jaw 432 and rotated. It cannot be easily separated from the guide 430.

The stopper protrusion 440 is formed to protrude outward from one side of the fixing part 400 and limits the maximum rotation stop point to the rear upper end of the rotating part 500. That is, when the rotation part 500 reaches the maximum rotation point to the rear upper end of the helmet cap 100, the stopper ring formed in the rotation part 500 described later in the stopper protrusion 440 formed on the fixing part 400. Will be fitted. Thus, the jaw guard 700 no longer pivots to the rear top and stops at the rear top point of the helmet cap 100.

In addition, the fixing unit 400 may further include a coupling means 450, the fixing unit 400 is fixed to the helmet cap 100 by the coupling means 450. In one embodiment of the present invention, although the coupling means 450 has the first, second, third coupling portions 451, 452, 453 and forms a screw thread as the coupling means 450, and the screw is engaged from the outside, as an example, The means 450 is not limited to this screwing, it is sufficient that the fixing portion 400 can be fixed to the helmet cap 100.

On the other hand, the rotating part 500 is fitted to the variable shaft guide 410 of the fixing part 400, the first coupling part 510 and the rotating guide 430 of the fixed part 400 to rotate and linear movement It consists of a stopper ring 530 which is caught by the stopper projection 440 of the second engaging portion 520 and the fixed portion 400 to perform a linear motion to limit the rotation of the rotating part 500.

The first coupling portion 510 has a circular first plate 511 and a first shaft portion 512 extending from a lower portion of the first plate 511, and the second coupling portion 520 has a circular shape. And a second shaft portion 522 extending from a lower portion of the second plate 521 and the second plate 512.

In addition, the stopper ring 530 is formed to protrude outward from one side of the rotating part 500, the stopper ring 530 of the rotating part 500 at the rearmost pivot point of the jaw guard 700 as described above By locking the stopper protrusion 440 of the fixing part 400, the jaw protector 700 can no longer rotate to the rear upper end of the helmet cap 100.

In addition, the pivoting part 500 may further include a coupling means 540. The pivoting part 500 is coupled to the inside of the left and right extensions 710 of the jaw guard 700 by the coupling means 540. Can be fixed. In one embodiment of the present invention, the coupling means 540 has the first, second, and third coupling portions 541, 542, 543 and forms a screw thread as the coupling means 540, and the screw is engaged from the outside. Like the coupling means 450 of the government 400, this coupling means 540 is not limited to screwing, and the pivot 500 is fixed to the left and right extensions 710 of the jaw guard 700. It is enough if you can.

4 is a side view of the pivoting part 500 of the jaw protector opening and closing device 300 according to an embodiment of the present invention.

As shown in FIG. 4, the first shaft portion 512 and the second shaft portion 522 are formed on the base portion 501 with the same thickness, and have a circular first plate 511 and a second plate 521. ) Are formed on the first shaft portion 512 and the second shaft portion 522, respectively. That is, a predetermined gap is generated between the base portion 501 and the first and second plates 511 and 521. Through this gap, the rotating part 500 is fitted to the fixing part 400, and the process of coupling the rotating part 500 and the fixing part 400 to each other will be described in detail with reference to FIG. 5.

5 is a detailed coupling diagram of the fixing part 400 and the rotating part 500 of the jaw protector opening and closing device 300 according to an embodiment of the present invention.

First, the first coupling means 510 of the rotating part 500 is inserted into the variable shaft guide 510 of the fixing part 400. More specifically, the first plate 511 of the first coupling means 510 is passed through the first hole 411 of the variable shaft guide 410.

At this time, the first plate 511 is formed on the base portion 501 at a predetermined interval by the thickness of the first shaft portion 512, and the first plate 511 is formed of the first shaft portion 512 and the variable shaft guide 410. Since the widths of the two holes 412 are approximately the same, the first coupling part 510 is the variable shaft guide 410 while the first plate 511 passes through the first hole 411 of the variable shaft guide 410. It can be moved to the second hole 412 of the).

Thus, if the first coupling portion 510 is located in the second hole 412, the peripheral portion of the second hole 412 is sandwiched between the first plate 511 and the base portion 501, the first coupling portion The 510 may rotate and linearly move through the variable shaft guide 410, but the first coupling part 510 may not be easily separated from the variable shaft guide 410.

When the first coupling portion 510 moves to one end of the second hole 412 of the variable shaft guide 410, the second coupling portion 520 is positioned around the rotation guide 430. More specifically, the tip of the second plate 521 toward the first plate 511 is in contact with the stepped jaw 432 formed on the rotation guide 430.

At this time, when a force is applied to the jaw 432 of the rotation guide 430, a slight deformation occurs, and when the second coupling part 520 is pushed into the deformed space, the second plate 521 rotates. Will pass through.

On the other hand, since the gap is formed between the second plate 521 and the base portion 501 by the thickness of the second shaft portion 522, when the second plate 521 passes through the rotation guide 430, the rotation guide 430 Jaw 432 of the) is sandwiched between the second plate 521 and the base portion 501, and as a result, the second coupling portion 520 is not easily separated from the rotation guide 430.

Next, the operation of the jaw protector opening and closing device 300 according to an embodiment of the present invention will be described.

Figure 6 is a partial side view showing a state before the operation of the jaw protector opening and closing device 300 according to an embodiment of the present invention, Figure 7 is a partial side view showing a state in operation, Figure 8 shows a state after the operation Side view.

First, as shown in FIG. 6, when the user presses a lever (not shown) of the locking device 200 while wearing a helmet, the locking state of the helmet cap 100 and the jaw protector 700 is released and the jaw protector 700 is made rotatable. In addition, the second coupling portion 520 of the pivot 500 is located at the end of the rotation guide 430, the first coupling portion 510 is the lowest point of the second hole 412 of the variable shaft guide 410 Located in

When the jaw guard 700 is lifted about halfway, the second coupling part rotates together with the pivoting part 500 fixed to the left and right extensions 710 of the jaw guard 700 as shown in FIG. 7. 520 is located at the middle of the rotation guide 430. However, the second coupling part 520 fitted to the rotation guide 430 makes a linear motion, not a rotational motion, around the first coupling part 510 and the first coupling part 510 and the second coupling part 520. Since the distance between them is constant, when the second coupling part 520 moves along the rotation guide 430, the first coupling part 510 also rotates along the length direction of the second hole 412 of the variable shaft guide 410. And linear motion.

Therefore, when the second coupling portion 520 is located at the middle of the rotation guide 430, the first coupling portion 510 is positioned at the uppermost point of the second hole 412, so that the jaw guard 700 is naturally a helmet. The cap 100 is spaced apart by a predetermined interval and is lifted up.

Then, when the jaw guard 700 is further lifted up, as shown in FIG. 8, the second coupling part 520 is positioned at the end of the rotation guide 430 opposite to the initial position, as described above. The first coupling part 510 is again located at the lowest point of the second hole 412 of the variable shaft guide 410, and the jaw guard 700 is maintained lowered toward the helmet cap 100 again. will be.

The jaw guard 700 is rotated to the rear of the helmet cap 100 through the operation as described above, the operation is reversed when rotating forward.

In addition, in the state in which the jaw guard 700 is completely rotated to the rear end, the stopper ring 530 of the pivoting part 500 is caught by the stopper protrusion 440 of the fixing part 400 to maintain the pivoted state in the rearmost direction. It becomes possible.

Thus, according to one embodiment of the present invention, by providing a simple structure of the jaw guard opening and closing device having only a fixed portion and a rotating portion, rather than a complicated jaw guard opening and closing device, the jaw guard is lifted to the rear of the helmet cap As it is pivoted and lifted, it is pivoted forward of the helmet cap to prevent the jaw guard from colliding with the helmet cap.

In addition, according to an embodiment of the present invention, since the jaw protector opening and closing device has a simple structure can reduce the helmet manufacturing cost, and can further reduce the weight of the entire helmet.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is an exploded perspective view of a conventional jaw protector opening and closing device.

2 is an overall perspective view of the jaw protector and the helmet employing the same according to an embodiment of the present invention.

3 is an exploded perspective view of the jaw protector opening and closing apparatus according to an embodiment of the present invention.

Figure 4 is a side view of the rotating part of the jaw protector opening and closing apparatus according to an embodiment of the present invention.

Figure 5 is a detailed coupling of the fixing portion and the rotating portion of the jaw protector opening and closing device according to an embodiment of the present invention.

6 is a partial side view showing a state before the operation of the jaw protector opening and closing device according to an embodiment of the present invention.

7 is a partial side view showing an operating state of the jaw protector opening and closing device according to an embodiment of the present invention.

8 is a partial side view showing a state after the operation of the jaw protector opening and closing device according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

40: jaw protector opening and shutting device 41: fixing plate

42: operation plate 43: planetary gear

44: rotation lever 100: helmet cap

200: locking device 300: jaw guard opening and closing device

400: Fixed part 410: Variable axis guide

430: rotation guide 432: jaw

440: stopper protrusion 500: rotating part

510: first coupling portion 511: first plate

512: first shaft portion 520: second coupling portion

521: second plate 522: second shaft portion

530: stopper ring 600: front opening

700: chin protector

Claims (8)

The opening and closing device of the jaw protector provided in the helmet cap provided with a front opening, A fixed portion fixed to the helmet cap and having a variable shaft guide formed by a long hole and a rotation guide formed substantially perpendicular to the variable shaft guide; It is fixed to the jaw guard, and includes a rotating portion having a first coupling portion slidably fitted to the variable shaft guide and a second coupling portion slidably fitted to the rotation guide, The rotation guide is straight, The second coupling part linearly reciprocates in the pivot guide, and the first coupling part linearly reciprocates in the variable shaft guide as the second coupling part reciprocates linearly. Device. The method of claim 1, When the second engaging portion moves from one end of the pivot guide to the middle end, the first engaging portion is lifted from the lower side of the variable shaft guide to an upper side, and when the second engaging portion moves from the middle of the pivoting guide to the other end, Jaw guard opening and closing device characterized in that the first coupling portion is lowered from the upper side to the lower side of the variable shaft guide. The method according to claim 1 or 2, The first coupling portion of the pivoting portion has a first shaft portion connected to the first plate and a lower portion of the first plate, and the second coupling portion is a second shaft portion connected to the lower portion of the second plate and the second plate. Jaw protector opening and closing device comprising a. The method according to claim 1 or 2, The variable shaft guide of the fixing part has a first hole into which the first plate can be inserted and a width substantially the same as that of the first shaft part, and is elongated to allow linear movement of the first coupling part passing through the first hole. Jaw guard opening and closing device consisting of a second hole. The method of claim 4, wherein A stepped jaw is provided in the pivoting guide of the fixing part to prevent the second coupling part from being separated from the pivoting guide by sliding the second plate passing through the pivoting guide in a state of being caught by the jaw. Jaw protector switchgear. The method of claim 5, wherein And the second coupling part is mounted to be elastically supported on the stepped jaw when the first coupling part is located at one end opposite to the first hole of the second hole. The method according to claim 1 or 2, A stopper protrusion for limiting the rotation of the jaw protector is formed at one side of the pivot part, and a stopper ring corresponding to the stopper protrusion is formed at one side of the fixing part. A helmet cap having a front opening; A jaw protector which is rotatably fixed to the helmet cap to protect the wearer's jaw; At the same time as the rotation axis of the jaw guard, including a jaw guard opening and closing device to rotate by a predetermined distance from the helmet cap, The jaw protector opening and closing device A fixed portion fixed to the helmet cap and having a variable shaft guide formed by a long hole and a rotation guide formed substantially perpendicular to the variable shaft guide; It is fixed to the jaw guard, and includes a rotating portion having a first coupling portion slidably fitted to the variable shaft guide and a second coupling portion slidably fitted to the rotation guide, The rotation guide is linear, the second coupling portion linearly reciprocates in the rotation guide, and the first coupling portion linearly reciprocates in the variable shaft guide as the second coupling portion linearly reciprocates. Safety helmet characterized in that.

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