KR20160028277A

KR20160028277A - Safety helmet

Info

Publication number: KR20160028277A
Application number: KR1020140117178A
Authority: KR
Inventors: 조용보
Original assignee: 한국전력공사
Priority date: 2014-09-03
Filing date: 2014-09-03
Publication date: 2016-03-11

Abstract

The present invention relates to a safety helmet including: a helmet body (11) which accommodates a user′s head; a chin strap (13) which is worn on a user′s face and maintains the user′s head to be accommodated by the helmet body (11); and cord reels (21) which are arranged on both sides of the helmet body (11), allow both end portions of the chin strap (13) to be wound therearound by rotation, and automatically wind the chin strap (13) after a user pulls down the wound chin strap (13) by the length as user desires and then releases the chin strap (13). Wearing of the safety helmet is beneficial as the safety helmet has a structure in which the chin strap is automatically worn and fastened on the helmet body.

Description

Safety helmet {SAFETY HELMET}

The present invention relates to a helmet, and more particularly, to a helmet which is easy to wear a chin strap and a chin strap.

A helmet is a hat worn on the head to prevent the risk of falling objects when the worker is working. Construction sites, shipyards, factories, and other construction sites are required to wear helmets by minimizing the damage of workers by falling objects.

The helmet consists largely of a mother body used on the head of the worker and a chin strap provided on both sides of the mother body to fix the mother body so that it is not peeled off from the worker's head.

However, since the conventional helmet is a structure in which the mother's head is worn on the head and the chin strap provided on both sides of the mother body is detachably fastened to each other and then tightened, when the safety hat is not used and the chin strap is not fastened or the chin strap is fastened, There is a problem that the helmet is peeled off and the helmet is not worn when the situation arises.

Domestic Registration Practice No. 0428873 (Name: Safety helm for construction site, date of announcement: October 16, 2006)

The object of the present invention is to provide a helmet which improves the ease of use by easily wearing a chin strap and a chin strap, and is constructed so that a chin strap can be worn and a chin strap can not be tightened, .

According to an aspect of the present invention for achieving the above object, the present invention provides a hair clipper comprising a mother body in which a head of a wearer is accommodated, a chin strap for fixing a state in which the wearer's head is housed in the mother body, And a pair of upper and lower chin straps which are provided on both sides of the mother body and on which both ends of the chin strap are wound by rotation and which pull the pulled chin strap downward by the wearer's desired length and release the pulled- Includes a cord drill that automatically pulls the pulled jaw strap.

A guide roller provided on both sides of the matrix with a height difference from the nail drill to guide a chin strap drawn out of the nail drill or wound around the cord reel; And a brake lever provided at both sides of the mother body for stopping or rotating the rotation of the nail drill.

Wherein the brake lever is provided at an end portion thereof and includes a rotating roller cooperating with the guide roller for guiding the downward pulling-out of the chin strap, an elastic member for pressing the rotating roller in a downward direction, The rotating roller is moved upward to engage with the guide roller.

The nail drill, the guide roller, and the rotating roller are provided on both sides of the matrix via brackets fixed to both sides of the matrix.

Wherein the bracket includes a first extension portion at an upper portion on which the nail drill is mounted, a second extension portion below the first extension portion to which the guide roller is mounted, and a second extension portion at a lower portion of the second extension portion Three extension portions.

In the present invention, when the jaw strap is pulled downward and the mother body is worn on the head and the pulling force of the jaw strap is removed, the jaw strap is automatically wound on the nose drill and is worn on the wearer's face to maintain the tension .

Therefore, there is an effect that the problem that the helmet is separated from the head or separated from the head in a state in which the helmet is worn is prevented at the source.

In addition, in the present invention, when the mother is worn while ignoring the wearing of the chin strap, the chin strap enters into the mother body and is no longer pulled out from the chin drill.

Therefore, anyone who wears the helmet has a structure that does not wear the jaw strap of the helmet or can not tighten the jaw strap so that the utility value of wearing the helmet can be increased.

1 is a perspective view showing a helmet according to the present invention;
FIG. 2 is a perspective view showing a cord drill, a guide roller, and a brake lever portion according to an embodiment of the present invention; FIG.
3 is a front view showing a helmet according to an embodiment of the present invention.
4 is a view illustrating a structure in which a chin strap is worn and fastened according to an embodiment of the present invention.
FIG. 5 is a view showing a structure in which a helmet is difficult to wear when a helmet is worn by ignoring a chin strap according to an embodiment of the present invention.
6 is a view showing the principle of operation of a brake lever as an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The helmet of the present invention is constructed in such a structure that it is not necessary to wear a jaw strap and to fasten the jaw strap when the helmet is worn.

As shown in FIGS. 1 to 3, the safety helmet 10 includes a base 11 in which a head of a wearer is accommodated, and a shoulder strap 11 which is worn on the wearer's face to fix a state in which the wearer's head is received, And a chin strap 13 which is provided at both sides of the base 11 and both ends of the chin strap 13 are wound and wound by rotation is pulled down by a desired length by the wearer and pulled out, And a nose cord 21 that automatically pulls the pulled-up chin strap when the pulled-out state is released.

The matrix 11 is made of a hard synthetic resin material for protecting the head from external impact or falling objects. Although not shown, a shock absorber is provided inside the mother body 11 to enable shock mitigation. In addition, a length adjuster for adjusting the length of the head restraint and the head restraint for improving the fit feeling may be provided inside the matrix 11.

The chin strap 13 is for preventing the matrix 11 from being peeled off.

The chin strap 13 is provided at its center with a chin rest portion 15 which is in close contact with the wearer's chin. The chin strap 13 may be formed in a wide band shape to improve the fit feeling and may be made of a material having a predetermined elasticity.

The cord drill 21 can easily pull down on the base 11 while fixing both ends of the chin strap 13 to the mother body 11 to facilitate the pulling of the chin strap 13 and the tightening of the strap 13 .

When the pulling force of the chin strap is applied, the cord drill 21 can be pulled out by pulling the chin strap wound on the reel by a spring spring located inside, by a desired length of the wearer.

When the pulling force of the jaw strap 13 is removed, the jaw strap is automatically rewound on the reel by the elasticity of the spring spring to maintain the tension when the jaw strap 13 is worn.

The structure in which the chin strap 13 maintains the tension when the chin strap 13 is worn prevents the mother 11 from being separated or separated from the wearer's head so that a secondary safety accident Ensure that hazards are avoided.

On the other hand, since the above-described structure in which the chord drill operates is a general cord drill structure, detailed description is omitted.

A guide roller 23 for guiding the pulling of the chin strap 13 and a brake lever 25 for making it difficult to wear the safety cap 10 when the safety cap 10 is worn without pulling out the chin strap 13 .

The guide roller 23 guides the chin strap 13 which is provided on both sides of the mother body 11 with a height difference from the cock drill 21 and is pulled out of the cock drill 21 or wound by the cord drill 21 .

The brake lever 25 serves to stop or rotate the rotation of the cord drill 21.

2 and 3, the brake lever 25 includes a rotating roller 27 provided between the guide roller 23 and the base 11 at a height difference from the guide roller 23, A chin strap for urging the rotary roller 27 in an upward direction and a rotary shaft 27 for upwardly moving the rotary roller 27 to engage with the guide roller 23; And a study 39.

The rotary roller 27 is installed in a slot 39 formed at the end of the third extended portion 37 of the bracket 31 described below. The rotating roller 27 is moved upward in the slot 39 to be engaged with the guide roller 23 so that the rotation of the cord drill 21 is stopped even when the pull cord is pulled, The spaced apart state from the guide roller 23 is maintained and rotation of the claw drill 21 is enabled.

The elastic member 29 serves to press the rotary roller 27 downward so that the rotary roller 27 is kept apart from the guide roller 23. [ The elastic member 29 is compressed only when the rotary roller 27 is pressed upward.

The slot 39 is elongated in the longitudinal direction at the end of the third extension 37 to allow the rotary roller 27 to move up and down.

The nose drill 21, the guide roller 23 and the rotary roller 27 are provided on both sides of the matrix 11 via a bracket 31 fixed to both sides of the matrix 11. The bracket 31 keeps the joint state of the cord drill 21 and the mother body 11 securely so that the coupling of the chin strap 13 and the mother body 11 via the cord drill 21 is released prevent. This prevents the mother body 11 from being peeled off in a state in which the chin strap 13 is worn.

The bracket 31 is fixed to the outside of the base 11 so as to protrude outward from both sides of the base 11 so that the wearer's head or face wearing the base 11 and the nose drill 21, Do not interfere.

Bolts or the like can be used for fixing the mother body 11 and the bracket 31 for firm fixing.

The bracket 31 has a first extension portion 33 on which the nose drill 21 is mounted, a second extension portion 35 below the first extension portion 33 on which the guide roller 23 is mounted, And a third extension portion 37 below the second extension portion 35 on which the second extension portion 27 is mounted.

A nose drill 21, a guide roller 23 and a rotating roller 27 are mounted on the ends of the first extension part 33, the second extension part 35 and the third extension part 37, Thereby facilitating the pulling-out of the chin strap 13 downward. Each of the ends of the first extension portion 33, the second extension portion 35 and the third extension portion 37 is disposed diagonally so as to extend in the downward direction of the chin strap 13, The rotation of the guide roller 23 and the rotation roller 27 do not interfere with each other.

The guide roller 23 and the rotary roller 27 cooperate with each other to restrain the pulling of the shoulder strap 13 so as not to rotate the cord drill 21 with respect to the force for pulling the shoulder strap 13 upwardly .

The operation of the present invention will be described below.

First, the principle of the operation of the chord drill when pulling the jaw strap downward and the second is that it is difficult to wear the helmet when the helmet is directly worn without ignoring the jaw strap of the helmet.

To wear the safety helmet 10, first pull the tie strap 13 downward. The chin strap 13 wound on the nose drill 21 on both sides of the mother body 11 is guided by the guide roller 23 and the rotary roller 27 by pulling the chin strap 13 downward, As shown in FIG.

Then, the wearer removes the pulling force of the jaw strap 13 after wearing the mother body 11 on the head, thereby releasing the pulled-up state of the shoulder strap 13 in the downward direction. Then, the jaw strap 13 is automatically wound around the cord drill 21 and worn on the wearer's face, thereby maintaining the tension.

At this time, both ends of the chin strap 13 are wound at the same ratio on both sides of the base 11 at the same time, so that the chin rest part 15 of the chin strap 13 is stably fixed to the jaw of the wearer, It is also excellent.

Thereby, the risk that the wearer's head is exposed to the outside without being separated or separated from the head of the wearer is fundamentally prevented.

5, when the safety helmet 10 is worn in a state in which the chin strap 13 is not pulled downward, the chin strap 13 is positioned inside the mother body 11, Thereby pushing it upward.

The chin strap 13 is guided by the guide roller 23 and the rotary roller 27 of the brake lever 25 so that the chin strap 13, which is pushed up by the wearer's head, So that the rotating roller 27 of the lever 25 is pressed upward.

The upward pressing applied to the rotating roller 27 causes the rotating roller 27 to move upward along the elongate 39 while compressing the elastic member 29.

6, when the rotary roller 27 moves upward, the rotary roller 27 is engaged with the guide roller 23, and the chin strap 13 is sandwiched between the two, The chin strap 13 is prevented from being pulled out.

That is, when the jaw strap 13 is pulled upward, the rotating roller 27 and the guide roller 23 of the brake lever 25 cooperate to restrict the pulling of the chin strap 13 wound on the cord drill 21 .

The wearer can not wear the safety hat 10 when the safety hat 10 is worn by ignoring the wearing of the chin strap 13. [

This is because the helmet 10 can not be worn by anyone wearing the helmet 10 without wearing the jaw strap 13 of the helmet 10 or without tightening the shoulder strap 13, To increase the utility value of wearing.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

10: Helmet 11: Matrix
13: chin strap 15: chin rest part
21: Cord drill 23: Guide roller
25: brake lever 27: rotating roller
29: elastic member 31: bracket
33: first extension part 35: second extension part
37: third extension part 39:

Claims

A matrix in which the wearer's head is received;
A chin strap worn on the wearer's face to fix the state of the wearer's head to the mother body;
Wherein both ends of the chin strap are wound by rotation and pulled out by pulling the chin strap downward by a desired length by the wearer and releasing the pulled-up state of the chin strap, Characterized in that the jaw strap includes a cord drill that automatically winds the jaw strap.

The method according to claim 1,
A guide roller provided on both sides of the matrix with a height difference from the nail drill and guiding a chin strap drawn out from the nail drill or wound around the cord reel,
Further comprising a brake lever disposed between the guide roller and the mother body at both sides of the mother body at a height difference from the guide roller, for stopping or rotating the rotation of the nail drill.

The method of claim 2,
The brake lever
A rotation roller provided at an end portion and cooperating with the guide roller for guiding the pull-out of the chin strap downward;
An elastic member for pressing the rotating roller in a downward direction,
And wherein the chin strap includes a slot for allowing the rotating roller to move upward when the rotating roller is pressed upward to engage with the guide roller.

The method of claim 3,
Wherein the nail drill, the guide roller, and the rotary roller are provided on both sides of the mother body via brackets fixed to both sides of the mother body.

The method of claim 4,
The bracket
A first extension of the upper portion on which the nail drill is mounted,
A second extension portion below the first extension portion on which the guide roller is mounted,
And a third extension part below the second extension part on which the rotation roller is mounted.