KR101674630B1

KR101674630B1 - Fitting device for helmet

Info

Publication number: KR101674630B1
Application number: KR1020150064447A
Authority: KR
Inventors: 김경한
Original assignee: (주) 나눅스엔지니어링
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2016-11-09

Abstract

The present invention relates to a helmet fitting apparatus, and more particularly, A pair of bands each having one side fixed to both sides of the helmet, the other side inserted into the case, and the other side formed with a gear; A band guide installed inside the case to guide movement of the band; A saw blade gear is protruded on one end surface of the case and a blade engaged with the gear of the band is protruded and formed along the outer periphery of the other end so as to adjust the overall length by the rotation of the band A rotary gear to be rotated; A dial lever coupled to the toothed gear of the rotary gear and formed with a gear so that a rotational force is interlocked only in one direction and providing tightening force to the band by rotation; A spring provided between the front cover and the dial lever to press the dial lever toward the rotary gear to engage with the gear; And a tension spring installed on the rotary gear, and a tension spring for applying a rotary restoring force to the rotary gear when the dial lever is separated from the rotary gear and releasing the tooth engagement, thereby providing a releasing force to the band.

Description

[0001] FITTING DEVICE FOR HELMET [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet fitting apparatus, and more particularly, to a helmet fitting apparatus having a helmet fitting apparatus and a helmet fitting apparatus.

The helmet is a safety wear for protecting the bicycle user's head.

The most suitable bicycle helmet according to the present invention has a structure in which bands are formed on both sides and fastened at the jaws, and a band is fastened to the back of the back of the head so that the helmet does not rotate forward and backward. .

In particular, the present invention relates to a helmet fitting apparatus for fixing the occiput side.

FIG. 1 shows an example of a conventional bicycle helmet fitting apparatus.

1 (b), when the dial lever 20 is turned counterclockwise in the counterclockwise direction as shown in Figs. 1 (a), (b) and (c) (20), the band (30) is tightened.

However, in the related art, a structure in which the dial lever can be rotated in the clockwise or counterclockwise direction to tighten or loosen the band can be performed. However, since the user often misjudges the direction of the dial lever, While the band can be fine-tuned to improve the fitting feeling, it is necessary to rotate the dial lever several times even when the band is loosened, so that the helmet can not be removed quickly.

KR 20-1997-0006438 Y1 KR 10-0566578 B1

SUMMARY OF THE INVENTION It is an object of the present invention to provide a helmet fitting apparatus that can easily fasten and unfasten a band for fitting a helmet to improve user convenience.

According to an aspect of the present invention, there is provided a helmet fitting apparatus comprising: a case having a rear cover which is in close contact with a head portion and a front cover which is connected to the rear cover by a pin, A pair of bands each having one side fixed to both sides of the helmet, the other side inserted into the case, and the other side formed with a gear; A band guide installed inside the case to guide movement of the band; A saw blade gear is protruded on one end surface of the case and a blade engaged with the gear of the band is protruded and formed along the outer periphery of the other end so as to adjust the overall length by the rotation of the band A rotary gear to be rotated; A dial lever coupled to the toothed gear of the rotary gear and formed with a gear so that a rotational force is interlocked only in one direction and providing tightening force to the band by rotation; And a dial lever which is provided between the front cover and the dial lever to urge the dial lever toward the rotary gear to be engaged with the rotary gear and to be engaged with the dial lever by external pressure to release the engagement of the gear spring; And a tension spring installed on the rotary gear, and a tension spring for applying a rotary restoring force to the rotary gear when the dial lever is separated from the rotary gear and releasing the tooth engagement, thereby providing a releasing force to the band.

The rear cover includes a central portion formed with a groove into which the band guide is inserted, and a rail-shaped blade having a stepped portion formed on both sides of the center portion and closely contacted with the back portion to divide a pair of the bands into an upper portion and a lower portion, And the front cover is partially cut up and down so that the dial lever is formed to be exposed.

The band guide includes an annular body having a through hole at a central portion thereof and a passage through which the band passes, the passage being formed through the upper side and the lower side of the annular body.

The rotating gear is constituted by a tubular member which is inserted into the band guide and on which a blade is formed, and a flat plate member which is coupled to the outer circumferential surface of the tubular member and in which a toothed gear is formed.

According to the present invention having the above-described configuration, the following effects can be expected.

The structure for allowing the band to be released by operating the dial lever with one-touch operation is provided, so that the user can easily remove the helmet, thereby improving convenience.

1 is an exemplary view of a fitting device of a conventional bicycle helmet.
2 is a perspective view of a helmet fitting apparatus according to an embodiment of the present invention.
3 is an exploded view of Fig.
4 is an enlarged view of main components of the exploded view of Fig.
Fig. 5 is a view showing the left side of Fig. 2. Fig.
Fig. 6 is an illustration of a release operation. Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a perspective view of a helmet fitting apparatus according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 4 is an enlarged view of main parts of an exploded view of FIG.

Referring to FIGS. 3 and 4, which illustrate the present invention in detail, the helmet fitting apparatus of the present invention is installed in a helmet, The band 200, the band guide 300, the rotary gear 400, the dial lever 500, the spring 600, and the tension spring 700, To provide a technique that can be unrolled.

The configuration of the present invention will be described below in order.

The case 100 is located at the back of the head and is formed with an internal space to accommodate the band guide 300, the rotary gear 400, the dial lever 500, the spring 600 and the tension spring 700, So that the end side of the main body 200 is drawn in.

The case includes a rear cover 120 which is in close contact with the occiput portion and a front cover 140 which is connected to the rear cover 120 by a pin.

The front cover 140 is partly cut up and down so that the dial lever can be exposed.

The rear cover 120 includes a central portion formed with a groove 122 into which the band guide is inserted and a pair of bands extending from both sides of the central portion to be in close contact with the back portion, And a rail-shaped wing portion 124 formed with a wedge 123.

The bands 200 are provided as a pair, and are connected to the helmet and the case 100 to adjust or adjust the length so that the rear portion can be tightened or loosened.

Here, one pair of the bands 200 is fixed to both sides of the helmet, the other one is inserted into the case, and the other pair of side gears 220 is formed on the other side.

The band guide 300 guides movement of the band 200 drawn into the case.

The band guide 300 is installed inside the case 100. The band guide 300 includes an annular body 320 having a through hole 322 formed at the center thereof to receive a propeller of the rotary gear, And a passageway 340 passing through the band from the upper side to the lower side is formed.

The rotary gear 400 is rotatably installed in the case 100 and is configured to move the band 200 to the left and right by rotation to be tightened or loosened.

The rotary gear 400 includes a tubular member 420 on which a blade 422 is annularly inserted into the band guide 300 and a toothed gear 442 coupled to the outer circumferential surface of the tubular member 420, And a flat plate member 440 having a flat plate member 440 formed thereon.

Where the blade 422 is formed along the outer periphery at the end of the tubular member to engage with a gear gear 220 formed in the band 200.

Then, the toothed gear 442 is protruded and engaged with the dial lever 500.

The dial lever 500 is engaged with the toothed gear 442 of the rotary gear 400 and the gear 520 is formed so that the rotational force is interlocked only in one direction, To provide tightening force.

The spring 600 is provided between the front cover 140 and the dial lever 500 to provide a pressing force to press the dial lever 500 toward the rotary gear 400 to be engaged with the gear.

Of course, when the spring 600 is pressed by the external pressing force, the dial lever 500 is separated from the rotary gear 400 to release the gear engagement.

Here, the external pressing force can be easily pressed since the dial lever 500 is partly exposed to the outside of the case 100.

The tension spring 700 provides a rotational restoring force to the rotary gear 400 so that the band 200 can be loosened.

The tension spring 700 is installed in the rotary gear 400. More specifically, one end of the tension spring 700 is fixed to the tubular member of the rotary gear, and the other end of the tension spring 700 is fixed to the band guide. Since the band guide is fixed to the inside of the case, the band gear is pressed when the rotation gear is rotated.

At this time, when the dial lever 500 is separated from the rotary gear 400 by an external pressing force, the gear engagement is released, and rotation restoring force is applied to the rotary gear to provide a releasing force to the band.

The configuration of the helmet fitting apparatus according to the present invention has been described above, and a simple operation procedure will be described below with reference to the above configuration.

Fig. 4 is a view showing the left side of Fig. 2. Fig.

First, when the helmet is worn, the user turns the dial lever 500 to rotate the rotary gear, so that the band 200 is pulled into the case by the gear gear 220 engaged with the rotary gear, .

5 is a diagram illustrating an example of a release operation.

When the helmet is detached, when the dial lever 500 is pushed toward the front cover 140, the binding force of the rotary gear is released, so that the band 200 is reversely rotated by the tension spring 700, .

Therefore, there is an advantage that the helmet can be easily removed by pushing the dial lever at one-touch.

It will be understood by those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims. Of course, it is possible to modify it.

100: Case 120: Rear cover
140: front cover 200: band
220: Rake Gear 300: Band guide
320: annular body 340: passage
400: rotating gear 420: tubular member
422: blade 440: flat plate member
442: Toothed gear 500: Dial lever
600: spring 700: tension spring

Claims

A case having a rear cover that is in close contact with the back of the head and a front cover that is pin-coupled to the rear cover, the inner space being formed;
A pair of bands each having one side fixed to both sides of the helmet, the other side inserted into the case, and the other side formed with a gear;
A band guide installed inside the case to guide movement of the band;
A saw blade gear is protruded on one end surface of the case and a blade engaged with the gear of the band is protruded and formed along the outer periphery of the other end so as to adjust the overall length by the rotation of the band A rotary gear to be rotated;
A dial lever coupled to the toothed gear of the rotary gear and formed with a gear so that a rotational force is interlocked only in one direction and providing tightening force to the band by rotation;
And a dial lever which is provided between the front cover and the dial lever to urge the dial lever toward the rotary gear to be engaged with the rotary gear and to be engaged with the dial lever by external pressure to release the engagement of the gear spring;
And a tension spring installed on the rotary gear to rotate the rotary gear when the dial lever is separated from the rotary gear to disengage the gear to provide a releasing force to the band. Device.

The method according to claim 1,
The rear cover includes a central portion formed with a groove into which the band guide is inserted, and a rail-shaped blade having a stepped portion formed on both sides of the center portion and closely contacted with the back portion to divide a pair of the bands into an upper portion and a lower portion, &Lt; / RTI >
Wherein the front cover is partially cut upward and downward to expose the dial lever.

The method according to claim 1,
The band guide
An annular body having a through hole formed at a central portion thereof, and a passage formed through the upper and lower portions of the annular body to pass the band.

The method according to claim 1,
The above-
A tubular member inserted into the band guide and formed with a blade, and a flat plate member coupled to an outer circumferential surface of the tubular member and having a toothed gear formed therein.