KR20220063003A - Mask capable of adjusting length of string - Google Patents

Abstract

According to an embodiment of the present invention, a mask capable of adjusting the length of straps includes: a mask body worn on a face; mask straps provided on both sides of the mask body so that the mask body can be hung on ears when wearing the mask; strap length adjusters disposed on both sides of the mask body to connect one sides of the mask straps and adjusting the length of the mask straps by manipulating one sides of the mask straps; and a strap fixing means provided to be operable on the strap length adjusters and fixing one side of the mask straps when the length adjustment of the mask straps is completed.

Description

Mask with adjustable strap length {MASK CAPABLE OF ADJUSTING LENGTH OF STRING}

The present invention relates to a mask in which the length of the strap is adjustable, and more particularly, to a mask in which the length of the strap can be easily adjusted according to the size of the user's face, taste, or wearing comfort.

In general, a mask is a generic term for things that cover a part or the whole of the face, and is used to filter the air sucked into the respiratory tract for the purpose of health and health such as prevention and dust prevention.

Recently, epidemics of infectious diseases such as Corona 19 and bird flu are becoming more frequent around the world, and air pollution caused by yellow dust and fine dust is also increasing.

Therefore, the use of personal masks has been greatly expanded in recent years, and accordingly, technology development for further improving the performance and convenience of use of the mask is being actively conducted.

In particular, various technologies for adjusting the length of the mask string are being developed in consideration of the face size, taste, and fit of the user who wears the mask.

For example, in Korean Patent Registration No. 10-2097152 (Title of the invention: dust-proof mask with easy adjustment of string length, registration date: March 30, 2020), a mask on the face without the hassle of taking it off and adjusting the length of the string and then putting it back on again A technology is disclosed in which the user can extremely simply adjust the length of the strap by wearing it only once.

In addition, in Korean Patent Registration No. 10-2159200 (title of invention: mask with adjustable length earring string, registration date: 2020.09.17), the length of the earring string is adjusted using a length adjusting member for selectively fastening the earring string. A technique that can be easily adjusted is disclosed.

However, the length adjustment structure of the mask string applied to the existing mask has a limitation of adjusting the mask string only to a plurality of preset lengths, and when using the mask, the length of the mask string fluctuates arbitrarily, so the length of the mask string must be adjusted frequently. there is a problem with

Korean Patent No. 10-2097152 (registered on March 30, 2020) Korean Patent Registration No. 10-2159200 (Registered on September 17, 2020)

An embodiment of the present invention provides a mask capable of adjusting the length of the string that can stably maintain the length of the mask string after conveniently adjusting the length of the mask string.

In addition, in an embodiment of the present invention, when the length adjustment of the mask string is completed, the length adjustment of the mask string can be prevented by fixing the mask string, and if the length adjustment of the mask string is required, the fixed state of the mask string is temporarily released This provides a mask with adjustable length of the mask string that can be adjusted.

According to an embodiment of the present invention, the mask body to be worn on the face, the mask string provided on both sides of the mask body so that it can be hung on the ear when the mask body is worn, and the mask body to connect one side of the mask string A string length adjuster disposed on both sides of each and controlling one side of the mask string to adjust the length of the mask string, and the string length adjuster operably provided in the string length adjuster and when the length adjustment of the mask string is completed, the mask string It provides a mask capable of adjusting the length of the string comprising a string fixing means for fixing one side of the.

Preferably, the string length adjuster is disposed on both sides of the mask body and is provided with a string through hole for inserting one side of the mask string through the adjuster case, and the string through hole to the outside of the adjuster case. It may include a string adjustment hole provided in the shape of an opening in communication with the string through hole in the middle portion of the adjuster case to draw out one side of the inserted mask string.

The length of the mask string may be decreased by increasing the length of the mask string drawn out through the string adjustment hole, and may be increased as the length of the mask string drawn out is decreased.

Preferably, the adjuster case may be provided in a tubular shape elongated in the vertical direction, and the string through hole may be formed to be elongated in the vertical direction inside the adjuster case.

Here, the upper end and the lower end of the regulator case may be provided with a string entrance and exit communicating with the string through hole, respectively. The string entrance may be provided with a curved round portion to reduce frictional resistance with the mask string entering and exiting the string entrance when the length of the mask string is adjusted.

And, on one side of the inner side of the string through hole, a curved guide surface may be provided from the string entrance toward the string adjustment hole to smoothly guide the movement of the mask string when the length of the mask string is adjusted.

Preferably, the string length adjuster may further include a case mounting unit provided in the adjuster case to detachably mount the adjuster case to the mask body.

Preferably, the string fixing means operates in the first direction to press one side of the mask string to the string adjustment hole portion when the length adjustment of the mask string is completed by the string length adjuster to adjust the mask string to the string. It can be fixed to the hole, and if it is necessary to adjust the length of the mask string by the string length adjuster, it can be operated in the second direction to release the compression of the mask string to release the fixed state for the mask string.

Preferably, the string fixing means includes a fixed body mounted and fixed to the string adjustment hole portion, a compression block disposed on the upper and lower sides of the fixing body and sliding along the string adjustment hole portion, the pressing block and the fixing body. An elastic body provided between and providing an elastic force to the compression block in a first direction for pressing the mask string on the upper end and the lower end of the string adjustment hole, and operably protruding from the compression block and adjusting the length of the mask string It may include a block manipulation unit used to move the compression block in a second direction spaced apart from the upper end and the lower end of the string adjustment hole portion.

Here, the string adjustment hole portion may be provided in a shape that is elongated in the vertical direction. The first direction may be set such that the compression block moves away from the fixing body, and the second direction may be set such that the compression block approaches the fixing body.

In addition, sliding projections may be provided on both side surfaces of the compression block, and sliding rails for movably inserting the sliding projections may be provided on both side walls of the string adjustment hole.

Unlike the above, the string fixing means includes a fixed body mounted and fixed to the string adjustment hole portion, a compression block disposed on the upper and lower sides of the fixing body and sliding along the string adjustment hole portion, and a female screw formed in the compression block. A screw member having male threaded portions screw-coupled to the portion formed at both ends, the middle portion is rotatably disposed on the fixed body, and the screw member protruding in the circumferential direction to the middle portion of the screw member and adjusting the length of the mask string when adjusting the length of the mask string It may include a screw manipulation unit used to move the compression block in a second direction spaced apart from the upper end and the lower end of the hole.

Here, the male screw parts may be provided in different directions at both ends of the screw member, and the female screw parts may be provided in different directions to the compression blocks coupled to both ends of the screw member. The fixing body may be provided with a manipulation groove for exposing the screw manipulation unit to the outside to rotate the screw member by manipulating the screw manipulation unit.

In addition, the string adjustment hole portion may be provided in a shape that is elongated in the vertical direction, and the screw member may be provided long in the vertical direction inside the string adjustment hole portion. The first direction may be set such that the compression block moves away from the fixing body along the screw member, and the second direction may be set such that the compression block approaches the fixing body along the screw member.

In addition, sliding projections may be provided on both side surfaces of the compression block, and sliding rails for movably inserting the sliding projections may be provided on both side walls of the string adjustment hole.

The mask with adjustable length of the string according to the embodiment of the present invention is the length of the mask string adjusted by the string length adjuster using the string fixing means after conveniently adjusting the mask string to a preset length using the string length adjuster. Since it is a structure that fixes the mask, the length of the mask string can be easily adjusted, and by fixing the length of the mask string, the problem of arbitrarily changing the length of the mask string when using the mask can be prevented in advance.

In addition, since the mask having the adjustable length of the string according to an embodiment of the present invention has a structure in which a curved round part is formed in the string entrance formed in the adjuster case of the string length adjuster, the mask string smoothly enters the string entrance by the round part. Since it has a structure in the shape of a curved guide surface formed in the string through hole of the regulator case, the mask string can slide smoothly along the string through hole by the guide surface. Therefore, in this embodiment, since one side of the mask string is inserted into the string through hole of the string length adjuster, the length of the mask string is adjusted by adjusting the pull-out length drawn out through the string adjustment hole portion, so the mask string is One side of the slit moves smoothly along the round part and the guide surface, so that the length adjustment operation of the mask string can be performed very smoothly, and accordingly, the cutting phenomenon of the mask string can also be performed.

In addition, since the mask having the adjustable length of the string according to the embodiment of the present invention has a structure in which a case mounting unit is provided in the adjuster case to detachably mount the string length adjuster to both ends of the mask body, the length of the string by replacing the mask body The adjuster and the mask string can be used repeatedly, and accordingly, the cost burden can be reduced by stably reusing the string length adjuster when the mask is replaced.

In addition, in the mask with adjustable length of the string according to the embodiment of the present invention, when the length of the mask string is adjusted, the length of the mask string is fixed using the string fixing means, but if the length of the mask string is required to be adjusted, the string is fixed Since the length of the mask string can be adjusted by solving the fixing state of the means, it is possible to prevent the problem of abnormally changing the length of the mask string by maintaining the length of the mask string stably by the string fixing means, The length adjustment operation of the mask strap can be selectively performed only when the length adjustment is necessary.

1 is a front view showing a mask capable of adjusting the length of a string according to an embodiment of the present invention.
FIG. 2 is a view showing a main part of the mask shown in FIG. 1 .
3 is a view showing the string length adjuster and the string fixing means shown in FIG. 1 .
4 and 5 are operational state diagrams showing a cross-section taken along line AA shown in FIG. 3 .
6 is a view showing the main part of the mask in which the length of the string can be adjusted according to another embodiment of the present invention.
7 and 8 are operational state diagrams illustrating a cross-section taken along line BB shown in FIG. 6 .

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the examples. Like reference numerals in each figure indicate like elements.

1 is a front view showing a mask 10 with adjustable length of a string according to an embodiment of the present invention, and FIG. 2 is a view showing the main part of the mask 10 shown in FIG. 3 is a view showing the string length adjuster 300 and the string fixing means 400 shown in FIG. 1 , and FIGS. 4 and 5 are operational state diagrams showing a cross section taken along the line A-A shown in FIG. 3 .

1 and 2, the mask 10 with adjustable length of the string according to an embodiment of the present invention is a mask body 100, a mask string 200, a string length adjuster 300 and a string fixing means. (400).

That is, the mask 10 of the present embodiment may be provided in various types according to the purpose of use. Hereinafter, it will be described that the mask 10 of this embodiment is a disposable mask personally used for quarantine or dust prevention.

1 and 2, the mask body 100 of the present embodiment may be worn on the face to cover the nose and mouth. For example, the mask body 100 includes a main filter unit 110 including a filter for purifying air sucked into the user's respiratory tract, and an upper side provided to cover the user's nose on the main filter unit 110 . The wing part 120, the lower wing part 130 provided to cover the user's chin on the lower part of the main filter part 110, and the upper wing part 120 are disposed on the upper wing part 120 to closely bend according to the shape of the user's nose. It may include a nose support wire 140 .

1 and 2 , the mask string 200 of this embodiment is a member for hanging over the ear when the mask body 100 is worn, and may be provided in a ring shape on both sides of the mask body 100, respectively. That is, one side of the mask string 200 may be connected to the string length adjuster 300 , and the other side of the mask string 200 may be worn on the user's ear. In general, the mask string 200 may be provided as a string having an elastic force.

1 to 5 , the string length adjuster 300 of this embodiment, as a configuration for adjusting the length of the mask string 200 , may be respectively disposed on both sides of the mask body 100 . One side of the mask string 200 may be connected to the string length adjuster 300 . Accordingly, the string length adjuster 300 may be provided in a structure to adjust the overall length L1 of the mask string 200 by manipulating one side of the mask string 200 .

For example, the string length adjuster 300 may include an adjuster case 310 , a string adjustment hole 320 , and a case mounting unit (not shown).

Here, the adjuster case 310 may be disposed on both sides of the mask body 100 , respectively. A string through hole 312 for inserting one side of the mask string 200 through the inside of the adjuster case 310 may be provided. For example, the regulator case 310 may be provided in the shape of a hollow tube elongated in the vertical direction. The string through hole 312 as described above may be formed to be elongated in the vertical direction inside the regulator case 310 .

At the upper end and the lower end of the regulator case 310, string entrances 314 and 316 communicating with the string through hole 312 may be provided, respectively. That is, an upper string entrance 314 may be provided at the upper end of the adjuster case 310 , and a lower string entrance 316 may be provided at the lower end of the adjuster case 310 .

The upper string entrance 314 and the lower string entrance 316 may be provided with curved round portions 314a and 316a formed with a predetermined curvature. That is, the round portions 314a and 316a may reduce frictional resistance with the mask string 200 that enters and exits the string entrances 314 and 316 when the length of the mask string 200 is adjusted.

In addition, the string adjustment hole 320 may be provided in an opening shape communicating with the string through hole 312 in the middle portion of the adjuster case 310 . The strap adjustment hole 320 as described above may extend long in the vertical direction to correspond to the adjuster case 310 . In this case, one side of the mask string 200 may be withdrawn to the outside of the adjuster case 310 through the string adjustment hole 320 while being inserted into the string through hole 312 .

The overall length L1 of the mask string 200 may be reduced by increasing the withdrawal length L2 of the mask string 200 drawn out through the string adjustment hole 320, and the string adjustment hole part ( It may be increased as the length L2 of the mask string 200 drawn outward through 320 is decreased. That is, the draw-out length L2 of the mask string 200 can be increased by pulling one side of the mask string 200 outward through the string adjustment hole 320, and is not connected to the adjuster case 310. It can be reduced by pulling the other side of the mask string 200 that is not there.

On the other hand, a guide surface 318 of a curved shape may be provided on one side of the inner side of the string through hole 312 toward the string adjustment hole 320 from the string entrances 314 and 316 . The guide surface 318 as described above may be convexly formed in a parabolic shape having a predetermined curvature. Therefore, in this embodiment, the mask string 200 can be smoothly moved along the guide surface 318 in the process of adjusting the withdrawal length L2 of the mask string 200, and the length of the mask string 200 is It can be adjusted easily and smoothly.

In addition, the case mounting unit is a configuration for detachably mounting the adjuster case 310 to both sides of the mask body 100 , and may be provided in various structures in the adjuster case 310 . As an example, the case mounting unit includes a clamp structure clamped to the mask body 100 , a fastening structure fastened to the mask body 100 , a detachable structure that is detachably attached to the mask body 100 , or a hook-coupled to the mask body 100 . It may be provided in any one of the hook structures. Therefore, in this embodiment, it is possible to separate the string length adjuster 300 and the mask string 200 from the previously used mask body 100 and then mount it on the new mask body 100 and use it again.

1 to 5 , the string fixing means 400 of this embodiment is a device for fixing one side of the mask string 200 to the string adjustment hole 320 when the length adjustment of the mask string 200 is completed. . The string fixing means 400 as described above may be provided in the string adjustment hole 320 of the string length adjuster 300 in a structure operable by the user. At this time, one side of the mask string 200 may be disposed between the string adjustment hole 320 and the string fixing means 400 .

The string fixing means 400 of this embodiment, when the length adjustment of the mask string 200 by the string length adjuster 300 is completed, the first direction of pressing one side of the mask string 200 to the string adjustment hole 320 By operating as (D1), the mask string 200 can be fixed to the string adjustment hole 320, and if the length of the mask string 200 is required to be adjusted by the string length adjuster 300, the mask string 200 is compressed. It is possible to release the fixed state for the mask string 200 by operating in the second direction (D2) to release.

For example, the string fixing means 400 may include a fixing body 410 , compression blocks 420 and 430 , elastic bodies 440 and 450 , and block manipulation units 460 and 470 .

Here, the fixing body 410 may be mounted and fixed to the middle portion of the string adjustment hole 320 . The fixing body 410 as described above is detachably mounted in the middle of the string adjustment hole 320 , and may be provided to support the compression blocks 420 and 430 and the elastic bodies 440 and 450 .

In this embodiment, the fixing body 410 may be formed to be larger than the width of the string adjustment hole 320 . To this end, a position setting groove 322 may be formed in a shape relatively larger than that of the string adjustment hole 320 in the middle portion of the string adjustment hole 320 , and the fixing body 410 is provided in the position setting groove 322 . The insertion position of the fixed body 410 can be stably supported.

And, the compression blocks 420 and 430 are provided in the string adjustment hole 320 in a structure that slides along the longitudinal direction of the string adjustment hole 320, to be disposed on the upper side and the lower side of the fixing body 410, respectively. can At this time, the first direction D1 may be set to move the compression blocks 420 and 430 away from the fixing body 410 , and the second direction D2 is the pressing blocks 420 and 430 for the fixing body 410 . It can be set to be close to .

Sliding protrusions 422 and 432 may be provided on both side surfaces of the compression blocks 420 and 430, respectively, and the sliding protrusions 422 and 432 are movably inserted into both side walls of the string adjustment hole 320. Sliding rails for insertion (424, 434) may be provided, respectively.

2 to 5, the compression block 420, 430 is an upper compression block 420 disposed movably along the upper portion of the string adjustment hole 320 on the upper side of the fixed body 410, and a lower compression block 430 movably disposed along the lower portion of the string adjustment hole 320 on the lower side of the fixing body 410 .

Upper sliding protrusions 422 may be formed on both sides of the upper compression block 420, and upper sliding protrusions 422 are movably inserted into upper side surfaces of the string adjustment hole 320. Upper sliding rail 424. can be formed. Lower sliding protrusions 432 may be formed on both sides of the lower compression block 430, and lower sliding protrusions 432 are movably inserted into the lower side surfaces of the string adjustment hole 320. Lower sliding rails 434. can be formed.

In addition, the elastic bodies 440 and 450 are members that provide elastic force to the compression blocks 420 and 430 in the first direction D1 , and may be provided between the compression blocks 420 and 430 and the fixed body 410 . . The elastic bodies 440 and 450 as described above may be provided as compression springs to provide an elastic force in the first direction D1 for compressing the mask string 200 to the upper end and lower end of the string adjustment hole 320 .

2 to 5, the elastic body 440, 450, the upper elastic body 440 disposed between the upper portion of the fixed body 410 and the upper compression block 420, and the fixed body 410 of It may include a lower elastic body 450 disposed between the lower and lower compression block 430 .

In addition, the block manipulation units 460 and 470 are used to move the compression blocks 420 and 430 in the second direction D2 spaced apart from the upper end and the lower end of the string adjusting hole 320 when the length of the mask string 200 is adjusted. can The block manipulation units 460 and 470 as described above may protrude in an operable shape to the compression blocks 420 and 430 .

As shown in FIGS. 2 to 5 , the block manipulation units 460 and 470 are the upper block manipulation unit 460 protruding from the upper crimping block 420 , and the upper block manipulation unit 460 and the lower crimping unit to correspond to the arrangement. It may include a lower block manipulation unit 470 protruding from the block 430 .

Therefore, in this embodiment, when it is necessary to adjust the length of the mask string 200, the upper block operation unit 460 and the lower block operation unit 470 are operated to remove the upper compression block 420 and the lower compression block 430. It can be moved in two directions (D2), and thus the entire length (L1) of the mask string 200 by solving the fixing state of the mask string 200 by the upper compression block 420 and the lower compression block 430 can be adjusted.

The operation and effect of the mask 10 capable of adjusting the length of the string according to an embodiment of the present invention configured as described above are as follows.

First, if the length of the mask string 200 needs to be adjusted when the mask 10 is worn, the upper block manipulation unit 460 and the lower block manipulation unit 470 of the string fixing means 400 are operated in the second direction (D2). Thus, the upper compression block 420 and the lower compression block 430 are slidably moved in the second direction D2.

The length of the mask string 200 is adjusted in a state in which the upper compression block 420 and the lower compression block 430 are slidably moved in the second direction D2 as described above.

Specifically, when the upper compression block 420 and the lower compression block 430 are moved in the second direction closer to the fixed body 410 by the user, the compression blocks 420 and 430 are attached to the adjustment hole 320 ), it is possible to move the mask string 200 away from the upper end and the lower end.

Therefore, since the mask string 200 releases the fixed state between the compression blocks 420 and 430 and the string adjustment hole 320, as the mask string 200 is pulled out through the string adjustment hole 320 for a long time. By increasing the withdrawal length (L2) of the mask string 200, the overall length (L1) of the mask string 200 is reduced, and the mask string 200 is drawn out from the string through hole 312 of the adjuster case 310. Accordingly, the overall length L1 of the mask string 200 is increased by reducing the length L2 of the mask string 200 drawn out.

Through the method as described above, the overall length L1 of the mask string 200 suitable for wearing the mask 10 is appropriately adjusted.

Then, after adjusting the overall length (L1) of the mask string 200, the operating force provided to the upper block manipulation unit 460 and the lower block manipulation unit 470 of the string fixing means 400 is removed.

Therefore, the upper compression block 420 and the lower compression block 430 move in the first direction D1 by the elastic force of the upper elastic body 440 and the lower elastic body 450, and the upper and lower ends of the string adjustment hole 320 are pressed on

At this time, since the mask string 200 is compressed at the upper end and the lower end of the string adjustment hole 320 by the upper pressing block 420 and the lower pressing block 430, the overall length L1 of the mask string 200 is stable. and prevents the overall length L1 of the mask string 200 from abnormally fluctuating due to an external impact or external force when the mask 10 is used.

As described above, the mask 10 of this embodiment can easily change the fixation and release of the mask string 200 through the operation of the block manipulation units 460 and 470, and release the fixation of the mask string 200 In one state, the overall length L1 of the mask string 200 can be easily adjusted.

In particular, the mask 10 of this embodiment is the mask string 200 while replacing the mask body 100 that is actually used for dust protection and quarantine by mounting or separating the string length adjuster 300 on both sides of the mask body 100 . And the string length adjuster 300 and the string fixing means 400 can be reused repeatedly.

6 is a view showing the main part of the mask 10 capable of adjusting the length of the string according to another embodiment of the present invention, and FIGS. 7 and 8 are operation state diagrams showing a cross-section taken along the line B-B shown in FIG. .

In FIGS. 6 to 8 , the same reference numerals as those shown in FIGS. 1 to 5 indicate the same members, and detailed description thereof will be omitted. Hereinafter, different points from the mask 10 in which the length of the string shown in FIGS. 1 to 5 can be adjusted will be mainly described.

6 to 8 , the mask 10 with adjustable length of the string according to another embodiment of the present invention is different from the mask 10 shown in FIGS. 1 to 6 , the string fixing means 500 ) is different in that the structures are formed differently.

Therefore, other components except for the string fixing means 500 of this embodiment are the same as the components shown in FIGS. 1 to 5, and thus a description thereof will be omitted. Hereinafter, the string fixing means 500 of this embodiment will be described in detail.

6 to 8, the string fixing means 500 of this embodiment may include a fixing body 510, compression blocks 520 and 530, a screw member 540, and a screw operation unit 550. there is.

Here, the fixing body 510 may be mounted and fixed to the middle portion of the string adjustment hole 320 . Since the fixing body 510 as described above is formed similarly to the fixing body 410 shown in FIGS. 3 to 5 , a detailed description thereof will be omitted.

And, the compression blocks 520 and 530 are provided in the string adjustment hole 320 in a structure that slides along the longitudinal direction of the string adjustment hole 320 , respectively, to be disposed on the upper side and the lower side of the fixing body 510 . can At this time, the first direction D1 may be set to move the compression blocks 520 and 530 away from the fixing body 510 , and the second direction D2 is the pressing blocks 520 and 530 from the fixing body 510 . It can be set to be close to . Since the compression blocks 520 and 530 as described above are formed similarly to the compression blocks 420 and 430 shown in FIGS. 3 to 5 , a detailed description thereof will be omitted.

In addition, the middle portion of the screw member 540 may be rotatably disposed on the fixed body 510 , and both ends of the screw member 540 extend vertically from the fixed body 510 to elongate the upper compression block 520 . and the lower compression block 530 . The upper compression block 520 and the lower compression block 530 may move in the first direction D1 or in the second direction D2 according to the rotation direction of the screw member 540 .

Male screw portions 542 and 544 are respectively formed at both ends of the screw member 540 , and the screw directions of the male screw portions 542 and 544 may be provided in different directions. The upper compression block 420 and the lower compression block 430 may be respectively formed with female screw portions for screwing with the male screw portions 542 and 544 of the screw member 540 . As described above, the female screw portions of the upper compression block 420 and the lower compression block 430 may be provided in different screw directions to correspond to the male screw portions 542 and 544 formed at both ends of the screw member 540 .

For example, the fixing body 510 may have a screw rotation hole through which the middle portion of the screw member 540 is rotatably disposed, and both ends of the screw member 540 are provided in the compression blocks 520 and 530 . The male screw portions 542 and 544 formed in the female screw portion to which the screw is coupled may be formed to pass through. The screw member 540 may be disposed to be elongated in the vertical direction along the length direction of the string adjustment hole part 320 , and the screw rotation hole and the female thread part may be formed to penetrate in the vertical direction corresponding to the screw member 540 . .

In addition, the screw manipulation unit 550 may be provided to protrude along the circumferential direction in the middle of the screw member 540 to manipulate the rotation of the screw member 540 by the user. An operation groove 512 for operating the screw operation portion 550 may be provided in the fixed body 510 as described above. The manipulation groove 512 may be provided in a shape exposing the screw manipulation unit 550 to the outside in the fixed body 510 to rotate the screw member 540 by a user's manipulation.

For example, the screw operation unit 550, when the length adjustment of the mask string 200 is completed, rotate in the forward direction to compress the compression blocks 520 and 530 to the upper end and the lower end of the string adjustment hole 320, respectively. It can be moved in the direction D1, and if it is necessary to adjust the length of the mask string 200, the compression blocks 520 and 530 are rotated in the reverse direction to separate the compression blocks 520 and 530 from the upper end and the lower end of the string adjustment hole 320, respectively. It can be moved in the direction D2.

As described above, in the embodiments of the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is limited to the above embodiments Various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all of the claims and equivalents or equivalent modifications will fall within the scope of the spirit of the present invention.

10: mask
100: mask body
200: mask string
300: string length adjuster
310: adjuster case
320: string adjustment hole part
400, 500: string fastening means
410, 510: fixed body
420, 430, 520, 530: crimp block
440, 450: elastic body
460, 470: block control panel
540: screw member
550: screw control unit

Claims (11)

a mask body worn on the face;
a mask string provided on both sides of the mask body so that it can be hung on the ear when the mask body is worn;
a string length adjuster disposed on both sides of the mask body to connect one side of the mask string, and adjusting the length of the mask string by manipulating one side of the mask string; and
a string fixing means provided operably in the string length adjuster, and fixing one side of the mask string when the length adjustment of the mask string is completed;
A mask with adjustable straps that includes
According to claim 1,
The string length adjuster is disposed on both sides of the mask body, respectively, the adjuster case is provided with a string through hole for inserting one side of the mask string to be penetrated; and a string adjustment hole provided in an opening shape communicating with the string through hole in the middle of the adjuster case so as to draw out one side of the mask string inserted into the string through hole to the outside of the adjuster case,
The length of the mask string is decreased as the withdrawal length of the mask string drawn out through the string adjustment hole part is increased, and is increased as the withdrawal length of the mask string is decreased. Mask with adjustable length.
3. The method of claim 2,
The regulator case is provided in a tubular shape elongated in the vertical direction, and the string through-hole is formed long in the vertical direction inside the regulator case,
The upper end and the lower end of the regulator case are provided with string entrances communicating with the string through hole, respectively,
The length of the string adjustable mask, characterized in that the string entrance is provided with a curved round portion to reduce frictional resistance with the mask string entering and exiting the string entrance when the length of the mask string is adjusted.
4. The method of claim 3,
On one side of the inner side of the string through hole, a curved guide surface is provided from the string entrance to the string adjustment hole to smoothly guide the movement of the mask string when the length of the mask string is adjusted. possible masks.
3. The method of claim 2,
The string length adjuster,
a case mounting unit provided in the adjuster case to detachably mount the adjuster case to the mask body;
A mask capable of adjusting the length of the string, characterized in that it further comprises.
6. The method according to any one of claims 2 to 5,
The string fixing means,
When the length adjustment of the mask string by the string length adjuster is completed, the mask string is fixed to the string adjustment hole portion by operating in the first direction to press one side of the mask string to the string adjustment hole portion,
When it is necessary to adjust the length of the mask string by the string length adjuster, it operates in the second direction to release the compression of the mask string to release the fixing state to the mask string. .
7. The method of claim 6,
The string fixing means,
a fixed body mounted and fixed to the string adjustment hole;
a compression block disposed on the upper and lower sides of the fixed body, respectively, and slidingly moved along the string adjustment hole;
an elastic body provided between the compression block and the fixed body, the elastic body providing an elastic force to the compression block in a first direction for pressing the mask string on the upper end and the lower end of the string adjustment hole; and
a block manipulation unit operably protruding from the compression block and used to move the compression block in a second direction spaced apart from the upper end and the lower end of the string adjustment hole when the length of the mask string is adjusted;
A mask capable of adjusting the length of the string, characterized in that it comprises a.
8. The method of claim 7,
The string adjustment hole portion is provided in a shape that is elongated in the vertical direction,
The first direction is set so that the compression block is away from the fixed body, the second direction is set so that the compression block is closer to the fixed body,
A mask capable of adjusting the length of a string, characterized in that sliding protrusions are respectively provided on both sides of the compression block, and sliding rails for movably inserting the sliding protrusions are provided on both sides of the wall of the string adjustment hole.
7. The method of claim 6,
The string fixing means,
a fixed body mounted and fixed to the string adjustment hole;
a compression block disposed on the upper and lower sides of the fixed body, respectively, and slidingly moved along the string adjustment hole;
a screw member having a male screw portion screw-coupled to a female screw portion formed in the compression block, respectively, formed at both ends, and a middle portion rotatably disposed on the fixed body; and
a screw operation unit protruding from the middle portion of the screw member in the circumferential direction and used to move the compression block in a second direction spaced apart from the upper end and the lower end of the string adjustment hole when the length of the mask string is adjusted;
A mask capable of adjusting the length of the string, characterized in that it comprises a.
10. The method of claim 9,
The male screw parts are respectively provided in different directions at both ends of the screw member, and the female screw parts are respectively provided in different directions on the compression blocks coupled to both ends of the screw member,
A mask capable of adjusting the length of a string, characterized in that the fixed body is provided with a manipulation groove for exposing the screw manipulation unit to the outside so as to rotate the screw member by manipulating the screw manipulation unit.
10. The method of claim 9,
The string adjustment hole portion is provided in a shape elongated in the vertical direction, and the screw member is provided long in the vertical direction inside the string adjustment hole portion,
The first direction is set such that the compression block moves away from the fixing body along the screw member, and the second direction is set such that the compression block approaches the fixing body along the screw member,
A mask capable of adjusting the length of a string, characterized in that sliding protrusions are respectively provided on both sides of the compression block, and sliding rails for movably inserting the sliding protrusions are provided on both sides of the wall of the string adjustment hole.

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