KR20220000712U - Air respirator mask using string clamping device of simple tightening type - Google Patents

Abstract

The present invention relates to a facepiece of an air respirator with a simple tightening method, and is intended to enable simple tightening or loosening of the facepiece drawstring at once even with a hand wearing thick gloves such as fire protection gloves.
To this end, the present invention provides a plurality of first guides that are formed on the edge of the mask body and have first travel holes through which a drawstring can pass at the end in an air respirator face body including a rear hood that is connected or separated from the mask body. A plurality of second guide members formed at the edge of the rear hood and formed at the end of the second passage hole through which the drawstring can come and go, each formed at a position corresponding to each first guide member, and one end of the string fastening member A drawstring fixed to and the other end passes through the first passing hole of the first guide member and the second passing hole of the second guide member in a zigzag manner to return to the string fastening member and fixed, and is installed on one side of the mask body. A string fastening member that fixes both ends of the drawstring that has passed through the first guide member and the second guide member in a zigzag manner by a winding member and controls the rotational operation of the winding member with a dial cover member to intermittently wind or unwind the drawstring from the winding member. Including, it is possible to quickly and easily put on or take off the facepiece by simply tightening or unscrewing the facepiece at one time even with a hand wearing fireproof gloves.

Description

Air respirator mask using string clamping device of simple tightening type

The present invention relates to a facepiece of an air respirator using a string tightening member of a simple tightening method, and more specifically, by enabling simple tightening or loosening of the facepiece tightening string even with hands wearing fire protection gloves, firefighters or air pollution at an urgent fire scene It allows field workers to put on and take off the face mask simply and quickly, while safely attaching it to the wearer's head or face. It relates to a facepiece of an air respirator using a string fastening member of a simple fastening method that shortens the time taken and reduces the hassle.

In general, an air respirator is a safety device used to protect human life from suffocation accidents in oxygen-deficient places such as industrial and fire sites or places polluted with toxic gas. It is mainly used by workers who have to work in industrial sites with

In particular, the air respirator used by firefighters supplies the compressed air of the air container loaded in the form of a backpack on the firefighter's back to a facepiece worn on the face so that they can breathe safely with compressed air. It plays an important role in protecting firefighters from toxic gases as it communicates the compressed air of the air tank while doing so.

Therefore, since the facepiece of such an air respirator must be worn in close contact with each wearer's face, a plurality of drawstrings that can be individually adjusted in length using a string connector are provided on the rear side near the crown, back of the head, and back neck of the facepiece. By lengthening or shortening the length of each drawstring, the length is adjusted according to the size of the head or face of each wearer so that the facepiece can be worn.

However, in the case of using such a drawstring, in order to wear the facepiece, the wearer or assistant directly stretches each drawstring loosely and puts the facepiece with the nose cup of the facepiece facing the face. Since the drawstrings have to be pulled in close contact with the wearer's head or face, not only does it take a long time to wear the facepiece, but in most cases, relatively thick firefighting gloves are worn. Giving also has the disadvantage of being quite cumbersome and not easy. In addition, in order to take off the faceplate, it has to be adjusted loosely by grabbing and stretching each drawstring once again, which is very unreasonable in a tense situation.

In addition, various unexpected emergency situations may occur at the fire site, and a face shield is used when extinguishing a fire, but the firefighters put at the fire site cannot perform the fire suppression for a long time. There is also a lot of inconvenience when you have to take off your facepiece to take a break or perform other tasks.

As described above, in the conventional air respirator, it is inefficient to pull each drawstring to fit the wearer's head or face, so in the case of most firefighters, the length of the drawstring is roughly adjusted to fit their head or face for quick wearing in an emergency situation. After that, even if it was difficult, I had to put my face into the face and wear it, so there was a lot of hassle in putting on and taking off the face.

Therefore, there is a need for a face-to-face tightening device for an air respirator that can put on or take off the face mask relatively quickly and easily in an urgent firefighting field, and can easily adjust the length of the drawstring to fit one's head or face even with a hand wearing thick protective gloves. did

KR 10-1210808 B1 2012.12.04. registration KR 10-1474519 B1 2014.12.12. registration

Therefore, the present invention is to solve the above problems, and the technical problem to be solved by the present invention is to simply tighten or loosen the octahedral drawstring at once even with a hand wearing a fire glove, so that firefighters or air Workers at the polluted site can easily and quickly put on or take off the facepiece without tightening or loosening it by pulling the drawstrings one by one with both hands. The purpose of this study is to provide an air respirator facepiece using a string fastening member of a simple tightening method that shortens the time required to wear the facepiece and reduces the hassle in urgent situations such as on-site or air pollution sites.

In one embodiment of the present invention for achieving the above object, in the air respirator facet including a rear hood that is connected or separated from the mask body, it is formed to be spaced apart from the edge of the mask body at regular intervals and a drawstring can come and go at the end A plurality of first guide members in which the first passing holes are formed, are formed spaced apart from the edges of the rear hood at regular intervals, and at the ends are formed second traffic holes through which the drawstring can come and go, the positions corresponding to the first guide members A plurality of second guide members formed in each, one end of which is fixed to the string fastening member, and the other end of the first guide member passes through the first passing hole of the first guide member and the second passing hole of the second guide member in a zigzag manner to tighten the string A drawstring fixed by returning to the member, and a drawstring installed on one side of the mask body and passed through the first guide member and the second guide member in a zigzag manner. Including a string tightening member that controls the winding member so that the tightening string is wound or unwound in the winding member, and when the dial cover member is rotated in one direction, the interval between the mask body and the rear hood is narrowed while the tightening string is wound around the winding member, It is an air respirator facepiece using a simple tightening type string tightening member, which is configured to expand the gap between the mask body and the rear hood as the tightening string is released from the winding member during pulling or reverse rotation.

According to the present invention, firefighters at an urgent fire scene can take a break or other work that does not require an air respirator by making it possible to simply tighten or loosen the drawstring at a time even with a hand wearing a fire protection glove. When taking off or re-wearing the belt, it is possible to take it off or use it simply and quickly without tightening or loosening it by pulling each one of the drawstrings one by one with both hands. It provides the advantage of shortening the time required to wear the facepiece of the respirator in urgent situations such as on-site or air pollution sites, and reducing the hassle.

1 is a perspective view illustrating an air respirator facet using a string tightening member of a simple tightening method according to the present invention.
FIG. 2 is an exploded perspective view illustrating an example by extracting the string fastening member of FIG. 1 .
Figure 3 is a rear view of the string tightening member of Figure 1;

Hereinafter, the configuration and operation of the facepiece of the air respirator using the string tightening member of a simple tightening method according to a preferred embodiment of the present invention and the effect thereof will be described in detail with reference to the accompanying drawings.

The terms or words used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, and on the principle that the designer can appropriately define the concept of the term in order to best describe his/her invention. Based on this, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, it is understood that there may be various equivalents and modifications that can be substituted for them at the time of the present application. shall.

1 is a perspective view illustrating an air respirator facet using a string tightening member of a simple tightening method according to the present invention, FIG. 2 is an exploded perspective view illustrating an excerpt of the string tightening member of FIG. 1, and FIG. 3 is the string of FIG. As a rear view of the tightening member, the face of the air respirator using the string tightening member of the simple tightening method according to the present invention is a plurality of first guide members 40 formed in the mask body 10 as illustrated in FIG. 1 , the rear A plurality of second guide members 50 formed on the hood 30, a drawstring 60 connecting each guide member in a zigzag, and a drawstring may be configured to include a string fastening member 100 for winding or loosening, and , it may be implemented in another embodiment by further including a twist preventing member (70). The facepiece of the air respirator according to each embodiment of the present invention has a lens 11 disposed in front, a lens frame 12 constraining the lens, and is integrally mounted with the lens frame so as to cover the entire face of the wearer. The mask body 10, which is formed to extend from the periphery of the wearer's face to the shape of the wearer's face, is tightly integrated with the mask body under the lens and has a built-in nose cup that can closely adhere to the skin around the wearer's nose and mouth. The vent 20 communicates the air of the external reservoir to the inside of the nose cup or exhausts the internal air discharged from the nose cup to the outside, and is formed to cover the back of the wearer's head and is connected to or separated from the mask body 10 It can be implemented by being applied to the air respirator facet including the rear hood 30.

The plurality of first guide members 40 are formed to be spaced apart from the edge of the mask body 10 by a predetermined interval, and may be formed by extending the body of the mask body 10 or may be formed by attaching a separate body, and a drawstring is provided at the end. A first passage hole 41 that can come and go is formed. The first guide member 40 and the first passage hole 41 are attached with a separate rigid material so that the first guide member 40 and the first passage hole 41 are not broken or damaged due to frequent traffic of the tightening string. can be configured. Here, the plurality of first guide members 40 are preferably formed at both sides of the wearer's forehead, both sides of the face, and both sides of the chin of the mask body 10, respectively.

The plurality of second guide members 50 are formed to be spaced apart from the edge of the rear hood 30 by a predetermined interval, and may be formed by extending the body of the rear hood 30 or may be formed by attaching a separate body, and a drawstring is provided at the end. The second passage holes 51 that can come and go are formed, respectively, at positions corresponding to the first guide members 40 of the mask body 10 . The second guide member 50 and the second passage hole 51 are also attached with a separate rigid material so that the second guide member 50 and the second passage hole 51 are not broken or damaged due to frequent movement of the tightening string. can be configured.

The drawstring 60 has one end fixed to the inside of the string fastening member 100 and the other end of the first guide member 40 has a second travel hole 41 and a second guide member 50 . After passing through the hole 51 in a zigzag manner, it is fixed by returning to the string tightening member 100 again. Such a drawstring 60 may be configured to include an elastic material so as to be stretchable in the longitudinal direction, and has a non-combustible or insulating property that has been subjected to flame-retardant processing or chemical resistance or corrosion-resistance to withstand exposure at a fire site or air pollution site. It is preferable to use a woven fabric or resin.

The twist preventing member 70 is disposed through the point where the drawstring 60 intersects and includes a sewing part 71 that the drawstring 60 can cross and come and go so that the drawstring 60 passes through the sewing part 71 . Guide them so they don't clump together or become tangled. This anti-twist member 70 is also preferably composed of a fabric or resin having non-combustible or insulating properties that have been processed to withstand combustion or chemical resistance or corrosion resistance to withstand exposure even at a fire site or air pollution site, and such an anti-tangle member (70) can also be omitted in implementing the present invention.

The string tightening member 100 includes a winding member 120 inside and a dial cover member 140 on the outside, a first guide member 40 formed in the mask body 10 and a second guide member 40 formed in the rear hood 30 . Both ends of the drawstring 60 passing through the guide member 50 in a zigzag manner are fixed with the winding member 120 , and the rotational operation of the winding member 120 is controlled with the outer dial cover member 140 to control the winding member 120 . ) in such a way that the drawstring is wound or unfastened so that it can be intercepted. Preferably, when the dial cover member 140 is rotated in one direction, the gap between the mask body and the rear hood is narrowed while the drawstring is wound around the winding member 120, and when the dial cover member 140 is pulled or rotated in reverse, the winding member ( 120), as the drawstring is released, the gap between the mask body and the rear hood is extended. This string fastening member 100 is one side or upper part of the mask body 10 by a detachable member using either a tick button method, a screw coupling method, or a Velcro attachment method, that is, both left and right sides near the forehead or left and right sides near the crown Both sides, it may be attached to the left and right sides in the vicinity of the ball to be movable.

The string fastening member 100 used in the present invention to perform this function is a typical configuration as illustrated in FIGS. 2 and 3 , and a housing member 110 , a winding member 120 , an intermediate member 130 . , a dial cover member 140 , an elastic member 150 , and a coupling shaft 160 .

The housing member 110 has a circular container 111 shape that is attached to the mask body 10, and a bottom plate 112 is provided at the bottom of the container 111, and the body protrudes downward from the bottom of the bottom plate 112. The formed spring fixing part 115 is provided so that the elastic member 150 is coupled, and the coupling shaft coupling hole 116 having a shape corresponding to the shape of the column of the coupling shaft so that the coupling shaft 160 can be vertically penetrated and fastened. A ratchet gear 113 that is formed in the central part of the container 111 and allows one-way rotation is formed along the circumference on the inner circumferential surface of the container 111, and through-holes 114 are formed in both side walls of the container 111 so that the tightening string can come and go. is composed

The winding member 120 is formed with a fixing auxiliary groove 124 for fixing the end of the tightening string 60 to the reel-shaped body, so that both ends of the tightening string 60 are fixed and wound or unwound, and the central part of the body has a coupling shaft ( A coupling shaft through hole 126 through which 160 can pass vertically is formed, a rotation groove 121 is formed in the upper portion of the body around the hole, and a locking protrusion 122 is formed in the rotation groove 121 . The locking protrusion 122 is formed on the intermediate member 130 and the locking protrusion 122 formed on the winding member 120 when the intermediate member 130 stacked on the upper portion of the winding member 120 rotates by the action of an external force. As the auxiliary locking part 134 is closely attached, the winding member 120 rotates in the same direction according to the rotation of the intermediate member 130 . In addition, an inclined surface 123 is formed on one side of the engaging protrusion 122 of the winding member 120 to facilitate coupling with the intermediate member 130 according to the action of an external force, and rotates in the container 111 of the housing member 110 . possible to be inserted.

The intermediate member 130 is coupled to the upper portion of the winding member 120 to be rotatably disposed, the wing portions 131 having elastic support force are formed on both sides of the body, and the housing member 110 is formed on the outer periphery of each wing portion 131 . ) is provided with a restraining jaw 132 selectively fitted to the ratchet gear 113 of the housing member 110 and rotates in one direction by the ratchet gear 113 of the wing portion 131 inside the intermediate member 130. A rotation pressing groove 133 is formed so that the wing portion 131 is caught on the protruding pillar 142 of the dial cover member 140 during rotation along the other circumferential direction to be pressed radially inwardly. In addition, a screw through hole 136 to which the screw member 170 can be fastened up and down is formed in the central portion of the body of the intermediate member 130 , and the lower portion of the body of the intermediate member 130 has a hook formed in the winding member 120 . An auxiliary locking portion 134 to be in close contact with the protrusion 122 is formed. Here, the other direction is the other direction if the ratchet gear 113 formed on the inner circumferential surface of the container 111 of the housing member 110 is toothed so that the ratchet gear 113 rotates in the clockwise direction.

The dial cover member 140 has a screw fastening hole 146 through which the screw member 160 can be fastened up and down is formed in the center of the body, and a friction groove 141 is formed on the outer circumferential surface to facilitate transmission of external force by gripping. A plurality of protruding pillars 142 are formed at the lower end of the body to be inserted into the rotation pressing groove 133 of the intermediate member 130 to press the wing portion 131 radially inward when rotating in the other circumferential direction. It is coupled to the upper portion of the member 130 . Here, the external force may be generated by gripping the dial cover member 140 and rotating it clockwise or counterclockwise, or may be generated by pulling the drawstring. It is preferable that it is composed of a structure that can be loosened and that the drawstring can only be tightened by pulling the drawstring.

The elastic member 150 is coupled to the spring fixing part 115 formed by protruding downward from the body of the bottom plate 112 of the housing member 110 , and is interposed between the housing member 110 and the coupling shaft 160 to be coupled. The shaft 160 is elastically supported. At both ends of the elastic member 150, extension parts 151 are formed in which the body is bent and extended inward so as to be interposed along the edges of the spring fixing parts 115. It is fixedly installed so as to be supported by being caught on the fixing jaws 115a of the government 115 .

The coupling shaft 160 is provided with a fastening part 161 interacting with the elastic member 150 at the lower end, and a locking protrusion 162 selectively fixed in close contact with the elastic member 150 at the upper part of the fastening part 161. It is provided, and the close contact end 163 is formed at a point at a certain height where the winding member 120 is coupled, and passes through the central portion of the housing member 110 and the winding member 120 to the intermediate member 130 and the dial cover member ( 140), the lower end is elastically supported by the elastic member 150 built into the housing member 110, and the screw groove 164 is formed in the upper inner side of the body to form the housing member 110 and the winding member 120 ), the intermediate member 130 and the dial cover member 140 are screwed together with the screw member 170 in a state interposed therebetween. On the upper side of the fastening part 161 and the locking jaw 162 of the coupling shaft 160, the outer periphery of the extension part 151 of the elastic member 150 coupled to the lower part of the housing member 110 is coupled in a close contact state. desirable. Therefore, when the coupling shaft 160 is pulled upward, the locking jaw 162 of the fastening part 161 moves upward while pushing the extension part 151 of the elastic member 150 to the left and right, and the locking jaw 162 is When it completely passes between the extension parts 151, the extension part 151 is caught and supported by the fastening part 161 under the locking jaw 162 while returning to its original shape due to the elastic recovery force, so that the coupling shaft 160 is fixed. .

The operation of the facepiece of the air respirator using the string tightening member of the simple tightening method configured as described above and the effect thereof will be described as follows.

First, the string tightening member 100 fixes one end of the drawstring 60 to the winding member 120 , and the other end of the drawstring 60 having one end fixed to the winding member 120 is the housing member 110 . ) through the one side through-hole 114 of the inner side to the outside, the first passage hole 41 of the first guide member 40 and the second passage hole 51 of the second guide member 50 in a zigzag pattern. After passing through, it is fixed to the winding member 120 by returning to the inside of the string tightening member 100 through the through hole on the other side of the housing member 110 .

Thereafter, the winding member 120 is rotatably inserted into the housing member 110 , and the restraining jaw 132 of the intermediate member 130 is wound in a state where it is engaged with the ratchet gear 113 of the housing member 110 . After coupling the intermediate member 130 to the upper portion of the member 120 , the downwardly formed protruding pillar 142 of the dial cover member 140 is rotated pressing groove 133 formed inside the wing portion 131 of the intermediate member 130 . ), the dial cover member 140 is coupled to the upper portion of the intermediate member 130 so as to be located inside.

Then, the upper portion of the coupling shaft 160 passes through the central portion of the housing member 110 and the winding member 120 in turn, and the upper portion of the close contact end 163 of the coupling shaft 160 is the intermediate member 130 and the dial cover member ( After passing through the central portion of the 140), the assembly is completed by coupling the screw member 170 to the screw groove 164 of the coupling shaft 160 .

When the assembly of the string fastening member 100 is completed in this way, the restraining jaw 132 of the intermediate member 130 is engaged with the ratchet gear 113 of the housing member 110 and is assembled in a state where it is coupled.

Afterwards, when the dial cover member 140 is pulled or reversely rotated to put on or take off the facepiece of the air respirator, the engaging jaw 162 of the coupling shaft 160 resiliently presses the elastic member 150 to open the intermediate member 130. rises and the engagement of the restraint jaw 132 of the intermediate member 130 and the ratchet gear 113 of the housing member 110 is released, and the tightening string 60 is unwound from the winding member 120, and the mask body 10 and The spacing of the rear hood 20 is loosened.

As described above, in a state where the gap between the mask body 10 and the rear hood 20 is loosened, it is possible to conveniently and easily put on or take off the facepiece of the air respirator according to the intention of the wearer.

When the dial cover member 140 is rotated in one direction while wearing the facepiece of the air respirator, the drawstring 60 is wound around the winding member 120 while the first passing hole 41 of the first guide member 40 and the second The second passage hole 51 of the guide member 50 is pulled in close contact with each other, and the gap between the mask body 10 and the rear hood 20 is narrowed. Accordingly, the wearer can adjust the rotation angle of the dial cover member 140 in one direction to bring the mask body 10 and the rear hood 20 into close contact to fit the wearer's face and back of the head, respectively.

Conversely, when the dial cover member 140 is pulled or reversely rotated while wearing the facepiece of the air respirator, the locking jaw 162 of the coupling shaft 160 resiliently presses the elastic member 150 to open the intermediate member 130. rises, the engagement between the restraint jaw 132 of the intermediate member 130 and the ratchet gear 113 of the housing member 110 is released, and the tightening strap is released from the winding member 120, and the mask body 10 and the rear hood ( 20) is loosened, so that the wearer can conveniently and easily take off the facepiece of the respirator.

According to the present invention, by rotating the dial cover member in one direction, it is possible to quickly tighten the drawstring at a time, and by pulling or reversely rotating the dial cover member, it is possible to quickly loosen the drawstring at the same time. When the facepiece is removed or put back on for rest or other tasks that do not require a respirator, it can be operated quickly even with thickly gloved hands, such as fire-retardant gloves or work gloves. It offers the advantage of being able to quickly take off and put on without tightening or loosening by manually pulling each of the multiple drawstrings with both hands to put on or take off.

In addition, the present invention makes it possible to simply tighten or loosen the tightening straps of the facepiece at once by rotating the dial cover member in one direction or in a reverse direction. It can be safely worn by fitting it closely to the face or face, so it has the advantage of shortening the time required to wear the facepiece of the respirator and reducing the hassle in urgent situations such as a fire scene or air pollution site where oxygen is insufficient. do.

10: mask body 11: lens
12: lens frame 20: ventilation
30: rear hood 40: first guide member
41: first traffic hall 50: second guide member
51: second travel hole 60: tightening string
70: twist preventing member 71: sewing part
100: string fastening member 110: housing member
111: container 112: bottom plate
113: ratchet gear 114: through hole
115: spring fixing part 116: coupling shaft fastening groove
120: winding member 121: rotation groove
122: locking protrusion 123: inclined surface
124: fixing auxiliary groove 126: coupling shaft through hole
130: intermediate member 131: wing portion
132: restraint jaw 133: rotation pressing groove
136: screw through hole 140: dial cover member
141: friction groove 142: protruding column
146: screw fastening hole 150: elastic member
151: extension 160: coupling shaft
161: fastening part 162: locking jaw
163: close contact end 164: screw groove
170: screw member

Claims (6)

In the air respirator facet including the rear hood 30 connected or separated from the mask body 10,
A plurality of first guide members (40) formed to be spaced apart from the edge of the mask body (10) by a predetermined distance and having a first passage hole (41) at the end of which a tightening string can come and go;
A second passage hole 51 is formed at the edge of the rear hood 30 to be spaced apart from each other and at the end of which a tightening string can come and go, and correspond to each of the first guide members 40 of the mask body 10 . a plurality of second guide members 50 respectively formed in positions to be used;
One end is fixed to the string fastening member and the other end passes through the first passage hole 41 of the first guide member 40 and the second passage hole 51 of the second guide member 50 in a zigzag manner. The tightening string 60 is fixed by returning back to the string tightening member; and
It is installed on one side of the mask body 10 and the first guide member 40 and the second guide member 50 pass through the zigzag both ends of the drawstring 60 fixed by the winding member 120, Including; including,;
When the dial cover member 140 is rotated in one direction, the gap between the mask body and the rear hood is narrowed as the drawstring is wound around the winding member inside the string fastening member, and when the dial cover member 140 is pulled or rotated in reverse, the winding An air respirator face body using a simple tightening type string tightening member, characterized in that the gap between the mask body and the rear hood is extended as the tightening string is released from the member. According to claim 1, wherein the plurality of first guide members (40),
An air respirator face body using a string tightening member of a simple tightening method, characterized in that the mask body (10) is formed on both sides of the wearer's forehead, both sides of the face, and near both sides of the chin. According to claim 1, wherein the drawstring (60),
Simple, characterized in that it contains an elastic material that can be stretched in the longitudinal direction and is composed of a non-combustible or insulating fabric or resin that has been treated with flame-retardant processing, chemical resistance, or corrosion resistance to withstand exposure to fire or air pollution sites. A facepiece of an air respirator using a tightening type string tightening member. According to claim 1, wherein the string fastening member 100,
By using a detachable member using either a tick-tick button method, a screw-on method, or a Velcro attachment method, the position of the mask body 10 can be moved on the left and right sides near the forehead, on the left and right sides near the crown, and on the left and right sides near the cheek An air respirator facepiece using a string tightening member of a simple tightening method, characterized in that it is tightly attached. According to claim 1,
It is disposed through the point where the drawstring 60 intersects and the drawstring 60 is provided with a sewing part 71 that can cross and come and go, so that the drawstring 60 is guided to pass the sewing part 71 and bundled with each other. The air respirator facepiece using a string tightening member of a simple tightening method, characterized in that it further includes; According to claim 1, wherein the string fastening member 100,
In the shape of a circular container 111 attached to the mask body 10 , a bottom plate 112 is provided at the bottom of the container 111 , and a spring fixing part is formed by protruding downward from the bottom of the bottom plate 112 . 115 is provided, the elastic member 150 is coupled, the coupling shaft 160 is formed in the central portion of the hole 116 that can penetrate up and down, and the ratchet gear 113 allowing one-way rotation is the container 111 . The housing member 110 is formed along the circumference of the inner circumferential surface of the container 111, the through-holes 114 are formed in the side walls of the container 111, the tightening string is configured to come and go;
A fixing auxiliary groove 124 for fixing the end of the drawstring 60 is formed in the reel-shaped body, so that both ends of the drawstring 60 are fixed and wound or unwound, and the coupling shaft 160 is vertically penetrated in the central part of the body. A hole 126 is formed, a rotating groove 121 is formed in the upper portion of the body around the hole, a locking protrusion 122 is formed in the rotating groove 121, and an intermediate member according to the action of an external force in the locking protrusion 122 (130) a winding member (120) having an inclined surface (123) formed on one side to facilitate coupling with the housing member (110) and rotatably inserted into the container (111) of the housing member (110);
It is coupled to the upper portion of the winding member 120 and is rotatably disposed, the wing portions 131 having elastic support force are formed on both sides of the body, and the ratchet gear 113 is selectively attached to the outer periphery of each wing portion 131 . It is provided with a matching restraint jaw 132 and rotates in one direction by the ratchet gear 113, and when the intermediate member 130 inside the wing part 131 rotates along the other circumferential direction, the wing part 131 is an intermediate member 130 in which a rotation pressing groove 133 is formed so as to be caught on the protruding pillar 142 of the dial cover member 140 to be pressed radially inwardly;
A friction groove 141 is formed on the outer peripheral surface to facilitate transmission of external force by gripping, and is inserted into the rotation pressing groove 133 at the lower end of the body to press the wing portion 131 radially inward when rotating in the other circumferential direction. a dial cover member 140 having a plurality of protruding pillars 142 formed thereon and coupled to an upper portion of the intermediate member 130;
The body is coupled to a spring fixing part 115 formed by protruding downward from the bottom plate 112 of the housing member 110 and interposed between the housing member 110 and the coupling shaft 160 to provide a coupling shaft 160 . An elastic member 150 for elastically supporting the; and
A fastening part 161 that interacts with the elastic member 150 is provided at the lower end, and a locking jaw 162 selectively fixed to the elastic member 150 is provided on the upper part of the fastening part 161, A close contact end 163 is formed at a point at a predetermined height where the winding member 120 is coupled, and passes through the central portion of the housing member 110 and the winding member 120 to the intermediate member 130 and the dial cover member ( 140), the lower end is elastically supported by the elastic member 150 built into the housing member 110, and a screw groove 164 is formed in the upper inner side of the body to form the housing member 110 and the winding member ( 120), a coupling shaft 160 screwed to the screw member 170 with the intermediate member 130 and the dial cover member 140 interposed therebetween; including, when the dial cover member 140 is rotated in one direction The engagement state between the restraining jaw 132 of the intermediate member 130 and the ratchet gear 113 of the housing member 110 is maintained, and when the dial cover member 140 is pulled or reversely rotated, the locking jaw 162 is an elastic member. A simple fastening type string fastening member, characterized in that the intermediate member 130 rises by resiliently pressing 150 to release the engagement between the restraining jaw 132 and the ratchet gear 113. Air respirator using .

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