WO2016032228A1

WO2016032228A1 - Gas mask eyeglasses

Info

Publication number: WO2016032228A1
Application number: PCT/KR2015/008924
Authority: WO
Inventors: 김종기
Original assignee: 김종기
Priority date: 2014-08-28
Filing date: 2015-08-26
Publication date: 2016-03-03
Also published as: KR101539657B1; TW201621402A; TWI557464B

Abstract

The present invention relates to gas mask eyeglasses. The present invention comprises: an eyeglass frame which is provided with eyeglass lenses; a guide rail which is installed in a see-through window of a gas mask; a guide block which moves along the guide rail with the eyeglass frame; a locking member which pressurizes the guide rail and the guide block, thereby fixing same on a location on one side; and a guide passage and a pocket which are formed between the guide block and the eyeglass frame. The present invention enables moving the eyeglass frame along the guide rail and fixing same.

Description

Gas mask glasses

The present invention relates to a gas mask, and more particularly, to a glasses for gas masks that can be equipped with the glasses inside the viewing window of the gas mask to ensure the vision of the low vision when the low vision wears the gas mask accurately.

In general, the gas mask is worn on the wearer's face to protect the human body from toxic gases in the contaminated area. This gas mask provides the purged air to the wearer's respiratory tract through a purse container coupled to the mask. Thus, the wearer can safely operate in the contaminated area.

This gas mask has a face part which seals a face part, a see-through window provided in the upper part of a face part, a purifying tank provided in the side of a face part, an exhaust unit provided in the lower center part of a face part, etc.

Such a gas mask secures a watch through a viewing window, but in the case of a low vision person, since a watch cannot be secured accurately by a viewing window alone, a structure for attaching a separate gas mask glasses suitable for a low vision person to the inside of the gas mask is provided. .

In addition, since gas masks have different face structures and facial sizes and different eye positions, the glasses for gas masks cannot easily secure the vision of the low vision person.

Accordingly, in recent years, a position adjusting structure that can easily adjust the position of the gas mask glasses is used to easily secure a low vision person's watch.

However, the conventional gas mask glasses have a disadvantage in that the position adjustment of the glasses is difficult because the position adjustment structure is very complicated, and the fixing operation for fixing after the position of the glasses is adjusted is not easy.

In addition, the conventional gas mask glasses have a disadvantage in that the position adjustment structure for adjusting the position is very complicated, and not only takes a lot of components used, but also the assembly cost is very high.

The present invention was created in order to overcome the disadvantages of the prior art as described above, by applying a very simple position adjustment structure to make the position adjustment of the glasses for gas masks very easy and very firmly and stably fixed the adjusted position of the glasses The purpose is to provide a gas mask for glasses.

Glasses mounting device for gas mask according to the present invention for achieving the above object, the spectacle frame provided with a pair of spectacle lenses; A guide rail installed vertically in a viewing window of the gas mask; A guide block coupled to the spectacle frame to move up and down together with the spectacle frame, and to move up and down along the guide rail to adjust its vertical position; A locking member installed on the eyeglass frame to fix the guide block to one side of the guide rail by pressing the guide rail and the guide block; A guide passage formed in a hole shape between the guide block and the spectacle frame and into which the guide rail is inserted; And a pocket formed between the guide block and the spectacle frame in a state in communication with the guide passage so that the locking member can be vertically moved.

The locking member may include a body having an inclined surface formed in an inclined state on one side facing the one surface of the pocket and a pressing surface formed on the other side of the inclined surface to face the guide rail.

The pocket further includes an inclined sheet formed on one surface of the locking member facing the inclined surface, the inclined sheet corresponding to the inclined surface, and the inclined surface sliding in close contact with the inclined surface.

The locking member slides the inclined surface in close contact with the inclined sheet in the pocket and presses the guide rail and the guide block through the pressing surface to fix the guide block to one side of the guide rail. Or unlock it.

The locking member further includes a gripping part protruding and gripped to the outside of the spectacle frame or the guide block.

The locking member is moved inside the pocket according to the operation of the gripping portion.

The locking member may include a pair of elastic ribs accommodated in the pocket and elastically deformed in a closed state as they are formed by being opened to both sides at an end of the body provided with the inclined surface; And a locking protrusion protruding from an end of the elastic rib.

The pocket further includes a locking jaw fixed to the locking protrusion by a side facing the locking protrusion.

The spectacle frame may include a plurality of coupling protrusions protruding from one side of the guide block and configured to be spaced apart from each other; And a fitting portion protruding from the coupling protrusion.

The guide block, the fitting holder in the form of a hole in which the fitting portion is fitted; And a side wall formed to have a length corresponding to the protruding length of the coupling protrusion to space the fitting holder from the surface of the spectacle frame.

The present invention, the first catching teeth formed in the saw tooth shape along the longitudinal direction of the guide rail on one surface of the guide rail facing the guide block; And a second catching tooth formed on one surface of the guide block facing the first catching tooth to engage with the first catching tooth and restrain the guide block to the guide rail in a locked state. .

The side wall is provided with a snap projection, characterized in that the coupling protrusion is provided with a coupling groove for snapping the snap projection.

The width of the fitting portion is formed smaller than the width of the engaging projection is formed with a stepped portion is formed in the portion where the fitting portion and the engaging projection meets, characterized in that the end surface of the fitting holder of the guide block is in contact.

The gripping portion is characterized in that the uneven portion is provided.

The spectacle frame has a pair of openings in which a pair of spectacle lenses are installed, and each opening is formed with a support jaw for supporting the spectacle lens.

According to the present invention, by applying a simple position adjustment structure that combines the guide block moving up and down along the guide rail to the spectacle frame, it takes not only a small number of components, but also the assembly process is simplified, greatly reducing the manufacturing cost, the spectacle frame The up and down position of the control is very easy and there is an advantage to reduce the manufacturing cost.

In particular, the eyeglass frame coupled to the guide block by firmly fixing the guide block to one side position of the guide rail by pressing the guide rail and the guide block by the locking member can be kept very firm and stable in the adjusted position There is an advantage.

According to the present invention, the guide block can be formed very easily through the very simple coupling structure coupled to the coupling protrusion of the eyeglass frame and the guide frame through the eyeglass frame and the guide block, so that the guide block is moved up and down with respect to the guide rail. The movement can be made very stable and accurate, and also the first rail and the second latching type of the guide block are formed at positions facing each other, so that the position adjustment according to the vertical movement of the guide block can be made stable and accurate. There is an advantage.

According to the present invention, as the fitting portion of the coupling protrusion is fitted to the fitting holder of the guide block, the guide block can be easily coupled to the coupling protrusion of the eyeglass frame, and the guide when the fitting portion of the coupling protrusion is coupled to the fitting holder of the guide block. As the snap protrusion of the block snaps to the coupling groove of the coupling protrusion, the guide block can be coupled to the coupling protrusion of the spectacle frame very firmly, and thus, the guide passage between the guide block and the spectacle frame can be more stably secured. have.

According to the present invention, the guide passage between the guide block and the spectacle frame can be kept constant as the rear face of the fitting holder of the guide block is in contact with the stepped portion of the coupling protrusion when the fitting portion of the coupling protrusion is coupled to the fitting holder of the guide block. Therefore, there is an advantage that can secure the guide passage more stably.

According to the present invention, since the forward and backward movement of the locking member is made stable by the vertical movement of the locking member by the inclined surface and the inclined sheet, the fixing and releasing operation of the guide block by the locking member can proceed very easily and quickly, in particular locking. As the inclined surface of the member slides along the inclined sheet of the pocket, the locking member presses the guide rail and the guide block, thereby advantageously fixing the guide block in a very stable position at one side of the guide rail.

According to the present invention, as the locking projection of the elastic rib is caught by the locking groove of the pocket during the upward movement of the locking member, there is an advantage in that the fixing of the guide rail and the guide block by the locking member can be stably maintained.

The present invention has the advantage that the elastic locking action of the elastic ribs can be made more smoothly by the locking projection and the locking projection of the curved structure.

The present invention has the advantage that the fixing and releasing operation of the guide block by the locking member by the structure of the gripping portion provided on the rear surface of the locking member protrudes to the rear of the spectacle frame.

The present invention has the advantage that the spectacle lens fitted to each opening of the spectacle frame by the support jaw provided in the opening of the spectacle frame can be effectively prevented from coming off.

1 is a front view showing a state in which the gas mask for the gas mask according to the present invention is applied to the gas mask.

2 is a perspective view showing a gas mask for glasses according to an embodiment of the present invention.

3 is an exploded perspective view showing the gas mask for glasses according to an embodiment of the present invention.

Figure 4 is an exploded perspective view seen from the rear of the gas mask for glasses according to an embodiment of the present invention.

Figure 5 is a front view showing the front of the gas mask for glasses according to an embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 5.

FIG. 7 is an enlarged view of a portion B of FIG. 6.

FIG. 8 is a view illustrating a state in which the locking member moves upward to press the guide rail toward the guide block in FIG. 7.

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 5.

FIG. 10 is a cross-sectional view taken along the line D-D of FIG. 9.

11 is a rear view showing the rear surface of the spectacle frame according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 11 is a view showing a gas mask for glasses according to an embodiment of the present invention.

As shown in Figure 1 to Figure 11, the gas mask mounting apparatus for a gas mask according to the present invention, the spectacle frame 10 is provided with a pair of spectacle lens 11, and the upper and lower sides in the viewing window (2) of the gas mask 1 The guide rail 20 installed in the direction, the guide block 30 is coupled to the spectacle frame 10 to move up and down with respect to the guide rail 20, and is installed on the spectacle frame 10 to guide the guide block 30 It includes a locking member 40 for fixing to one side of the position (20).

As illustrated in FIG. 1, the gas mask 1 includes a face part 2 that seals the wearer's face, a viewing window 3 provided on an upper part of the face part 2, and a purifying container 4 provided on the side of the face part 2. ) And an exhaust unit 5 or the like provided in the lower center portion of the face portion 2.

As shown in FIG. 1, the spectacle frame 10 is installed to adjust its up and down position inside the viewing window 2 of the gas mask 1, and the spectacle frame 10 is a pair of spectacle lenses 11 suitable for low vision. Has a pair of openings installed in a snap coupling manner.

In addition, as shown in FIGS. 2 to 5, each opening of the spectacle frame 10 is provided with a support jaw 10a capable of stably supporting the spectacle lens 11, and in particular, the support jaw 10a is a spectacle frame ( It is formed so as to be stepped toward the opening from one edge of the opening of 10) to support a part of the spectacle lens 11 installed in the opening of the spectacle frame 10. In this way, the spectacle lens 11 fitted to each opening of the spectacle frame 10 can be effectively prevented from being separated outwardly as well as being very stably supported by the support jaw 10a.

2 to 5, the support jaw 10a is provided at the front side of the opening of the spectacle frame 10 so that the spectacle lens 11 is separated from the front side in a state in which the spectacle lens 11 is coupled at the rear of the spectacle frame 10. This can be reliably prevented.

As shown in FIG. 3, the spectacle frame 10 has a pair of engaging projections 15 protruding forward in the front central portion thereof, and the pair of engaging projections 15 are in the width direction of the spectacle frame 10. Spaced apart.

Guide rail 20 is composed of a plate extending in the longitudinal direction is installed in the vertical direction inside the viewing window (2) of the gas mask (1), the upper and lower ends of the guide rail (20) the viewing window of the gas mask (1) 2) is coupled to the inside. As shown in FIG. 1,

fitting grooves

2a and 2b are respectively provided on the upper and lower edges of the gas mask 1 to which the viewing window 2 is coupled. The

fitting grooves

2a and 2b are made of the same rubber material as the gas mask 1, and are formed in the same body on the gas mask 1, and the

fitting grooves

2a and 2b are formed on the upper end of the guide rail 20 by the characteristics of the rubber material. And elastically receive the bottom.

The lower end of the guide rail 20 is formed with a lower bent part 23, and the lower end of the guide rail 20 is more easily fitted into the lower fitting groove 2b by the lower bent part 23. Can be. The lower bent portion 23 is bent to protrude forward in the see-through window 2 of the gas mask 1 to prevent the internal space of the gas mask 1 from being reduced. If the lower end of the guide rail 20 is formed in a straight line, since the lower end of the guide rail 20 protrudes from the inside of the gas mask 1, the internal space of the gas mask 1 may be reduced. On the other hand, as the guide rail 20 of the present invention is bent so that the lower bent portion 23 protrudes forward, the inner space of the gas mask 1 is not reduced, and the face of the wearer's face and the guide rail 20 are not reduced. Since the bottom does not contact, there is an advantage that the fit is increased.

The guide rail 20 is formed with a toothed first catching tooth 21 in a longitudinal direction on one surface (front face) facing the guide block 30, and the first catching tooth 21 has a constant pitch. It is formed up and down continuously. The rear surface of the guide rail 20 is formed flat, the rear surface of the guide rail 20 is configured to be pressed by the pressing surface 41 of the locking member 40 to be described later.

As the guide block 30 is coupled to the coupling protrusion 15, a guide passage 25 is inserted between the guide block 30 and the spectacle frame 10 and inserted therethrough as shown in FIG. 10. Both sides of the guide passage 25 are closed by a pair of engaging projections 15 to form a hole shape of the "ㅁ" shaped cross section corresponding to the rectangular cross section of the guide rail 20. The guide passage 25 of the "ㅁ" shaped cross section is exposed by the front surface of the pair of engaging projection 15, the guide block 30 and the eyeglass frame 10, the guide rail 25 in the guide passage 25 As the 20 is stably arranged, the guide block 30 and the eyeglass frame 10 with respect to the guide rail 20 may be guided in a very stable up and down movement thereof.

In addition, the guide block 30 is formed in the form of a sawtooth on one surface (rear side) facing the first catching teeth 21 of the guide rail 20, the second catching teeth engaged with the first catching teeth 21. 31 is formed. The second catching teeth 31 are formed vertically and continuously at a predetermined pitch corresponding to the first catching teeth 21. Thus, when the guide block 30 moves up and down along the guide rail 20, the second catching tooth 31 of the guide block 30 is caught by the first catching tooth 21 of the guide rail 20. As it is constrained, the position adjustment during the vertical movement can be made very stable and precise.

As such, the guide passage through which the guide rail 20 passes between the spectacle frame 10 and the guide block 30 through a very simple coupling structure in which the guide block 30 is coupled to the coupling protrusion 15 of the spectacle frame 10. Since the 25 can be formed very simply, the guide block 30 can be made very stable and accurate with respect to the guide rail 20.

Meanwhile, as illustrated in FIGS. 3 and 4, the guide block 30 has a “c” shaped cross-sectional structure having a pair of sidewalls 33 on both sides thereof, and each sidewall of the guide block 30 ( Adjacent to 33 is a fitting holder 34. The side wall 33 is formed to a length corresponding to the protruding length of the coupling protrusion 15 described above, when the guide block 30 is coupled to the fitting portion 14 to be described later formed on the coupling protrusion 15 holder ( 34) serves as a spacer spaced apart from the surface of the spectacle frame (10).

And, the engaging projection 15 of the spectacle frame 10 has a fitting portion 14 which is fitted to the fitting holder 34 of the guide block 30 at its tip. As the fitting portion 14 of the coupling protrusion 15 is fitted to the fitting holder 34 of the guide block 30, the guide block 30 may be coupled to the coupling protrusion 15 of the spectacle frame 10 very easily. Can be.

As shown in FIG. 9, the width w1 of the fitting portion 14 is formed to be smaller than the width w2 of the coupling protrusion 15, whereby the fitting portion 14 and the coupling protrusion 15 meet each other. Step 16 is formed. The stepped portion 16 is formed to be flat in the vertical direction, so that the rear surface of the fitting holder 34 of the guide block 30 is in contact with the stepped portion 16 so that the coupling position of the guide block 30 can be easily determined. Can be. As such, when the fitting portion 14 of the coupling protrusion 15 is coupled to the fitting holder 34 of the guide block 30, the rear surface of the fitting holder 34 of the guide block 30 is formed in the coupling protrusion 15. The contact path 25 between the guide block 30 and the spectacle frame 10 can be kept constant as it comes into contact with the stepped portion 16, and thus, the guide path 25 can be more stably secured. There is this.

In addition, each side wall 33 of the guide block 30, the snap projections 36 protrude in a hook shape toward the outer surface of the engaging projection 15, the snap projections 36 on the outer surface of the engaging projection 15 Is coupled to the coupling groove 13 is formed. Accordingly, when the fitting portion 14 of the coupling protrusion 15 is coupled to the fitting holder 34 of the guide block 30, the snap protrusion 36 of the guide block 30 is coupled to the coupling groove of the coupling protrusion 15 ( 13, the guide block 30 may be more firmly coupled to the coupling protrusion 15 of the spectacle frame 10, and thus the guide passage 25 between the guide block 30 and the spectacle frame 10 may be coupled thereto. ) Has the advantage of more stable.

The locking member 40 is installed to move vertically through the central portion of the spectacle frame 10, and the locking member 40 moves the guide rail 20 toward the guide block 10 side by moving up and down with respect to the spectacle frame 10. By pressing, the guide block 30 and the spectacle frame 10 coupled thereto are firmly fixed to one side of the guide rail 20.

A pocket 18 is formed between the central portion of the spectacle frame 10, in particular, the pair of engaging projections 15, and the locking member 40 is installed in the pocket 18 so as to be movable up and down. The pocket 18 is formed between the guide block 30 and the spectacle frame 10 in a state in communication with the guide passage 25 as shown in FIG. 6 so that the locking member 40 can be moved up and down. to be.

The locking member 40 is formed on one side (upper side) of the inclined surface 42 opposite to one surface of the pocket 18 and on the other side (front side) of the inclined surface 42 and pressed against the guide rail 20. It is composed of a body of the sculpture form provided with a surface (43). The pocket 18 has an inclined sheet 17 in close contact with the inclined surface 42 while having an inclination corresponding to the inclined surface 42 on one surface (top) corresponding to the inclined surface 42 of the locking member 40. 7 and 8, when the locking member 40 moves up and down along the pocket 18, the inclined surface 42 of the locking member 40 is inclined in close contact with the inclined sheet 17 of the pocket 18. Sliding along the seat 17, the locking member 40 is fixed to the release of the guide block 30 can be made very easy by the vertical movement is converted to the front and rear movement. At this time, the inclined sheet 17 presses the inclined surface 42 of the locking member 40 when the locking member 40 moves upward as shown in FIG. 8 to press the pressing surface 43 of the locking member 40. The guide block 30 is fixed to one side of the guide rail 20 through the locking member 40, and when the locking member 40 moves in reverse as shown in FIG. 7, the pressure is released to release the locking of the locking member 40.

Looking at this operation in more detail, as shown in Figure 7 when the locking member 40 is located in the lower side in the pocket 18, the first engaging teeth 21 and the guide block 30 of the guide rail 20 The two engagement teeth 31 are spaced apart from each other. In such a state that the first catching teeth 21 of the guide rails 20 and the second catching teeth 31 of the guide block 30 are separated from each other, the guide block 30 and the eyeglass frame along the guide rails 20 ( By moving the up and down easily 10) it is possible to very easily adjust the vertical position of the guide block 30 and the spectacle frame 10.

Then, after adjusting the upper and lower positions of the guide block 30 and the spectacle frame 10, when the locking member 40 moves upward in the pocket 18 as shown in FIG. 8, the locking member 40 protrudes forward and locks. As the pressing surface 43 of the member 40 presses the guide rail 20 toward the guide block 30, the first catching teeth 21 of the guide rails 20 become the second catching teeth of the guide block 30 ( 31) is firmly maintained in the engaged state, so that the guide block 30 can be fixed very firmly to one side of the guide rail (20).

In addition, the locking member 40 has a pair of elastic ribs 45 formed on both sides of the upper and left sides of the locking member 40, and is provided at the upper end of each of the elastic ribs 45. ) Is protruding. At this time, the elastic rib 45 is opened to both sides at the end provided with the inclined surface 42 of the locking member 40 as shown.

In addition, the pocket 18 has a locking groove 19 formed on an inner side surface thereof facing the locking protrusion 46, and the elastic rib 45 of the locking member 40 is moved as the locking member 40 moves upward. After being retracted elastically in the pocket 18, the engaging projection 46 of the elastic rib 45 is caught in the engaging groove 19 is coupled.

In this way, the guide rail by the locking member 40 as the locking projection 46 of the elastic rib 45 is caught in the locking groove 19 of the pocket 18 when the locking member 40 moves upward. 20) and the fixing of the guide block 30 has the advantage of maintaining a very stable.

The locking projection 46 is formed of a curved structure, and the locking projection 19a formed to be curved at the lower portion of the locking groove 19 is provided at one side of the pocket 18 facing the locking projection 46. An elastic locking action of the elastic ribs 45 may be more smoothly performed by the locking protrusion and the locking jaw of the jin structure. That is, the locking member 40 is fixed by being caught by the locking jaw 19a while the locking protrusion 46 is inserted into the locking groove 19.

The locking member 40 also protrudes from the rear face 48 of the locking member 40. That is, the locking member 40, the holding portion 48 is protruded to the outside of the eyeglass frame 10 or the guide block (30). The gripping portion 48 protrudes backward from the pocket 18 of the spectacle frame 10, and the gripping portion 48 can be gripped with a finger to facilitate the vertical movement of the locking member 40. Fixing and releasing the guide block 30 has the advantage of being more simple. That is, the locking member 40 easily moves inside the pocket 18 according to the operation of the gripping portion 48.

And the uneven part 48a is provided in the holding part 48, and operation of the locking member 40 can be made smoother.

According to the present invention as described above, by simply applying a simple position adjustment structure for coupling the guide block 30 that moves up and down along the guide rail 20 to the spectacle frame 10 to facilitate the vertical position adjustment of the spectacle frame 10 very easily. In addition, the manufacturing cost can be reduced, and in particular, the guide block is firmly fixed to one side of the guide rail by pressing the guide rail 20 and the guide block 30 by the locking member 40. The spectacle frame coupled to has the advantage of being able to remain very firm and stable in its adjusted position.

As mentioned above, specific embodiments of the present invention have been described, but the present invention is not limited to the embodiments disclosed in the present specification and the accompanying drawings, and may be variously modified by those skilled in the art without departing from the technical spirit of the present invention. .

Claims

A spectacle frame 10 provided with a pair of spectacle lenses 11;

A guide rail 20 installed vertically in the see-through window 2 of the gas mask 1;

A guide block 30 coupled to the spectacle frame 10 to move up and down together with the spectacle frame 10 and to move up and down along the guide rail 20 to adjust its up and down position;

A locking member 40 installed on the spectacle frame 10 to press the guide rail 20 and the guide block 30 to fix the guide block 30 to one side of the guide rail 20;

A guide passage 25 formed in the shape of a hole between the guide block 30 and the spectacle frame 10 and into which the guide rail 20 is inserted; And

And a pocket 18 formed between the guide block 30 and the spectacle frame 10 in a state of communicating with the guide passage 25 to allow the locking member 40 to be moved up and down. Dragon glasses.
The method of claim 1, wherein the locking member 40,

A body having an inclined surface 42 formed in an inclined state on one side facing the one surface of the pocket 18 and a pressing surface 43 formed on the other side of the inclined surface 42 facing the guide rail 20. Consisting of;

The pocket 18 is,

An inclined sheet 17 formed on one surface of the locking member 40 opposite the inclined surface 42, having an inclined surface corresponding to the inclined surface 42, and the inclined surface 42 sliding in close contact with the inclined surface 42; More,

The locking member 40,

Pressing the guide rail 20 and the guide block 30 through the pressing surface 43 while sliding the inclined surface 42 in close contact with the inclined sheet 17 in the pocket 18. To fix or release the guide block 30 at one side of the guide rail 20,

The locking member 40,

And a gripping portion 48 protruding and gripped to the outside of the eyeglass frame 10 or the guide block 30.

The locking member 40,

Gas mask glasses, characterized in that for moving within the pocket (18) in accordance with the operation of the gripping portion (48).
The method of claim 2, wherein the locking member 40,

A pair of elastic ribs 45 accommodated inside the pocket 18 and capable of elastic deformation in a state of being retracted as they are formed by being opened to both sides at an end of the body provided with the inclined surface 42; And

Further comprising; engaging protrusions 46 protruding from the ends of the elastic ribs 45,

The pocket 18 is,

Eyeglasses for gas masks further comprising; a locking projection (19a) is fixed to the locking projections 46 is fixed to the side facing the locking projections (46).
The method according to claim 1, wherein the eyeglass frame 10,

A plurality of coupling protrusions 15 protruding from one side of the guide block 30 and configured to be spaced apart from each other; And

Further comprising; fitting portion 14 protruding from the coupling protrusion 15,

The guide block 30,

A fitting holder 34 having a hole shape in which the fitting portion 14 is fitted; And

And a side wall (33) formed to have a length corresponding to the protruding length of the coupling protrusion (15) to space the fitting holder (34) from the surface of the spectacle frame (10).
The method according to claim 1,

A first catching tooth type 21 formed in a sawtooth shape along a longitudinal direction of the guide rail 20 on one surface of the guide rail 20 facing the guide block 30; And

The guide block 30 is formed on one surface of the guide block 30 opposite to the first catching tooth 21 to be interlocked with the first catching tooth 21 to guide the guide block 30 to the guide rail 20. The second catching teeth 31 to restrain the locked state; Glasses for gas masks further comprising.