KR20170082106A - Visibility range controller for improving concentration - Google Patents

Abstract

A field-of-view adjuster is disclosed. A field-of-view adjuster according to an embodiment of the present invention includes a body fixed to a head of a wearer; A blocking pad located on a front surface of the main body and blocking the user's view; And a fixed frame connected to the main body and fixing the blocking pad.

Description

[0001] VISIBILITY RANGE CONTROLLER FOR IMPROVING CONCENTRATION [0002]

Field of the Invention [0002] The present invention relates to a field-of-view adjuster for improving focus, and more particularly, to a mechanism for adjusting a field-of-view range that maximizes efficiency according to a surrounding environment during learning and operation.

When a person looks at an object, what is in the direction of the eye is clearly visible, and what is nearby is not perfect, but the presence or movement of things can be seen. In this case, the former is called the central visual field, and the latter is called the peripheral visual field. In particular, the fixed visual field of the human being is about 50 degrees upward, 70 degrees downward, 70 degrees inside, 60 degrees inside, and 100 degrees outside, even though the center vision and the adjacent vision range are only required in the case of learning and high- Depending on the environment, if there is an obstruction in the unnecessary peripheral vision, or if it moves, it becomes difficult to concentrate.

On the other hand, in the constitution, all citizens have the right to receive education equally according to their abilities, and these rights are guaranteed as basic rights of the people, but the number of people per one national public library in Korea is very high compared with other advanced countries. The library is a very scarce reality, and its regional orientation is also serious. Some students use a private reading room or a public library with a partition as a learning place so as not to be disturbed by the surrounding visual field during learning, but many students still do not have a good educational environment because their economic or geographical conditions are not satisfied .

If there is an apparatus that can selectively control the viewing range, the same learning and working environment can be realized anytime and anywhere. Even if a private reading room or a public library with a partition is not available, Social costs will be minimized.

As disclosed in Korean Patent No. 10-1437464, there is disclosed a peripheral visual field shield for improving concentration. As shown in FIG. 1A, an upper shield 1 and an upper shield Side shielding portion 2, and the wrinkle portion 3 so as to block the peripheral visual field. However, the above-mentioned peripheral visual field shield is only available to the wearer of the spectacles. Moreover, the above-described peripheral visual field shield is focused on merely detaching the visual field by simply attaching to and detaching the spectacles, and thus has a problem in effectively controlling the visual field range according to various environments.

As shown in FIG. 1B, the " eyeshadow for focus concentration " disclosed in Korean Registered Utility Model No. 20-0277157 has an opaque shielding plate having a predetermined angle to cover the face portion of users But there is also a lack of effective control of the field of view.

It is an object of the present invention to provide a view range controller for enhancing concentration ability that not only blocks upper and side views but also selectively adjusts the viewing range according to a user's preference or surrounding environment so as to efficiently perform learning and work.

A field-of-view adjuster according to an embodiment of the present invention includes a body fixed to a head of a wearer; A blocking pad located on a front surface of the main body and blocking the user's view; And a fixed frame connected to the main body and fixing the blocking pad.

Preferably, the at least one side blocking portion is coupled to at least one of the main body or the fixed frame and the left side or the right side, respectively, to block the left or right side view of the user.

Preferably, the side blocking portion includes a front portion that blocks a field of view of a user's front side, and a side portion that blocks a field of view of a user's side.

Preferably, the body or the stationary frame includes a width-controlling induction pipe in the form of a pipe through which the body or the stationary frame passes; And a width adjusting bar which is inserted into the width adjusting guide tube and can move left and right, and the side blocking portion is engaged with the main body or the fixing frame by engaging with the width adjusting bar.

Preferably, the side blocking portion is rotatable at a coupling portion of the width control bar, and is rotatable to be horizontal with the ground to engage with the main body.

Preferably, the main body and the stationary frame are coupled to each other by a hinge, and the stationary frame can be positioned at the lower end of the main body by the rotation of the hinge.

Preferably, the blocking pad includes magnets at both ends in the longitudinal direction, and the fixed frame is made of metal, and the blocking pad and the fixed frame are coupled to the blocking pad using the magnetic force of the magnet.

Preferably, the blocking pad is formed by sequentially connecting a plurality of blocking plates, and a portion where one blocking plate and another blocking plate are connected may be folded.

Preferably, the barrier pad is made of fiber, paper or a flexible material, and is capable of winding and storing the barrier pad; And a rotation unit coupled to one end of the roller and capable of manually rotating the roller.

Preferably, the blocking pad comprises: a shaft passing through the blocking pad at one end of the blocking pad to connect the blocking pad to the fixing frame; And at least one spring positioned at one end of the shaft and pushing the blocking pad using an elastic force.

Preferably, the main body comprises: a headband for fixing the main body to the user's head; And a cushioning member located between the body and the head of the user and contacting the head of the user.

Preferably, the buffer member is formed of silicon.

The field-of-view range adjuster for improving the concentration of the subject matter according to the present invention is capable of selectively adjusting the upper, left and right field-of-view ranges according to the user's preference or surrounding environment. Therefore, it is possible to achieve maximum learning and work efficiency without being disturbed by unnecessary peripheral vision.

FIGS. 1A and 1B are views for explaining a conventional visual field shielding mechanism.
2 is a perspective view illustrating a view range adjuster according to an exemplary embodiment of the present invention.
3A and 3B are views for explaining a main body according to an embodiment of the present invention.
FIG. 4A is a view for explaining an embodiment in which a blocking pad according to another embodiment of the present invention is attached to a field-of-view adjuster, FIG. 4B illustrates an embodiment in which a blocking pad according to another embodiment of the present invention is folded Fig.
5A to 5C are perspective views illustrating a view range adjuster according to another embodiment of the present invention.
FIGS. 6A and 6B are views for explaining a coupling with the main body of the side shield according to another embodiment of the present invention.
FIGS. 7A and 7B are views for explaining the detailed structure of the lateral blocking portion and the width adjusting bar.
8A and 8B are partial sectional views for explaining the operation principle of the side blocking part coupling plate and the adjusting bar rotating part according to the embodiment of the present invention.
9A and 9B are views showing a combination of a width adjusting bar and a width adjusting induction pipe according to an embodiment of the present invention.
10A and 10B are views for explaining a view range adjuster according to another embodiment of the present invention.
11A and 11B are views for explaining an embodiment in which a blocking pad according to another embodiment of the present invention is attached to the field-of-view adjuster.
12 is a view illustrating an embodiment in which a blocking pad according to another embodiment of the present invention is attached to a field-of-view adjuster.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the particular embodiments, It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the scope. It should also be understood that various equivalents and modifications may be substituted for those at the time of the present application.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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

2 is a perspective view illustrating a view range adjuster according to an exemplary embodiment of the present invention.

The field-of-view adjuster 100 according to an embodiment of the present invention includes a main body 110, a fixed frame 120, and a blocking pad 130.

The body 110 is secured to the wearer's head.

The main body 110 is fixed to the wearer's head and functions to fix the fixing frame 120 and the blocking pad 130. [

A main body 110 according to another embodiment of the present invention will be described later with reference to Figs. 3A and 3B.

The fixed frame 120 is connected to the main body 110 and fixes the stop pad 130.

The blocking pad 130 is located on the front surface of the main body, and blocks the user's view.

The blocking pad 130 is located in front of the user, that is, in the forward viewing direction, and functions to block the user's view.

Although the blocking pad 130 according to an embodiment of the present invention is integrally formed, the blocking pad 130 according to another exemplary embodiment of the present invention may be configured such that a plurality of blocking plates are sequentially connected, have. The blocking pad 130 according to another embodiment of the present invention will be described later in more detail with reference to FIGS. 4A and 4B.

The fixing frame 120 and the blocking pad 130 may be made of various materials such as synthetic fiber, metal, wood, silicone, etc., but it is preferable that a material capable of blocking light is used and a light material is used.

3A and 3B are views for explaining a main body according to an embodiment of the present invention.

Referring to FIGS. 3A and 3B, a body 110 according to another embodiment of the present invention includes a headband portion 112 and a buffer member 114.

The headband part 112 serves to fix the main body 110 to the head, and it is preferable to use fibers, rubber, or elastic material.

The cushioning member 114 may be formed of a silicone material that is positioned between the head of the user and the main body 110 to contact the user's head to increase the fit between the user and the user and to alleviate the burden on the skin.

The buffer member 114 can be inserted and fixed in the insertion groove 116, which can be inserted into the body 110.

FIG. 4A is a view for explaining an embodiment in which a blocking pad according to another embodiment of the present invention is attached to a field-of-view adjuster, FIG. 4B illustrates an embodiment in which a blocking pad according to another embodiment of the present invention is folded Fig.

4A and 4B, the blocking pad 130 according to another embodiment of the present invention includes a plurality of blocking plates 130a to 130d sequentially connected to each other, and one blocking plate and another blocking plate are coupled to each other Folding type.

Here, one embodiment of connecting the shield plate to the shield plate may include a plurality of shield plates in the inside, and the shield plate may be sequentially arranged in a bag made of a material such as cloth, natural fiber, or synthetic fiber, Can be inserted and connected.

If the user wishes to reduce the range of vision to be blocked, the blocking pad 130 may be folded and attached to the fixed frame 120 as shown in FIG. 4B.

Another embodiment of connecting the shielding plate and the shielding plate may be sequentially connected using a plurality of shielding plates having a magnetic force so that the shielding plate and the shielding plate can be coupled to each other using a magnetic force.

In this case, it is possible to reduce the visibility to be blocked by removing the blocking plate.

5A to 5C are perspective views illustrating a view range adjuster according to another embodiment of the present invention.

FIG. 5A shows a perspective view of a field-of-view adjuster 100 according to another embodiment of the present invention, and FIG. 5B shows an exploded perspective view of a field-of-view adjuster 100 according to another embodiment of the present invention.

5A and 5B, a field-of-view adjuster 100 according to another embodiment of the present invention includes a main body 110, a fixed frame 120, a blocking pad 130, and side blocking portions 140a and 140b .

The main body 110, the fixed frame 120, and the cut-off pad 130 have been described with reference to FIG. 2. Here, only the side cut-off portions 140a and 140b will be described.

The side shields 140a and 140b are respectively coupled to at least one of the main body 110 and the fixed frame 120 on the left and right sides to block the right and left visual fields of the user.

The side shields 140a and 140b are preferably coupled to the left and right sides, respectively.

The side shields 140a and 140b may be coupled to the main body 110 or the fixed frame 120 by using the width adjusting induction pipe 142 and the width adjusting bars 144a and 144b.

More specifically, the main body 110 or the fixed frame 120 includes a width-adjusting guide pipe 142 in the form of a pipe through which the inside of the main body 110 or the fixing frame 120 is inserted, width control bars 144a and 144b, . ≪ / RTI >

The width control bars 144a and 144b may have a rack shape.

Specifically, the lateral blocking portions 140a and 140b may be coupled to one end of the width control bars 144a and 144b, and a portion of the other ends may be introduced into the width control induction pipe 142. [

5A and 5B, the width adjusting bars 144a and 144b are positioned between the main body 110 and the fixed frame 120. However, in another embodiment, the width adjusting guide pipe 142 is disposed between the main body 110 Or fixed frame 120, but may be a separate component.

5C shows a structure of a left side blocking portion 140a of the side blocking portions 140a and 140b according to another embodiment of the present invention.

The side shield 140a according to another embodiment of the present invention includes a front portion 140a-f for blocking the field of view of the user and a side portion 140a-s for blocking the field of view of the user, Lt; / RTI >

The side blocking portion 140a is, in principle, sufficient to block the view of the side surface with only the side portions 140a-s. However, in the case where only the side portions 140a-s are present, a gap may be formed at a position where the side blocking portion 140a and the fixed frame 120 meet.

The side shield 140a may be formed by joining the side face 140a-s and the front face 140a-f in order to prevent the occurrence of a gap and completely block the visual field.

Here, the right side cut-off portion 140b may be formed by coupling the side portion 140b-s and the front portion 140b-f.

Referring to FIGS. 5A and 5B again, the side blocking portions 140a and 140b are disposed on the side of the width adjusting guide 142 and the width adjusting bars 144a and 144b, respectively, on the basis of the side blocking portion according to another embodiment of the present invention. It is possible to secure the widest side view range in the state of being drawn out to the maximum extent, and it is possible to prevent a gap from being formed by joining the front portions 140a-f to the side portions 140a-s. The front part 140a-f can move inward while the width adjusting bar 144a is inserted into the width adjusting guide pipe 142 and is in close contact with the rear surface of the upper fixing frame 120. [

FIGS. 6A and 6B are views for explaining a coupling with the main body of the side shield according to another embodiment of the present invention.

6A and 6B, the side shields 140a and 140b are rotated to be horizontal with respect to the ground, and can be coupled to the main body 110. FIG. More specifically, the side shields 140a and 140b are rotatable at the joints with the width control bars 144a and 144b, and can be rotated to be horizontal with the ground to engage with the main body.

It is also possible that the side blocking portions 140a and 140b are separated by the user to see the side view again. However, since the side blocking portions 140a and 140b may be lost when separated, it is preferable to fix the side blocking portions 140a and 140b as shown in FIG.

As described above, since the side shields 140a and 140b and the width adjusting bars 144a and 144b are combined as shown in FIG. 6, the side shields 140a and 140b can be rotated and coupled as shown in FIG. 6b.

The specific structure of the width adjusting guide tube 142 and the width adjusting bars 144a and 144b that allow the side blocking portions 140a and 140b to be horizontally rotated will be described with reference to FIGS. 7A to 9B.

FIGS. 7A and 7B are views for explaining the detailed structure of the lateral blocking portion and the width adjusting bar.

 FIGS. 7A and 7B are views showing a combined structure of the lateral blocking portion 140a and the width adjusting bar 144a according to an embodiment of the present invention. Referring to FIG. 8A, a side blocking portion 140a-1 is formed on the side blocking portion 140a so as to engage with the adjusting bar rotating portion 144a-1 of the width adjusting bar 144a. The adjusting bar rotating part 144a-1 is made of a material having elasticity so that the circular protruding part 140a-2 and the fixing protrusion 140a-3 of the side blocking part binding plate 140a-1 are aligned with the adjusting bar rotating part 144a- A spacing may be generated such that it can be coupled inward.

Referring to FIG. 7B, the circular protrusion 140a-2 of the side blocking part 140a-1 further protrudes outward than the fixing protrusion 140a-3. The adjusting bar rotating part 144a-1 has a through hole 144a-2 in the vicinity of the center thereof and is opened in parallel with a predetermined gap so as to be engageable with the side blocking part coupling plate 140a-1. Shaped rotary part fixing grooves 144a-6 are formed at predetermined depths on inner side surfaces of the adjustment bar rotation part 144a-1 facing each other, and the rotary part fixing wall 144a-4 has a rectangular shape Respectively.

8A and 8B are partial sectional views for explaining the operation principle of the side blocking part coupling plate and the adjusting bar rotating part according to the embodiment of the present invention.

The circular protrusion 140a-2 and the fixing protrusion 140a-3 of the side interrupter coupling plate 140a-1 are coupled to the inside of the adjustment bar rotation unit 144a-1, 2 of the adjusting bar rotating portion 144a-1 is inserted into the through hole 144a-2 of the adjusting bar rotating portion 144a-1 and the circular protruding portion 140a-2 of the side breaking portion binding plate 140a-1 is inserted into the through hole 144a- If the fixing projection 140a-3 of the side blocking part 140a-1 is correctly fitted to the rotation part fixing groove 144a-6, the separation occurring in the coupling process is eliminated.

8A, the fixing protrusion 140a-3 of the side blocking part 140a-1 is aligned perpendicularly to the cross-shaped rotation part fixing groove 144a-6 of the adjustment bar rotation part 144a-1, The side blocking portion 140a can be positioned and fixed at right angles to the width adjusting bar 144a.

8B, when the width adjusting bar 144a is drawn out from the width adjusting induction pipe 142, the side blocking portion 140a may be rotated 90 degrees outward to be lifted. The rotary fixing grooves 144a-6 and the fixing protrusions 140a-3 that are fixedly coupled with each other on the vertical line do not coincide with each other while rotating, but the protrusions 140a-3 protrude more outward than the fixing protrusions 140a-3 The engagement of the side blocking portion 140a and the width adjusting bar 144a can be maintained while the circular protrusion 140a-2 having the protrusion 140a-2 is still inserted into the through hole 144a-2. When the side blocking portion 140a is rotated 90 degrees to the outside, the fixing protrusion 140a-3 is horizontally aligned with the rotation portion fixing groove 144a-6, 140a can be fixed in an open state.

As shown in FIG. 7B, the side blocking part 140a rotates 90 degrees outwardly. The side blocking part 140a protrudes in a rectangular shape at one side lower end of the inside of the control bar rotating part 144a-1 facing each other, The rotating portion fixing wall 144a-4 can be formed to prevent rotation beyond the rotation range.

9A and 9B are views showing a combination of a width adjusting bar and a width adjusting induction pipe according to an embodiment of the present invention.

9A, a protrusion array 144a-3 arranged at a lower portion of the width adjusting bar 144a to arrange a plurality of grooves to form a valley and a width adjusting bar 144a-3 inserted in the width adjusting guide tube 142 144a-5 that can prevent the width-adjusting bar 144a from being easily separated from the width-adjusting guide pipe 142 when the length-adjusting bar 144a is extended to the maximum length.

9B, the width adjusting bar 144a is inserted into the inside of the width adjusting guide tube 142 so that the adjusting bar rotating portion 144a-1 can be inserted until it is completely in contact with one end of the width adjusting guide pipe 142 . The width adjusting bar 144a inserted into the width adjusting guide tube 142 can be linearly reciprocated along the adjusting bar guide hole 142-2 under the width adjusting guide tube 142. At this time, 142 may be inserted between the grooves formed in the projection arrangement 144a-3. That is, the width of the locking protrusion 142-1 provided on the inner lower surface of the width adjusting guide tube 142 can be adjusted while moving between the grooves of the protrusion arranging portion 144a-3 under the width adjusting bar 144a.

As described above, the pair of width adjusting bars 144a are symmetrical with respect to the width adjusting guide tube 142. The pair of width adjusting bars 144a are inserted into the width adjusting guide 142, Can be adjusted.

10A and 10B are views for explaining a view range adjuster according to another embodiment of the present invention.

10A and 10B, the field-of-view adjuster according to another embodiment of the present invention includes a body 110 and a fixed frame 120 coupled to each other by a hinge 122 and fixed by rotation of the hinge 122. [ The frame 120 may be positioned at the lower end of the main body 110.

10A and 10B show an embodiment in which the fixed frame 120 is connected to the width control induction pipe 142 by a hinge 122. The body 110 is connected to the width control induction pipe 142 by a hinge Or the body 110 and the width-adjusting guide pipe 142 are connected by a hinge.

11A and 11B are views for explaining an embodiment in which a blocking pad according to another embodiment of the present invention is attached to the field-of-view adjuster.

11A and 11B, the blocking pad 130 is inserted into the fixing hole 132 of the fixing frame 120 through the blocking pad 130 at one end of the blocking pad 130, And at least one spring 134 that is located at one end of the shaft 138 and pushes the stop pad 130 using an elastic force.

Here, the spring 134 is formed to maintain a certain angle, so that the blocking pad 130 can be kept open at a certain angle.

Further, the springs 134 may be provided at both ends of the shaft 138, respectively, and only one of them may be provided.

And a fixing portion 136 for fixing the blocking pad 130 to the fixed frame 120. [ When the blocking pad 130 is attached to the fixed frame 120, the blocking pad 130 is coupled to the fixing frame 120 so that the blocking pad 130 is not detached due to the elastic force of the spring 134. [ And inserted into the fixing hole 135, which is a hole formed in a portion where the blocking pad 130 is formed.

12 is a view illustrating an embodiment in which a blocking pad according to another embodiment of the present invention is attached to a field-of-view adjuster.

12, the blocking pad 130 may further include a roller 126 and a rotation unit 124 according to another embodiment of the present invention.

The barrier pad 130 may be made of fiber, paper, or a flexible material.

The roller 126 can be wound around the cut-off pad 130 and a thickness sufficient to wind the cut-off pad 130 is sufficient.

The rotation unit 124 may be connected to one end of the roller 126 to rotate the roller 126. The rotation unit 124 may be manually rotated or automatically rotated when the transmission unit or the elastic unit is connected.

As described above, the field-of-view adjuster for improving the focusing ability of the present invention is not limited to completely blocking the upper and side view fields. Further, since the field of view can be selectively and variously adjusted, Efficiency can be achieved. In other words, the upper and side viewing ranges can be selectively symmetrically or asymmetrically adjusted according to the user's preference or surrounding environment, so that the same learning and working environment can be realized without being disturbed by unnecessary peripheral vision anytime and anywhere. It is effective to achieve efficiency.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

100: Field of view range adjuster 110:
112: headband portion 114: buffer member
120: fixed frame 122: hinge
124: rotation part 126: roller
130: Blocking pad 130a to 130d:
132: Fixing hole 134: Spring
138: shafts 140a and 140b:
140a-f: Front part 140a-s: Side part
142: width control guide pipes 144a and 144b: width control bar

Claims (12)

A body fixed to the wearer's head;
A blocking pad located on a front surface of the main body and blocking the user's view; And
And a fixing frame connected to the main body and fixing the blocking pad.
The method according to claim 1,
Further comprising at least one side blocking portion coupled to at least one of the main body or the fixed frame and the left side or the right side of the at least one side blocking portion to block a left or right side view of the user.
3. The method of claim 2,
The side shield
A front surface portion for blocking a field of view of a front surface of a user and a side surface portion for blocking a visual field of a side surface of the user are coupled at right angles to each other.
3. The method of claim 2,
The body or the fixed frame
A pipe-shaped width-controlling induction pipe through which the inside is passed; And a width adjusting bar which is inserted into the width adjusting guide tube and can move left and right,
The side shield
And a viewing range controller coupled with the body or the stationary frame by engaging the width control bar.
5. The method of claim 4,
The side shield
Wherein the width adjuster is rotatable at a coupling portion of the width adjuster bar, and is rotatable to be horizontal with respect to the ground to engage with the body.
The method according to claim 1,
Wherein the main body and the fixed frame are hinged,
And the fixed frame can be positioned at the lower end of the main body by rotation of the hinge.
The method according to claim 1,
Wherein the barrier pad comprises magnets at both ends in the longitudinal direction,
The fixed frame is made of metal,
The blocking pad and the fixed frame
And a magnetic field of the magnet is used to engage with the blocking pad.
The method according to claim 1,
The blocking pad
Wherein a plurality of blocking plates are sequentially connected to each other, and a portion where one blocking plate and another blocking plate are connected is collapsible.
The method according to claim 1,
The blocking pad is made of fiber, paper or a flexible material,
A roller capable of winding and storing the blocking pad; And
And a rotation unit coupled to one end of the roller and capable of manually rotating the roller.
The method according to claim 1,
The blocking pad
A shaft passing through the blocking pad at one end of the blocking pad to connect the blocking pad to the fixing frame; And
And at least one spring positioned at one end of the shaft and pushing the blocking pad using an elastic force.
The method according to claim 1,
The body
A headband for fixing the main body to the user's head; And
And a cushioning member located between the body and the head of the user and contacting the head of the user.
12. The method of claim 11,
Wherein the buffer member is formed of silicon.

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