JP6744186B2 - Protective glasses - Google Patents

Description

TECHNICAL FIELD The present invention relates to eyeglasses for protecting the eyes by absorbing and mitigating impacts caused by flying objects such as balls, people, and object collisions.

Conventionally, various ball games have been performed, but particularly in ball games such as squash, handball, and tennis, the balls used hit the eyes and injure the eyes more frequently than other ball games. Further, in winter sports such as skiing and skating, skiers may collide with each other or may collide with obstacles such as standing trees and fences, resulting in eye injury.

Therefore, as eyeglasses that protect the eyes from such ball games and winter sports, as shown in FIGS. 10 and 11, the left and right rims 12 provided with the lens 11, the bridge 13 and the both rims 12 connecting the both rims 12 are provided. A main body 15 integrally formed with a temple 14 extending rearward from an outer end of the main body, an elastic band 16 having elasticity, and a connecting member 17 connecting a rear end of each temple 14 of the main body 15 and both ends of the band 16. And a nose pad 18 and a cushion pad 19 exist (Patent Document 1).

The sports spectacles are said to have a good fit to the wearer's head and face, and are capable of reliably and sufficiently absorbing and mitigating impacts and the like to prevent injury.

JP-A-6-160780

In the sports spectacles described in Patent Document 1, the nose pad 18 is composed of the forehead pad material 18a and the nose pad material 18b, but the forehead pad material 18a is only a part of the wearer's forehead. Since they are not in contact with each other, there is a problem that impact absorption and relaxation are still insufficient.

Further, in the above sports eyeglasses, since the forehead pad material 18a is in contact with only a part of the wearer's forehead, the forehead sweat pad material may prevent sweat on the forehead during playing ball games or winter sports. There was a problem in that it fell from the non-contacted forehead of 18a and got into the eyes, which hindered sports.

Further, in the above sports eyeglasses, since the rim 12 and the temple 14 are made of a hard material, there is a problem that the bending width is small and it may not be possible to cope with the difference in the face width of the wearer. Was.

Therefore, the present invention can more effectively absorb and mitigate impacts caused by flying objects such as balls, humans, and object collisions, more completely protecting the eyes, and suppressing deformation (twisting) at the time of collision, The purpose of the present invention is to provide protective glasses capable of preventing the wearer's face from being displaced.

Further, the present invention is easy to deal with the difference in the size of the face width of the wearer, and prevents sweat from running off the forehead during sports or the like, and rainwater etc. that runs off the forehead when worn in the rain or the like from entering the eyes. Moreover, the purpose of the present invention is to provide protective eyeglasses that can improve the air permeability and reduce the fogging of the lens.

The protective spectacles of the present invention are made by integrating a hard front frame 1 and a soft rear frame 2 so that the periphery of the rear frame 2 is in close contact with the wearer's face. The elastic deformation portion 5 is extended from both ends of the front frame 1, and the elastic deformation portion 5 is separated into a front deformation portion 9 and a rear deformation portion 10 through vertical holes Ha, and the rear deformation portion 10 is further separated. Is separated into an upper rod portion 10a and a lower rod portion 10b through a horizontal hole Hb.

In the protective spectacles of the present invention, the front frame 1 is provided with the lens 3, the rear frame 2 is provided with the headband 4, and the headband mounting portion 6 is provided at the front end of the elastically deforming portion 5 so as to project therefrom. In addition, the temple contact portion 7 is extended at the rear end of the elastically deformable portion 5.

In the protective glasses of the present invention, the Shore hardness of the front frame 1 is 90 or more, and the Shore hardness of the rear frame 2 is 30 to 60.

In the protective spectacles of the present invention, ventilation holes V communicating with the inside of the lens 3 are provided in the upper side portion 1a and the lower side portion 1b of the front frame 1, and the vertical hole Ha and the horizontal hole Hb of the elastic deformation portion 5 are inside the lens 3. I try to reach people.

In the protective glasses of the present invention, a water reservoir 8 is formed at the center of the upper side portion 2a of the rear frame 2, and a drain hole D communicating with the outside of the lens 3 is formed at the bottom of the water reservoir 8. There is.

In the protective spectacles of the present invention, the area ratio of the vertical cross section A of the front deformation section 9 to the vertical cross section B of the rear deformation section 10 is set to 1:4 to 5, and the vertical cross section Bu of the upper rod section 10a and the lower rod section 10b of the lower rod section 10b are connected. The area ratio of the vertical cross section Bd is set to 1:0.8 to 1.2.

Since the protective glasses of the present invention are configured as described above, it is possible to more effectively absorb and mitigate impacts caused by flying objects such as balls, humans, and object collisions, and protect the eyes more completely. It will be possible.

Further, the protective glasses of the present invention can suppress deformation (twisting) at the time of collision and prevent displacement from the wearer's face.

In addition, the protective glasses of the present invention make it easier to cope with the difference in the size of the face width of the wearer, and sweat that falls from the forehead during sports and the like, and rainwater that runs off the forehead when worn in rainy weather etc. It is possible to prevent entering.

Moreover, the protective glasses of the present invention can improve the air permeability and reduce the fogging of the lenses.

It is a perspective view showing an embodiment of protective glasses of the present invention. It is a front view of the protective glasses of this invention shown in FIG. It is a top view of the protective glasses of this invention shown in FIG. It is a bottom view of the protective glasses of this invention shown in FIG. FIG. 3 is a cross-sectional view of the protective glasses of the present invention according to AA in FIG. 2. FIG. 4 is a sectional view of the protective glasses of the present invention according to BB in FIG. 3. FIG. 4 is a sectional view of the protective glasses of the present invention taken along the line C-C in FIG. 3. FIG. 4 is a sectional view of the protective glasses of the present invention taken along the line D-D in FIG. 3. FIG. 4 is a cross-sectional perspective view of the frame of the protective glasses of the present invention according to D-D in FIG. 3. It is a front view of the conventional sports glasses. FIG. 11 is a plan view of the conventional sports eyeglasses shown in FIG. 10.

Hereinafter, modes for carrying out the protective glasses of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 5, the protective glasses of the present invention are configured by integrating a hard front frame 1 and a soft rear frame 2, and the front frame 1 is provided with a lens 3. Therefore, the rear frame 2 is provided with a headband 4 so that the periphery of the rear frame 2 is in close contact with the wearer's face. In the illustrated example, the two are made as separate bodies, and are fitted and integrated, but they may be fused or adhered to be integrated. Alternatively, the hard synthetic resin and the soft synthetic resin may be integrally molded by double injection.

The front frame 1 is made of hard synthetic resin or the like, and surrounds the periphery of the lens 3 to hold the lens 3 in close contact. Vent holes V communicating with the inside of the lens 3 are provided in the upper side portion 1 a and the lower side portion 1 b of the front frame 1. In order to provide such a vent hole V, as shown in the figure, the front frame 1 at the portion where the vent hole V is provided is made thick to facilitate the provision of the vent hole V. In the present invention, the term “hard” means that it is relatively hard as compared with the softness of the rear frame 2, but it is preferable in terms of strength that the Shore hardness of the front frame 1 is 90 or more.

The rear frame 2 is made of a soft synthetic resin or the like, and its contact surface is shaped so as to be along the wearer's forehead, the vicinity of the eyes, the back of the nose, etc., so as to be easily attached to the wearer's face. .. Then, the rear frame 2 is extended from both ends of the front frame 1 to form an elastically deformable portion 5, a headband mounting portion 6 is projectingly provided at a front end of the elastically deformable portion 5, and a rear side end of the elastically deformable portion 5 is provided. It is assumed that the temple contact portion 7 is extended. Further, a water reservoir 8 is formed at the center of the upper side portion 2a of the rear frame 2, and a drain hole D communicating with the outside of the lens 3 is formed at the bottom of the water reservoir 8. In the present invention, "soft" means a Shore hardness of 60 or less. In the present invention, the Shore hardness of the rear frame 2 can be 30 to 60, but it is preferably 45 to 55. With such a shore hardness, the rear frame 2 becomes very easily attached to the wearer's face.

The lens 3 is made of hard glass or synthetic resin. Although the lens 3 shown is a twin-lens, it can be implemented as a single-lens. In the present invention, it is desirable that the lens 3 is provided, but the lens 3 can be implemented without being provided.

The headband 4 is made of an elastic member such as rubber or synthetic resin, and is attached to the headband attachment portions 6 at both ends of the rear frame 2 so that the length thereof can be adjusted, so that the headband 4 can be tightened or loosened. So that it fits around the wearer's head.

As shown in FIGS. 8 and 9, the elastic deformation portion 5 is separated into a front deformation portion 9 and a rear deformation portion 10 through a vertical hole Ha, and the front deformation portion 9 has a thick plate shape. The rear side deformable portion 10 is divided into an upper rod portion 10a and a lower rod portion 10b via a horizontal hole Hb. The vertical hole Ha and the horizontal hole Hb of the elastically deformable portion 5 are made to communicate with the inside of the lens 3. Further, as shown in FIG. 8, the area ratio of the vertical cross section A of the front deformation section 9 to the vertical cross section B of the rear deformation section 10 is set to 1:4 to 5, and the vertical cross section Bu of the upper rod portion 10a is equal to the vertical cross section Bu. The area ratio of the vertical cross section Bd of the lower rod portion 10b is set to 1:0.8 to 1.2. By setting such an area ratio, the deformation degree of the elastic deformation portion 5 in the front-back direction and the deformation degree in the up-down direction can be balanced, so that the deformation (twisting) of the protective glasses at the time of a collision can be more effectively suppressed. ..

The headband mounting portion 6 is made of a hard synthetic resin or the like, and has two vertically elongated slit holes 6a and 6b formed from the outside to the inside as shown in FIG. To attach the headband 4 to the headband attachment portion 6, one end of the headband 4 is passed from the back side of the inner vertical slit hole 6b to the front side, and the front side of the outer vertical slit hole 6a is turned to the back side. The headband 4 is projected through the one end of the headband 4 to the outside of the headband mounting portion 6. It should be noted that the headband attachment portion 6 is not particularly limited in its structure as long as the headband 4 is attached so that its length can be adjusted.

The temple contact portion 7 is made of the same soft synthetic resin as that of the rear frame 2 and is formed in a substantially toro shape, and a large number of ribs 7a are formed on the front side in the width direction to easily bend outward. In addition, the back side has a smooth surface so that it easily adheres to the wearer's temple.

Further, as shown in FIG. 5, the headband mounting portion 6 and the temple contact portion 7 both have inclination angles α and β with the front of the protective glasses of 90 to 100 degrees and both inclination angles α and β. The headband mounting portion 6 and the temple contact portion 7 are arranged substantially parallel to each other by making them substantially equal. In this case, the inclination angle α of the headband mounting portion 6 becomes smaller than this angle due to the tightening of the headband 4, so that a force acts in a direction in which the inclination angle β of the temple contact portion 7 also becomes smaller than this angle. , The temple contact portion 7 comes into closer contact with the wearer's temple.

When the protective eyeglasses of the present invention configured as described above are worn, the entire soft rear frame 2 comes into close contact with the wearer's face, so that flying objects such as a ball, interpersonal objects, and objectives can be used during ball games and winter sports. Even if a shock is received, the shock can be more effectively absorbed and mitigated, and the eyes can be more completely protected. The illustrated product has passed the high-speed impact test with a squash ball of ASTM F803-11 in the standard established by the American Society for Testing Materials. (ASTM International: American Society for Testing and Materials).

Further, in the protective glasses of the present invention, the elastic deformation portion 5 of the rear frame 2 is deformed in a well-balanced manner in the rearward direction and the vertical direction by the impact, so that the deformation (twisting) when the impact is applied is more effectively suppressed. Therefore, it is possible to prevent the displacement from the wearer's face.

When the protective glasses of the present invention are worn, the elastically deformable portion 5 of the rear frame 2 is deformed to the size of the wearer's face width and can be applied to the wearer's face width.

Further, in the protective glasses of the present invention, since the water reservoir 8 having the drainage hole D communicating with the outside of the lens 3 is formed at the center of the upper side portion 2a of the rear frame 2, during playing such as sports. Since sweat that runs down from the forehead and rainwater that runs off from the forehead when worn in the rain are collected in the water reservoir 8 and discharged from the drain hole D, it can be prevented from entering the eyes of the wearer.

Moreover, in the protective glasses of the present invention, the upper frame portion 1a and the lower frame portion 1b of the front frame 1 are provided with the vent holes V communicating with the inside of the lens 3, and the vertical hole Ha and the horizontal hole Hb of the elastically deformable portion 5 are formed in the lens 3 respectively. Since it is communicated inwardly, the air permeability is improved, and the fogging of the lens 3 can be reduced.

1 Front Frame 1a Upper Side 1b Lower Side 2 Rear Frame 2a Upper Side 3 Lens 4 Headband 5 Elastic Deformation Part 6 Headband Mounting Part 7 Temple Contact Part 8 Water Reservoir 9 Front Deformation Part 10 Rear Deformation Part 10a Upper Rod 10b Lower rod section A Vertical section B Vertical section Bu Vertical section Bd Vertical section D Drain hole Ha Vertical hole Hb Horizontal hole V Vent hole

Claims (6)

A hard front frame (1) and a soft rear frame (2) are integrated, and the periphery of the rear frame (2) is in close contact with the wearer's face, and the rear frame (2). To extend from both ends of the front frame (1) to form an elastically deformable portion (5), and the elastically deformable portion (5) has a front side deformable portion (9) and a rear side deformable portion (10) through a vertical hole (Ha). In addition, the rear side deformable portion (10) is characterized in that it is separated into an upper rod portion (10a) and a lower rod portion (10b) through a horizontal hole (Hb). Protective glasses. It is assumed that the front frame (1) is provided with a lens (3), the rear frame (2) is provided with a headband (4), and the headband mounting portion (at the front end of the elastically deformable portion (5) ( 6. The protective spectacles according to claim 1, wherein 6) is provided so as to project, and a temple contact portion is provided at a rear end of the elastically deformable portion. The spectacles according to claim 1 or 2, wherein the front frame (1) has a Shore hardness of 90 or more and the rear frame (2) has a Shore hardness of 30 to 60. The upper frame (1a) and the lower frame (1b) of the front frame (1) are provided with ventilation holes (V) that communicate with the inside of the lens (3), and the vertical deformation holes (Ha) and the horizontal holes of the elastically deformable part (5) and the horizontal direction are formed. 4. The protective glasses according to claim 2 or 3, characterized in that the hole (Hb) communicates with the inside of the lens (3). A water reservoir (8) is formed at the center of the upper side (2a) of the rear frame (2), and a drain hole (D) communicating with the outside of the lens (3) is formed at the bottom of the water reservoir (8). The protective glasses according to any one of claims 2 to 4, characterized in that The area ratio of the vertical cross section (A) of the front deformation section (9) to the vertical cross section (B) of the rear deformation section (10) is set to 1:4 to 5, and the vertical cross section (Bu) of the upper rod section (10a) is set. The protective glasses according to any one of claims 1 to 5, wherein the area ratio of the vertical cross section (Bd) of the lower rod portion (10b) is set to 1:0.8 to 1.2.

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