JP3458054B2 - Swimming goggles - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to swimming goggles.

[0002]

2. Description of the Related Art A general swimming goggle comprises a pair of left and right eyecups, a cushion portion provided on each eyecup, and a nose belt portion connecting the left and right eyecups to reduce fluid resistance and Various proposals have been made so far for improving the fit.

The actual Kaihei 6-48715 also focuses on the reduction of running water resistance and forms a peripheral groove recessed from the outer surface toward the inner side of the peripheral wall portion on the rear end side of the peripheral wall portion of the eyecup. However, the wall portion forming the rear surface of the peripheral groove is a mounting wall for mounting the cushion portion, and the mounting wall does not significantly project from the outer surface of the peripheral wall of the eyecup. Therefore, the cushion portion mounted on the mounting wall is also mounted from the outer surface. It does not project so much, and the resistance of water can be reduced. However, some of the products in which the present invention is implemented have some gaps or steps at the transition between the eye cup peripheral wall portion and the cushion portion, in which case the running water resistance value may increase.

On the other hand, as what is focused on the improvement of the fitting property, it can be seen that all the peripheral wall portions other than the lens portion are made of an elastomer which is a flexible opaque material.
It has a good fit to the edge of the eye and has a relatively small running water resistance value. However, due to the characteristics of the elastomer material, there is a problem that the transparency is not good and the visibility in the vertical and horizontal directions is poor.

[0005] In addition, there is an actual Kaihei 5-35120 which has improved fitability while ensuring the visibility.
This is an embodiment in which the rear end surface of the peripheral wall portion of the eyecup is a plane substantially parallel to the lens surface, and as a result, the length in the front-rear direction of the cushion portion becomes longer as it goes outward in the left-right direction, and the fit is improved. The visibility is ensured as much as the eyecup peripheral wall is made of a transparent material, but the outer peripheral wall in the left-right direction is filled with a cushion material and the field of view is limited as far as that part is concerned. Cannot be denied.

[0006]

As swimming goggles for swimming athletes, of course, reduction of running water resistance and improvement of fit are also desired, but it is also necessary to secure a wide field of view. It is necessary to cover and keep the trend of the swimming partner in view. However, the above-mentioned conventional techniques do not always satisfy these three problems. Therefore, it is an object of the present invention to provide a swimming goggle capable of ensuring a wide field of view in addition to reducing running water resistance and improving fitability.

[0007]

According to a first aspect of the present invention, a pair of left and right eye cups 1 having a lens portion 5 and a lens peripheral wall portion 6 extending obliquely rearward from the lens portion peripheral edge, each eye cup 1 are provided. A nose belt 2 for connecting the left and right eyecups 1 to the cushion portion 3 provided on the inner surface of the lens peripheral wall portion 6 adjacent to the lens portion 5 along the horizontal diameter of the lens surface 12 Lens surface 12 from edge 10
Is parallel to the lens surface 12 in the range of at least two-thirds of the horizontal diameter of and is 1 mm from the lens surface 12.
The boundary surface 9 and the lens surface 12 at a distance of not less than 3 mm and not more than 3 mm
The region between and is the front peripheral wall portion 7, and the boundary surface 9 is
There is a curved surface portion 15 that curves outwardly from the parallel portion 13 and extends and ends at an outer end portion 17 of the eyecup, and a side portion 14 is provided within the range of the curved surface.
Has a region of 15 mm or more in the vertical direction A at the lens surface outer end 11 and 12 mm or more in the vertical direction B 6 mm outside from the lens surface outer end 11 along the eyecup surface. Part 14
Is the same hard transparent material as the lens part 5
Integrally molded with the front peripheral wall portion 7 and the side portion 1
4 is connected to the rear peripheral wall portion 8 and the cushion portion 3, and the front peripheral wall portion 7, the side portion 14 and the rear peripheral wall portion 8 are connected and united at the boundary surface 9, and the outer surface of each of them is connected to the cushion portion 3. The cushion portion 3 with respect to the lens surface 12 in a cross section on the vertical surface 16 that is flush with the connection portion with the lens surface 12 and that includes the center point of the lens surface 12 and is orthogonal to the lens surface 12. Contact with
This is swimming goggles in which the inclination angle C of the outer surface of the lens peripheral wall portion 6 which has been connected and united to the connecting portion and is flush with the surface is smaller than 65 °.

A second aspect of the present invention is the swimming goggles according to the first aspect, wherein the rear peripheral wall portion 8 is made of the same material as the cushion portion 3 and is integrally formed with the cushion portion 3.

According to a third aspect of the present invention, in the swimming goggles according to the first aspect, the front peripheral wall portion 7 and the side portion 14 which are preliminarily integrally formed and are made of the same hard transparent member as the lens portion are made of gold. Insert it in the mold,
The swimming goggles have a lens part 5, a lens peripheral wall part 6 and a cushion part 3 integrally formed by injecting a cushion part material into a mold cavity.

[0010]

In the present invention, first, of the lens peripheral wall portion 6, adjacent to the lens portion 5, along the horizontal diameter of the lens surface 12, at least from the inner end 10 of the lens surface to the horizontal diameter of the lens surface 12. It is parallel to the lens surface 12 in the range of ⅔ and is 1 mm from the lens surface 12 and the lens surface 12.
The boundary surface 9 and the lens surface 12 at a distance of not less than 3 mm and not more than 3 mm
A region between and is a front peripheral wall portion 7, and the front peripheral wall portion 7 is made of the same hard transparent material as the lens. If the distance is set to 1 mm or more, the visibility in the vertical direction is insufficient if it is less than 1 mm, and when the rear peripheral wall portion 8 is connected to the front peripheral wall portion 7, the inner surface (rear surface) of the lens portion is processed. Because it is too close to the anti-fogging film
This is because the film may be adversely affected. on the other hand,
The above-mentioned distance is set to 3 mm or less because if it exceeds 3 mm, the portion occupied by the flexible material such as the material of the cushion portion 3 connected thereto becomes small and the fit property may be reduced.

Next, the boundary surface 9 has the parallel portion 13
Has a curved surface portion 15 that curves outwardly and extends and ends at the outer end portion 17 of the eyecup, and a side portion 14 is provided within the range of the curved surface. There is a region of 15 mm or more in the vertical direction A, and 12 mm or more in the vertical direction B on the outer side of the lens portion 11 along the eyecup surface by 6 mm outside.
The side portion 14 is made of the same hard transparent material as the lens portion 5. Thus, in the portion near the outer edge of the eyecup, the side portion 14 has the parallel portion 13
Since it is defined within the range of the curved surface that extends outwardly by bending and ends at the outer end portion 17 of the eyecup and does not extend beyond this range, the cushion that is inevitably connected to this side portion 14 The portion occupied by the flexible material such as the material of the part 3 can be increased, and the fit can be improved.

Further, the effective visual field in the side portion 14 is
At the boundary between the lens surface outer end 11 and the side portion 14, 15 mm or more in the vertical direction A, and 12 mm or more in the vertical direction B 6 mm outside from the boundary along the surface of the eyecup, so that it is for competition. A wide field of view suitable as is obtained. When the effective visual field in the side portion 14 is narrower than these numerical values, it becomes difficult to grasp the side scene while directly facing the front during a swimming race. It should be noted that the visual field passing through the lens peripheral wall portion 6 is only required to be able to grasp an approximate image and does not require the sharpness as much as the visual field passing through the lens portion 5, so that some distortion is allowed.

The front peripheral wall portion 7, the side portion 14 and the rear peripheral wall portion 8 are connected and united at a boundary surface 9,
The outer surface of each reaches the connection with the cushion 3.
In By it is set to be flush, reducing the water flow resistance. If they are not flush with each other and a step or a gap between each part is left, the water flow does not flow smoothly in that part and the resistance value is increased. In the present invention, the cushion portion 3 with respect to the lens surface 12 in a cross section on the vertical surface 16 including the center point of the lens surface 12 and forming a right angle to the lens surface 12.
Since the inclination angle C of the outer surface of the lens peripheral wall portion 6 which is connected and united to reach the connection portion with is less than 65 °, the resistance to water flow parallel to the lens surface 12 is reduced. Will decrease and the running water resistance will decrease.

By constructing the entire rear peripheral wall portion 8 from the same material as the material of the cushion portion 3, the flexible portion becomes large, and the fit to the face when wearing the goggles can be further improved. That is, with the configuration of claim 1, while maintaining normal fit, a necessary and sufficient field of view can be secured and the running water resistance value can be reduced, and with the configuration of claim 2, the fit to the face can be made better. Of.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, the swimming goggles are composed of a pair of left and right eyecups 1, a nose belt 2 connecting the eyecups 1, a cushion portion 3 contacting the face, a wearing belt 4 and the like.

As shown in FIGS. 1 and 2, the eyecup 1 is provided with a front lens portion 5 and a lens peripheral wall portion 6 extending rearward from the peripheral edge of the lens portion 5, and the lens peripheral wall portion is provided. 6 is a front peripheral wall portion 7 which is further adjacent to the peripheral edge of the lens portion.
A rear peripheral wall portion 8 is provided behind this. Front peripheral wall part 7
The rear peripheral wall portion 8 and the rear peripheral wall portion 8 are connected and united at a boundary surface 9, and their outer surfaces are flush with each other. The rear peripheral wall portion 8 is connected to the cushion portion 3 on the rear side thereof.

The lens portion 5 and the front peripheral wall portion 7 are integrally formed of a hard transparent material such as polycarbonate or cellulose propionate. On the other hand, the rear peripheral wall portion 8 and the cushion portion 3 are made of the same material, that is, a nylon type,
It is made of urethane-based or styrene-based elastomer, or soft synthetic resin such as silicone. The swimming goggles of the present invention have a lens part 5 that is pre-inserted in a mold.
By injecting the soft synthetic resin into the mold cavity with respect to the front peripheral wall portion 7 and the side portion 14,
It can be manufactured by integrally molding the lens portion 5, the front peripheral wall portion 7, the rear peripheral wall portion 8 and the cushion portion 3. Each component of the eyecup 1 and the cushion portion 3
Can be integrated by bonding using an adhesive, but it is preferable to integrally mold as described above in terms of strong integration and good finish.

A boundary surface 9 between the front peripheral wall portion 7 and the rear peripheral wall portion 8 has a distance corresponding to the horizontal diameter of the lens, that is, a distance from the lens surface inner end 10 to the lens surface outer end 11 inside the lens surface. The lens surface 12 is parallel to at least two-thirds of the area close to the end 11, and the distance between the boundary surface 9 and the lens surface 12 in the parallel portion is 2 mm. Can be selected within the range of 1 mm to 3 mm.

In the range outside the parallel portion 13 in the left-right direction, the curved portion 15 is curved outwardly along the outer front surface of the eyecup 1 and ends at the outer end portion 17 of the eyecup. It is desirable in terms of design that the transition from the parallel portion 13 to the curved surface 15 be a smooth curve. Further, the outer surfaces of the front peripheral wall portion 7, the side portion 14, and the rear peripheral wall portion 8 are also connected and united at the boundary surface 9.
In addition, it is flush with the connection portion with the cushion portion 3 . The inside of this curved surface portion 15 is the side portion 1
4 and the transparent effective visual field in the side portion 14 has a vertical distance A of 15 mm or more at the boundary between the lens surface outer end 11 and the side portion 14, and 6 mm outside from the boundary along the front surface of the side portion 13. The vertical distance B at the position
Is 12 mm or more.

In the cross section on the vertical surface (the vertical surface including the optical axis in the case of a spherical lens) including the center point of the lens surface and forming a right angle to the lens surface ,
Connection and connection to the connection with the session section 3
The inclination angle C of the outer surface of the lens peripheral wall portion 6 which is flush with the surface is set to 65 °.
Making it smaller. Regarding the connection between the nose belt 2 and the eyecup 1 and the connection between the eyecup 1 and the belt 4, a known technique is appropriately selected, but the running water resistance value is made small and the fitting property is not impaired. Adopt one.

[0021]

[Table 1]

Swimming goggles according to this embodiment,
Table 1 shows the results of measuring the resistance value of running water in running water by attaching the conventional swimming goggles to the human head model. As can be seen from Table 1, the resistance value of this example was smaller than that of the conventional product at any flow rate. In addition, Table 1
"Conventional product 1" is a type in which a cushion molded by an injection molding method is fitted into an eyecup, and "Conventional product 2" is a cushion manufactured by punching out a sponge sheet with an adhesive eyecup. The "conventional product 3" adhered to the above is only for eyecups without cushions that are said to be for swimming, and the numerical value is 1.0 in the nude state at each flow rate (human head model only). Is the resistance value.

[0023]

By setting the boundary surface 9 between the front peripheral wall portion 7 and the rear peripheral wall portion 8 and specifying the effective visual field at the side portion 14,
I was able to secure the necessary visibility. In addition, the inclination angle C of the outer surface of the lens peripheral wall portion 6 with respect to the lens surface 12 is limited,
In addition, the front peripheral wall portion 7, the side portion 14 and the rear peripheral wall portion 8 are connected and united at the boundary surface 9,
Since the connection to the connection part 3 is made flush, Table 1
As shown in, the running water resistance could be reduced. Further, since the entire rear peripheral wall portion 8 is made of the same material as the material of the cushion portion 3, the flexible portion becomes large, so that the fit property to the face when wearing the goggles becomes good.

[Brief description of drawings]

FIG. 1 is a bottom view showing an embodiment.

FIG. 2 is a front view showing an embodiment.

FIG. 3 is a sectional view taken along line XX of FIG. 1 showing an embodiment.

[Explanation of symbols]

1 eyecup 2 nose belt 3 cushion 4 belts 5 lens part 6 Lens peripheral wall 7 Front peripheral wall 8 Rear peripheral wall 9 boundaries 10 Inner edge of lens surface 11 Lens surface outer edge 12 lens surface 13 parallel parts 14 Side part 15 curved surface 16 vertical plane 17 Eyecup outer edge

Continuation of front page (56) Reference JP-A-4-144556 (JP, A) JP-B-62-23577 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A63B 33 / 00

Claims (3)

(57) [Claims] 1. A pair of left and right eyecups (1) having a lens part (5) and a lens peripheral wall part (6) extending obliquely rearward from the lens part peripheral edge, and a cushion part provided in each eyecup (1). (3) and a nose belt (2) connecting the left and right eyecups (1), which is adjacent to the lens part (5) of the lens peripheral wall part (6),
Parallel to the lens surface (12) in the range of at least two-thirds of the horizontal diameter of the lens surface (12) from the lens surface inner end (10) along the horizontal diameter of the lens surface (12), And more than 1mm and 3mm from the lens surface (12)
A region between the boundary surface (9) and the lens surface (12) at the following distance is defined as a front peripheral wall portion (7), and the boundary surface (9) is curved outward from the parallel portion (13). Has a curved surface portion (15) that extends and ends at the outer end (17) of the eyecup, and a side portion (14) is provided within the range of the curved surface, and the side portion (14) is located outside the lens surface. 15 mm or more in the vertical direction A at the end (11) and 6 from the lens outer end (11) along the eyecup surface.
The front peripheral wall portion (7) and the side portion (14) are integrally formed with the lens portion (5) as the same hard transparent material as the lens portion (5) by having a region of 12 mm or more in the vertical direction B on the outside of the mm portion. Then, the rear peripheral wall portion (8) and the cushion portion (3) are connected to the rear of the front peripheral wall portion (7) and the side portion (14), and the front peripheral wall portion (7), the side portion (14) and the rear peripheral wall portion ( 8) are connected and united at the boundary surface (9)
And the outer surface of each is the connection with the cushion (3).
Set to be flush until the, and includes the center point of the lens surface (12), and, in a vertical plane (16) on the cross section with respect to the lens surface perpendicular, cushion unit to the lens surface (12) To the connection with (3)
The swimming goggles are characterized in that the inclination angle C of the outer surface of the lens peripheral wall portion (6) , which has been connected and united until it becomes flat, is smaller than 65 °. 2. The swimming goggles according to claim 1, wherein the rear peripheral wall portion (8) is made of the same material as the cushion portion (3) and is integrally formed with the cushion portion (3). 3. A mold cavity is formed by inserting a lens part (5) integrally formed in advance, a front peripheral wall part (7) and a side part (14) made of the same hard transparent member as the lens part into the mold. The swimming goggles according to claim 1, wherein a material for the cushion portion is injected into the lens to integrally form the lens portion (5), the lens peripheral wall portion (6) and the cushion portion (3).