CN1372990A

CN1372990A - Swimming glasses

Info

Publication number: CN1372990A
Application number: CN02108084A
Authority: CN
Inventors: 川岛春雄; 深泽俊二
Original assignee: TAHATA CO Ltd
Current assignee: TAHATA CO Ltd
Priority date: 2001-01-10
Filing date: 2002-01-10
Publication date: 2002-10-09
Anticipated expiration: 2022-01-10
Also published as: KR20020060616A; JP2002204809A; JP3686584B2; KR100398943B1; CN1263528C; TW586432U

Abstract

The swimming goggles have the lens member 2 made from hard material and the cushion pad member 3 made from soft elastic material 32. At the peripheral wall part 12 of the member 12, rear projection parts 21 and 24 having holes 26 and 27 are formed and rear projection parts shielding the holes 26 and 27 from their front side are formed in front of the parts 21 and 24. The material 32 fills gaps between the holes 26, 27, the parts 21, 24 and the front projection part, and covers the parts 21 and 24 in the neighborhood of the hole 26 and 27.

Description

Contact lens

Background of invention

The present invention relates to contact lens.

In U.S. Pat 5802621, secondary contact lens are disclosed, these contact lens comprise the lens that a secondary rigid material is made, a cushion pad and the headband that elastomeric material is made.This cushion pad is made by injection moulding, comprises a pair of air ring district, this air ring district be in injection molding technique, be welding in respectively on the perisporium of lenticular body and one make the interconnected ose band of two buffering areas district.This buffering area and ose band district be whole formation in the injection molding process process, and the proximal end region of contiguous each buffering area is suitable for being contained in the small embossment that forms and extend forward from each edge of lens on each edge of lens on the ose band.

The lenticular unit of disclosed contact lens and buffering parts integrally are welded together in the injection molding process process in the above-mentioned file of quoting.But, also might when external force puts on buffer unit, cause the lens that are welded together and buffering isolation of components or come off each other, and therefore make water-filling between lens and wearer's the face.For buffer unit, the proximal end region of ose band safely and the projection that is formed at the edge of buffering area be connected.Although when ose band during at longitudinal stretching, these are provided with and can prevent effectively that buffer unit from separating or come off from lenticular unit,, according to the difference of ose band tension direction, the possibility that still exists or all protuberance branches from ose band, to come off out.

Summary of the invention

For aforesaid problem, the objective of the invention is to improve above-mentioned traditional contact lens, these traditional contact lens comprise the buffer unit of being made lenticular unit and being made by the elastomeric material of flexibility by rigid material, like this, these lens can be connected and the danger that do not separate even come off securely with the buffering parts.

According to the present invention, aforesaid goal of the invention is to be achieved by the contact lens that comprise secondary contact lens are given following improvement, promptly these contact lens comprise the lenticular unit that a pair is made by rigid material, and has the lens region that limits the lenticular unit front portion respectively, the lens perimeter wall that extends back from the periphery of lens region respectively, the ose band district that forms and between the interior turning of lenticular unit, extend by elastomeric material, the headband that between the outer end region of lenticular unit, extends, and form and be positioned at cushion pad on the rear end region of lens perisporium by the elastomeric material of flexibility.

Improvement according to the present invention is characterised in that the perisporium of each lens is formed with the back expansion area of launching from the posterior transversal of lens perisporium on its peripheral surface at least a portion, this expansion area, back is adjacent to the face of eyeglass wearer, the front of expansion area and farther to the distance of wearer's face after preceding expansion area is positioned at respect to the expansion area, back, wherein this expansion area, back has a through hole to extend to the lenticular unit fore-and-aft direction, preceding expansion area has covered the part of through hole at least from the front simultaneously, the elastomeric material of its ose band or cushion pad not only is filled into through hole but also closely bonds in the preceding expansion area that has covered through hole, near through hole, covered back expansion area.

Description of drawings

Fig. 1 is the perspective view of contact lens;

Fig. 2 is the vertical view of lenticular unit;

Fig. 3 is the side view of lenticular unit;

Fig. 4 is an IV-IV line side cross sectional view in Fig. 2;

Fig. 5 is a V-V line side cross sectional view in Fig. 2;

Fig. 6 is a VI-VI line side cross sectional view in Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing, contact lens of the present invention are described in detail.

Fig. 1 with perspective view shows one secondary contact lens 1, these contact lens comprise a secondary lenticular unit 2 and a cushion pad 3, said lens parts 2 and cushion pad 3 constitutes the front portion of glasses 1, headband 4 limits the rear portion of glasses 1.Lenticular unit 2 is made by transparent rigid material (as polycarbonate resin); Buffer unit 3 is made by elastomeric material (for example silicone rubber).Buffer unit 3 has a pair of ring-type cushion region 6 of extending around each lenticular unit 2, between the corner regions 15 and be used to connect buffer area 6, projection arm district 8 extends back from the external corners district 16 of each lenticular unit 2 in each lenticular unit 2 in ose band zone 7.Headband 4 is connected with 8 adjustable length ground, arm district via bracelet 9, and each bracelet 9 is inserted in the mould when cushion pad 3 is made in injection mo(u)lding.Therefore, lenticular unit 2 becomes integral body with buffer unit 3 when buffer unit 3 is made in injection mo(u)lding.Under the optimum that injection mo(u)lding is made, buffer unit 3 is fusion welded on the lenticular unit 2.

Fig. 2 and Fig. 3 are respectively the vertical view and the side view of lenticular unit.Each lenticular unit 2 has the lens region 11 and the perisporium 12 that extends back from the surrounding edge of lens region 11 that form lenticular unit 2 front portions.This perisporium 12 has first expansion area 21, this first expansion area 21 is laterally expanded from the back region of the wall 12 that is positioned at the facial (not shown) adjacent side of eyeglass wearer, 22 to the first expansion areas, second expansion area are far away with respect to the distance of wearer's face, and the 3rd expansion area 23 is more farther than second expansion area with respect to the distance of wearer's face.An edge has been determined for perisporium 21 in first expansion area 21.First to the 3rd expansion area 21-23 extends constantly or centers on the periphery of whole lenticular unit 2 basically off and on, except interior corner region 15.At the interior corner region 15 of lenticular unit 2, perisporium 12 is formed with two expansion areas, and one of them is that another is the 5th expansion area 25 that is positioned at 24 fronts, the 4th expansion area to the 4th expansion area 24 of interior corner region 15 extensions of another lenticular unit 2.First expansion area 21 forms the through hole 27 of an outer end on the outer corner region 16 of lenticular unit 2, this through hole 27 extends along the fore-and-aft direction of first expansion area 21.The 4th expansion area 24 on the interior corner region 15 of lenticular unit 2 forms an inner through hole 27, and this inner through hole 27 extends along the fore-and-aft direction of the 4th expansion area.Second expansion area 22 and/or the 3rd expansion area 23 are positioned at the front of outer end through hole 26 so that completely or partially cover this through hole.As shown in Figure 3, gap 28 is arranged between first expansion area 21 and second expansion area 22, and gap 29 is arranged between first expansion area 21 and the 3rd expansion area 23 simultaneously.Extend around the whole basically periphery (except interior corner region 15) of lenticular unit 2 continuously or off and in gap 28,29.The 5th expansion area 25 is positioned at the front of inner through hole 27 so that cover this through hole 27 at least in part.By shown in Figure 3, the 5th expansion area 25 partly covers open front end 31 (see figure 4)s of inner through hole 27.

Fig. 4 and Fig. 5 profile for dissecing along the IV-IV shown in Fig. 2 and V-V line respectively is with the interior corner region 15 and the outer corner region 16 of detailed expression lenticular unit 2.With reference to figure 4, perisporium 12 is formed with the forward open end 31 that the 4th expansion area 24 and inner through hole 27, the five expansion areas 25 partly cover through hole 27 at its outer surface.With reference to figure 5, the peripheral surface of perisporium 12 from the peripheral edge of lenticular unit 2 extend back (among Fig. 5, representing to be directed downwards) form first-Di, three expansion area 21-23, and on first expansion area 21 accessibke porosity 26 is arranged, accessibke porosity 26 passes first expansion area 21 along the fore-and-aft direction of first expansion area 21.Gap 28 is arranged between first and

second expansion areas

21,22, and gap 29 is arranged between the first and the

3rd expansion area

21,23 simultaneously.

Fig. 6 is the side cross sectional view along the VI-VI line shown in Fig. 1.The 3 injection mo(u)lding manufacturings of cushion pad parts are so that be combined into one with lenticular unit 2, will with form liner component 3 and have identical flexible plastic material 32 to be filled into the outer end and the

gap

28,29 of near the through hole 26 the outer corner region 16 of each lenticular unit 2.Simultaneously, near plastic material 32 tight linking or be welded on the peripheral surface of perisporium 12 through hole 26 so that cover first expansion area 21.Among bracelet 9 is connected to and is inserted into bracelet 9 from each arm district 8 that cushion pad parts 3 extend back and headband 4.Near the interior corner regions 15 of lenticular unit 2, plastic material 32 is filled into inner through hole 27 and is welded to the

surface

33,34 of its back and side, so that cover the 4th expansion area 24.Near interior corner regions 15, plastic material 32 not only closely connects but also is welded to each zone of each lenticular unit 2.Near interior corner region 15, the 4th expansion area 24 vertically is connected with the proximal end portion zone 36 in ose band zone 7 ose band 7.The interior corner region 15 of each lenticular unit 2 and outside between the corner region 16, plastic material 32 has not only covered first expansion area 21 but also has covered first expansion area 21 that the circumferencial direction at perisporium 12 extends near outer end through hole 26.As shown in Figure 1, plastic material 32 has also been filled

gap

28,29, and the gap is extended and closely connected even preferably be welded on the whole circumference of perisporium 12 along circumferencial direction.

As glasses 1, have the power in the cross directional stretch ose band district 7 shown in double-head arrow among the figure 10, and this power is not delivered on the cushion pad 6 with upper type assembling.This is because this power is absorbed by the end 36 (as Fig. 6) of each the 4th expansion area 24 via the plastic material 32 that is filled in inner through hole 27.Like this, cushion region 6 can be from each lenticular unit 2 not separately or come off and ose band district 7 also can not come off from each the 4th expansion area 24.In addition, part plastic material 32 is filled into each inner through hole 27 moved forward and can prevent ose band 7 with respect to relevant through hole 27 with the 5th expansion area 25 that prevents to be correlated with relevant proximal end region 36 and separates or come off from the perisporium 12 of each lenticular unit 2.The space that like this, also can not take place between lenticular unit and the wearer's face can be because lenticular unit and flow to the phenomenon of water near separations appear in end regions 36.Near the outer corner region 16 of each lenticular unit 2, second expansion area 22 and/or the 3rd expansion area 23 closely are connected or welded to the part of the elastomeric material 32 that is filled into outer end through hole 26 from the front portion.By this way, just needn't worry that elastomeric material 32 can move forward with respect to through hole 26, even when wave in the arm district 8 that supports headband 4, needn't worry that also buffer unit 3 may separate or comes off from lenticular unit 2.Therefore, can not have current between lenticular unit 2 and the wearer's face advances.

Within the scope of the invention, also contact lens 1 be can assemble like this, near the outer corner region 16 of each lenticular unit 2, one of second expansion area 22 or the 3rd expansion area 23 only formed in 21 fronts, first expansion area.Also can, each lenticular unit 2 has any in first expansion area 21 and the 4th expansion area 24.The present invention can realize also that by this way the pad regions 6 that promptly constitutes buffer unit 2 is provided with respectively with ose band 7.

The contact lens that obtain according to the present invention, buffer unit link together with the perisporium of lenticular unit reliably, and the danger that does not have buffer unit to separate or come off from perisporium.This gives the credit to the assembling of uniqueness of the present invention, perisporium back at lenticular unit forms the expansion area, and through hole is arranged on the expansion area, and the plastic material that forms buffer unit is filled in these through holes, plastic material has covered these expansion areas, and is closely bonded to other expansion area that is positioned at the through hole front.

Claims

1, one secondary contact lens comprise: the lenticular unit that a pair is made by rigid material, the lens perisporium that these lenticular units have the lens area of determining described lenticular unit front portion respectively and extend back from the periphery of described lens area respectively, the ose band district of making by elastomeric material and in each of described lenticular unit, extending between the corner region, a headband that between each outer end region of described lenticular unit, extends, and cushion pad that elastomeric material is made, this cushion pad is positioned on described each back-end region of lens perisporium, and described contact lens are characterised in that:

The perisporium of described each lens has the back extended area of the face of extending transversely and contiguous eyeglass wearer from the Background Region of described perisporium on its at least a portion outer surface, with be positioned at front, expansion area, described back, than the farther preceding expansion area of the described back expansion area described eyeglasses wearer face of distance, expansion area, wherein said back has a through hole to extend to the lenticular unit fore-and-aft direction, preceding expansion area has covered the part of through hole at least from the front simultaneously, any one elastomeric material is not only inserted described through hole in described ose band and the cushion pad, and closely bond in the described preceding expansion area that covers described through hole, near described through hole, cover expansion area, described back.

2. glasses as claimed in claim 1, wherein said ose band zone forms by a kind of identical elastomeric material is whole with described cushion pad.

3. glasses as claimed in claim 1 or 2, wherein said ose band zone and described cushion pad in the injection molding process process in conjunction with as a whole.

4. glasses as claimed in claim 1, expansion area, wherein said back is determined by the flange that forms on the described lens perisporium.

5. glasses as claimed in claim 1 or 2, wherein said through hole not only are formed on described interior corner region, and are formed in the described outer corner region of described lenticular unit.