JP6892731B2 - Eyeglass lens assembly, eye guard frame, eyeglasses - Google Patents

Description

The present invention relates to an eye guard technique for covering the upper part of the face, which is used by medical professionals and the like.

Medical professionals such as doctors and nurses wear a mask on the lower part of the face during surgery, etc., and when it is necessary to protect the eyes from the scattering of blood and body fluids of the patient, put it on the upper side of the mask. Wear an eye guard that covers the upper part of the face. As for eye guards, a transparent resin shield that covers both eyes of the wearer is widely used by attaching a transparent shield to a substantially U-shaped frame and wearing it on the head like glasses from above the mask.

In the medical field, it is important to wear masks and eye guards as a preventive measure against infection from patients to medical staff. Generally, new masks and eye guards are used each time and discarded after use. Especially in the case of eye guards, the shield is one-time disposable, and the frame is often disinfected and used multiple times. However, in a busy medical field such as surgery, the labor of attaching and detaching the shield to and from the frame becomes an extra burden on the medical staff, and fogging and dirt on the shield reduce the visibility. In particular, the type attached to the mask has a problem that not only a feeling of oppression is strong for the wearer because a part of the shield touches the face, but also the position is easily displaced and cloudiness and dirt are easily attached.

In view of this problem, the inventor of the present application attaches a single piece to a frame (hereinafter, simply referred to as "frame") to be detachably attached to the upper left and right ends of an elastic transparent resin plate that covers the upper part of the wearer's face. A shield (hereinafter, simply referred to as "shield") characterized by providing two through holes and a slit straddling both through holes at symmetrical positions near the edge, and an elastic rod-shaped body. It is formed in a substantially U-shape that can be fixed to the wearer's head, and inwardly curved portions that fit into the two through holes and slits are provided at the positions of both clasps of the wearer. An eye guard consisting of a characteristic frame has been developed and patent No. 5970145 has been obtained, and it has already been commercialized and used in medical institutions and the like.
Japanese Patent No. 5970145

Since the eye guard according to the patented invention can efficiently attach / detach the shield to / from the frame and keep the surface of the shield clean, thorough use of the eye guard in a busy medical field is promoted, and medical engagement is carried out. It contributes to improving the safety of people and medical practice. On the other hand, for doctors who use prescription eyeglasses, it is not only complicated to wear double eye guards on the eyeglasses, but it is also serious if a small screw of the eyeglasses falls into the treatment site. It may lead to medical accidents. If only the spectacle lens can be attached directly to the frame of the eye guard, the complexity of double wearing can be eliminated, but the spectacle lens attachment / detachment mechanism does not use any parts such as screws that may be dropped. Must.

In addition, in operating rooms and the like, shadowless lamps are used to illuminate the treatment site of patients so as not to cast shadows, but shadowless lamps have an extremely large amount of light, which imposes a heavy burden on the eyes of doctors. .. In addition, because of the risk of laser light entering the eye during surgery using a laser scalpel, doctors often wear protective goggles to protect the eye from harmful light. Since the eye guard shield itself is extremely thin and anti-fog is required, it is difficult to further process the light-shielding filter, but it is not possible to provide the spectacle lens attached to the eye guard frame with light-shielding property. It is possible.

The present invention provides an spectacle lens assembly to which a spectacle lens and a light-shielding lens can be attached and detached without using any parts that may come off such as screws, and an eye guard frame or spectacles provided with the spectacle lens assembly. The challenge is to provide.

In order to solve the above problems, the invention according to claim 1 is an eye guard frame or an spectacle lens assembly applicable to spectacles.
Lateral direction apart by at least one pair comprising a first lens fixing portion and a second fixing pin of the fixing pin and rearward of the forward facing each other a predetermined distance, and wherein Rukoto such a material having a resiliency to external force variations Bridge member and
A spectacle lens that can be attached to and detached from the lens fixing portion of the bridge member, and has a first fixing hole into which the first fixing pin can be fitted and a groove portion extending from the bridge side end to the first fixing hole on one side of the bridge side. The spectacle lens is provided with a second fixing hole into which the second fixing pin can be fitted on the opposite surface on the bridge side. It is characterized in that it does not have an independent separate member.

The eye guard frame according to claim 2 is characterized by including the spectacle lens assembly according to claim 1.

The spectacles according to claim 3 are characterized by including the spectacle lens assembly according to claim 1.

By using the eye guard frame provided with the spectacle lens assembly according to claim 1 of the present invention, it is possible to eliminate the risk of medical accidents such as the screws of the spectacles falling off during the operation and falling into the surgical site.

FIG. 1 is a perspective view showing an example of an eye guard 1 in which a shield 2 is attached to a frame 10. 2 is a perspective view of the bridge member 4 constituting the spectacle lens assembly according to claim 1 of the present invention, and FIGS. 3 and 4 are perspective views showing an embodiment of the spectacle lens 5 also constituting the spectacle lens assembly. Is. Further, FIG. 5 is a perspective view showing a state in which the bridge member 4 is attached to the eye guard frame 10.

As shown in FIG. 2, the bridge member 4 is a bent portion of the bridge portion 40 having a clings arm 42 to which the nose pad 43 can be attached and detached by bending the tips of two leg portions 41 of a substantially U-shaped rod member. At two places, the inner girder 44 with both ends of the bar bent into a key shape and both ends facing forward as two first fixing pins 45, and both ends of the bar bent into a substantially L shape. The outer girder member 46 having both tips facing backward as two second fixing pins 47 is attached side by side by a method such as welding. Further, the bridge member 4 is attached to the frame 10 by a method such as welding as shown in FIG.

The first fixing pin 45 and the second fixing pin 47 face each other with a gap d, and form a pair of lens fixing portions 48 composed of both fixing pins. The length of the interval d is arbitrary, but is preferably about 3 mm to 4 mm. The materials of the leg portion 41, the inner girder member 44, and the outer girder member 46 are assumed to have resilience to external force deformation, and when the material of the frame 10 is β titanium, the same β titanium is preferable. The lengths of the first fixing pin 45 and the second fixing pin 47 are set to be equal to or less than the thickness of the spectacle lens 5 at the positions of the first fixing hole 51 and the second fixing hole 53, which will be described later, respectively.

As shown in FIGS. 3 and 4, the spectacle lens 5 has a first fixing hole 51 into which the first fixing pin 45 can be fitted on the back surface of the lens body 50 on the bridge side, and a first fixing hole 51 from the bridge side end. A straight groove portion 52 is provided, and a second fixing hole 53 into which the second fixing pin 47 can be fitted is provided on the surface. The first fixing hole 51 and the second fixing hole 53 may be either a through hole or a blind tube hole, but when the first fixing pin 45 and the second fixing pin 47 penetrate each other, the tip thereof is the opposite surface of the lens body 50. It shall not protrude to the lens. Further, in the cross section of the left and right lens bodies 50 on the bridge side, a first cross-section recess 54 is provided at the position of the groove 52, and a second cross-section recess 55 is provided at a position of contact with the clings arm 42. The inner girder member 44 is fitted in the first cross-section recess 54, and the clings arm 42 is fitted in the second cross-section recess 55.

FIG. 6 is an enlarged view showing a state in which the spectacle lens 5 is attached to the bridge member 4, and FIG. 7 is an enlarged view showing a state in which the spectacle lens 5 is attached and detached. The spectacle lens 5 can be attached to the bridge member 4 as follows.
(1) First, both nose pads 43 are sandwiched between fingers and a force is applied inward as shown by arrow A in the drawing to bend the left and right clings arms 42 inward. As a result, both ends of the inner girder member 44 are curved rearward, and the first fixing pin 45 moves rearward as shown by an arrow B in the drawing, so that a distance from the second fixing pin 47 is generated. This interval is increased until the thickness of the lens body 50 has passed.
(2) The bridge side of the lens body 50 is inserted at this interval, the second fixing pin 47 is inserted into the second fixing hole 53, and the first fixing pin 45 is brought into contact with the groove portion 52.
(3) When the force applied to the nose pads 43 is relaxed in this state, the bent clings arm 42 and the inner girder member 44 return to their original shapes due to the elastic repulsive force. At this time, the first fixing pin 45 slides along the groove 52 toward the center of the lens body 50, falls into the first fixing hole 51, and stops. As a result, the lens body 50 is fixed at a predetermined position by the first fixing pin 45 and the second fixing pin 47. Since the lens body 50 is sandwiched between the inner girder member 44 and the outer girder member 46, displacement in the front-rear direction is prevented, and since the inner girder member 44 is fitted in the groove 52, displacement in the vertical direction is also prevented. It comes off. Further, since the bridge side of the key portion of the inner girder member 44 is fitted in the first cross-sectional recess 54 of the lens body 50, the deviation in the left-right direction can be prevented.

When removing, hold both nose pads 43 with your fingers and apply force in the same way as in (1) mounting, and rearward both ends of the inner girder member 44 until the first fixing pin 45 comes out of the first fixing hole 51. Curve. (2) While maintaining that state, the second fixing pin 47 is removed from the second fixing hole 53, and the lens body 50 is removed. (3) After that, when the force applied to the nose pads 43 is relaxed, the bent clings arm 42 and the inner girder member 44 return to their original shapes due to the elastic repulsive force.

As described above, by applying the spectacle lens assembly composed of the bridge member 4 and the spectacle lens 5, the spectacle lens does not use any independent fixing member such as a screw (which may fall off because it is separable). A removable frame can be realized.

Although the specific configuration of the spectacle lens assembly of the eye guard frame, the eye guard frame, and the spectacles according to the present invention has been described above, the present invention is not limited to the above embodiment, and the present invention is not limited to the above embodiment. It can be improved or modified within the scope of the idea, and they belong to the technical scope of the present invention.

The present invention is intended to be applied mainly to an eye guard used by a medical worker in a medical field. However, the eye guard to which the spectacle lens assembly according to the present invention is added includes a prescription spectacle and an eye guard. Not only can it eliminate the complexity of double-mounting, and it can also be attached to the eye guard of a light-shielding lens that protects the eyes of doctors, etc. from the light of shadowless lamps and the laser light of laser scalpels, as well as screws, etc. Since it has the structural advantage that the spectacle lens can be attached to the frame without using any parts, it can be used not only for medical use and sports but also for conventional spectacles in general.

Perspective view showing an example of eye guard Perspective view of the bridge member according to the embodiment A perspective view showing a state in which a bridge member is attached to an eye guard frame. Perspective view of the spectacle lens according to the embodiment Enlarged view of the bridge side of the spectacle lens according to the embodiment A perspective view showing a state in which the spectacle lens is attached to the bridge member according to the embodiment. Perspective view showing a state in which the spectacle lens is attached to and detached from the bridge member.

d Spacing between the 1st fixing pin and the 2nd fixing pin 1 Eye guard 10 Frame 11 Temple part 12 Shield mounting part 13 Mount part 14 Hook part 15 Head part 2 Shield 4 Bridge member 40 Bridge part 41 Leg part 42 Klings arm 43 Nose pad 44 Inner girder 45 1st fixing pin 46 Outer girder 47 2nd fixing pin 48 Lens fixing part 5 Eyeglass lens 50 Lens body 51 1st fixing hole 52 Groove 53 2nd fixing hole 54 1st cross-section recess 55 2nd cross-section recess

Claims (3)

Lateral direction apart by at least one pair comprising a first lens fixing portion and a second fixing pin of the fixing pin and rearward of the forward facing each other a predetermined distance, and wherein Rukoto such a material having a resiliency to external force variations Bridge member and
A spectacle lens that can be attached to and detached from the lens fixing portion of the bridge member, and has a first fixing hole into which the first fixing pin can be fitted and a groove portion extending from the bridge side end to the first fixing hole on one side of the bridge side. A spectacle lens characterized in that the opposite surface on the bridge side is provided with a second fixing hole into which the second fixing pin can be fitted.
An spectacle lens assembly comprising only one and not having an independent separate member for coupling the bridge member and the spectacle lens. An eye guard frame comprising the spectacle lens assembly according to claim 1. A spectacle comprising the spectacle lens assembly according to claim 1.

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