JPH0561722U - Eyeglass nose pad and eyeglass frame using the same - Google Patents

Abstract

(57) [Abstract] [Purpose] The structure of the pad foot and the engaging portion is simple, and no tool is required for detaching the pad foot from the butterfly box. An elastically deformable engaging portion is provided on a pad foot 5 that is fitted into the butterfly box 4, and the engaging portion is engaged with a hole 12 provided in the butterfly box 4. In a nosepiece for eyeglasses having 9, the engaging projection 9 is made of a flexible member to form an elastically deformable engaging portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a nosepiece for eyeglasses that can be attached to and removed from a butterfly box without using screws, and an eyeglass frame using the nosepiece for eyeglasses.

[0002]

[Prior Art]

 As a conventional nose pad for spectacles that can be attached to and detached from a butterfly box without using screws (hereinafter, simply referred to as a nose pad), for example, the one described in Japanese Utility Model Publication No. 51-31660 is known. As shown in FIG. 4 (a), this nose pad is provided with an elastically deformable engaging portion formed by a push spring 116 and a ball 117 on a pad foot 105 fitted in a butterfly box 104. The ball 117 of the engaging portion forms a locking projection 109 that is locked in a hole 112 provided as a locking recess in the butterfly box 104.

However, in the above-mentioned conventional technique, since the engaging portion is composed of the pressing spring 116 and the ball 117, the number of parts is large, the structure is complicated, and the cost is high.

Therefore, as a means for simplifying the structure of the engaging portion, for example, the one described in Japanese Utility Model Laid-Open No. 1-136919 is known. As shown in FIG. 4 (b), this nose pad comprises an elastically deformable engaging portion formed by the bent and raised piece 120 of the metal mounting bracket 119 fitted to the foot 118, and the bent and raised piece is formed. The projection 109 formed on 120 constitutes a locking projection.

However, in this conventional example, although the structure of the engaging portion is simpler than that of the previous one, since the pad foot 105 is composed of the mounting bracket 119 and the foot 118, the number of parts and The assembly process increases, and the cost is high.

Therefore, as a means for simplifying the structure of the pad foot and the engaging portion, for example, the one disclosed in Japanese Utility Model Laid-Open No. 61-109426 is known. As shown in FIG. 4C, in this nose pad, the forked portion 120 provided on the pad leg 105 constitutes an elastically deformable engaging portion, and the hooked protrusion 109 constitutes a locking convex portion. Has been done.

[0007]

[Problems to be solved by the device]

 In this conventional example, the pad foot 105 is made of one member, and since the engaging portion does not require a ball or a pressing spring, the number of parts is small and the structure is simple. However, this conventional example still has the following problems. That is, since the locking convex portion is composed of the projection 109 with a hook, an instrument for pushing the projection 109 through the hole 112 is required when removing the nose pad.

The present invention has been made in order to solve the various problems of the above-mentioned prior art, and an object of the present invention is to provide a butterfly box for a pad foot with a simple structure of a pad foot and an engaging portion. It is to provide eyeglass nose pads that do not require tools to be removed from the body.

It is also an object to provide a spectacle frame using such a nosepiece for spectacles.

[0010]

[Means for Solving the Problems]

 In order to solve the above problems, according to the present invention, an elastically deformable engaging portion is provided on a pad foot fitted into a butterfly box, and the engaging portion is a locking member provided on the butterfly box. In a nosepiece for eyeglasses having a locking convex portion that is locked in a concave portion, the locking convex portion is made of a flexible member to form the elastically deformable engaging portion. To do.

Further, it is preferable that the locking projection has a chamfered shape.

In addition, a through hole is provided in the pad foot, and a core member made of a flexible member having a size protruding from both ends of the through hole when fitted into the through hole is fitted into the through hole. It is desirable that the engaging projection is formed at a portion of the core material projecting from the through hole.

Further, it is preferable to provide a retaining means between the core material and the through hole.

Further, the locking convex portion may be formed integrally with the pad foot made of a flexible member.

It is preferable that the spectacle frame is provided with such a nose pad for spectacles.

[0016]

[Action]

 In the spectacle nose pad having the above structure, since the locking projection is made of a flexible member, the locking projection is deformed when the pad foot fitted to the butterfly box is pulled out. No device is required to disengage the locking projection from the locking recess and disengage the locking projection from the locking recess.

Further, in the case where the locking projection is chamfered, the locking projection is smoothly fitted into and removed from the locking projection, and the locking projection is prevented from being damaged.

[0018]

【Example】

 The present invention will be described below based on the illustrated embodiment.

FIG. 1 shows a nosepiece for eyeglasses according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an ophthalmic nosepiece which is connected to a rim 3 or the like of an eyeglass frame through a joint 2. There is.

The nose pad 1 for spectacles includes a butterfly box 4 fixed to one end of a joint 2, pad feet 5 fitted into the butterfly box 4, and a nose pad 6 attached to the other end of the pad feet 5. Composed.

A through hole 7 is provided in the pad foot 5, and a core material 8 made of a flexible member and having a size projecting from both ends of the through hole 7 when fitted into the through hole 7 is formed in the through hole 7. The engaging projection 9 is formed at the portion of the core 8 protruding from the through hole 7. The locking projection 9 made of this flexible member constitutes an elastically deformable engagement portion.

Examples of the flexible member include resins such as silicone, nylon, polyester, polyvinyl chloride, and polyurethane, rubber, and elastomer. However, the flexible member need only flex as much as possible, and metals such as nickel-titanium alloy and other shape memory alloys are also included in the flexible member.

Both ends of the core material 8 are chamfered to have a rounded shape, whereby the locking projection 9 has a chamfered shape.

The core material 8 is fitted into the through hole 7, and after fitting, the back surface of the pad leg is pressed by the punch 10 as shown in FIG. By doing so, the pad foot 5 containing the core material 8 is deformed as shown in FIG. 1E, and the core material 8 is inserted between the core material 8 and the through hole 7 on the side pressed by the punch 10. A retaining means 11 is formed to prevent the retainer 11 from coming out.

The hinge box 4 is provided with holes 12 as locking recesses for locking the pad legs 5 to the butterfly box 4 by fitting the locking projections 9 therein.

The operation and effect of this embodiment having the above configuration will be described below.

When the pad foot 5 of FIG. 1E is fitted into the butterfly box 4, the locking projection 9 is pressed from the inner surface of the butterfly box 4, but the locking projection 9 is flexible. Since it is made of a member, the locking projection 9 is elastically deformed in a direction (inward direction) that reduces the distance between the projections 9 and 9, whereby the pad leg 5 is fitted into the butterfly box 4. It will be put in. When the locking projection 9 comes to the hole 12 as the locking recess, the locking projection 9 elastically restores outward due to its flexibility. In this way, the pad legs 5 are fitted to the butterfly box 4 as shown in FIG.

When the pad foot 5 fitted into the butterfly box 4 is pulled out from the butterfly box 4, the locking projection 9 is deformed in the same manner as when it is inserted, so that the locking projection 9 is moved inward. Does not require any special device to push into.

Further, since the locking projection 9 is chamfered and has a rounded shape, it is possible to prevent the locking projection 9 from being damaged when the pad foot 5 is pulled out from the butterfly box 4. Get off.

Another embodiment of the present invention will be described below. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

FIG. 2 shows a nosepiece for eyeglasses according to a second embodiment of the present invention, which is different from the first embodiment in the structure of the retaining means. That is, in this embodiment, the diameter-reduced portion 13 in which the vicinity of the entrance of the through hole 7 is narrower than the central portion constitutes the retaining means. Since the core material 8 is made of a flexible material, it can be deformed and can be fitted into the through hole 7 having the reduced diameter portion 13. In this way, the nosepiece 1 for glasses as shown in FIG. 2C is obtained.

The spectacle nose pad 1 according to the present embodiment can also obtain the same effect as that of the first embodiment.

FIGS. 3 (a) to 3 (e) show a nosepiece for eyeglasses according to a third embodiment of the present invention, which also differs from the first embodiment in the structure of the retaining means. That is, in this embodiment, the diameter of the through hole 7 is made smaller than that of the core material 8, and the through hole 7 is formed from the back surface of the pad foot 5 with the drill 14 as shown in FIGS. 3 (a) and 3 (b). Make a hole 15 to penetrate. By doing so, a retaining means as the reduced diameter portion 13 is formed near the entrance of the through hole 7.

Also in this embodiment, the same effect as in the first embodiment can be obtained.

FIG. 3 (f) relates to a fourth embodiment of the present invention and is different from the first embodiment in that the locking projection 9 is formed integrally with the pad foot 5. .. In this embodiment, the same effect as that of the first embodiment can be obtained.

[0036]

[Effect of the device]

 As described above, in the eyeglass nose pad according to the present invention, since the locking projection is made of a flexible member, the locking projection is pulled out when the pad foot fitted to the butterfly box is pulled out. Is deformed so that it disengages from the locking recess, and no device is required to remove the locking projection from the locking recess.

Further, in the case where the locking projection is chamfered, the locking projection is smoothly fitted into and removed from, and the locking projection is prevented from being damaged.

[Brief description of drawings]

1 relates to a nose pad for eyeglasses according to a first embodiment of the present invention, (a) shows a state in which the nose pad is attached to an eyeglass frame body, and (b) shows a pad for the nose pad. Figure showing the legs,
(C) is a cross-sectional view taken along the line AA of (b), (d) and (e) are views for explaining a method of manufacturing a pad foot, and (f) shows a state in which the pad foot is fitted in a butterfly box. It is a figure.

FIG. 2 relates to a nosepiece for eyeglasses according to a second embodiment of the present invention, (a) showing a pad foot of the nosepiece, (b) a sectional view taken along line BB of (a), (C) is a figure which shows the state by which the core material was fitted in the pad leg.

3 (a) to 3 (e) are views for explaining a method of manufacturing a nose pad for eyeglasses according to a third embodiment of the present invention, FIG. 3 (e) is a sectional view taken along line CC of FIG. (F) is a diagram showing a configuration of a nose pad for glasses according to a fourth embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a conventional nose pad for spectacles.

[Explanation of symbols]

 4 Butterfly Box 5 Pad Feet 12 Hole (Concave for Locking) 9 Protrusion for Locking (Engaging Part) 7 Through Hole 8 Core Material 11, 13 Locking Means

Claims (6)

[Scope of utility model registration request] 1. A pad leg fitted into a butterfly box is provided with an elastically deformable engaging portion, and the engaging portion is engaged with an engaging recess provided in the butterfly box. A nosepiece for spectacles having a convex portion for use, wherein the convex portion for locking is made of a flexible member to form the elastically deformable engaging portion. 2. The nose pad for spectacles according to claim 1, wherein the locking projection has a chamfered shape. 3. A pad material is provided with a through hole, and a core material made of a flexible member having a size protruding from both ends of the through hole when fitted into the through hole is fitted into the through hole. The nosepiece for eyeglasses according to claim 1, wherein a locking projection is formed at a portion of the core material projecting from the through hole. 4. The nose pad for spectacles according to claim 3, wherein retaining means is provided between the core material and the through hole. 5. The nose pad for spectacles according to claim 1, wherein the locking projection is integrally formed with a pad foot made of a flexible member. 6. A spectacle frame comprising the nosepiece for spectacles according to claim 1.