GB2291210A

GB2291210A - Spectacle nose piece

Info

Publication number: GB2291210A
Application number: GB9412438A
Authority: GB
Inventors: Ming Chieh Chen
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-21
Filing date: 1994-06-21
Publication date: 1996-01-17
Also published as: GB9412438D0

Abstract

A nose piece 100 of spectacles includes two nose pieces made of soft plastic with concave surface which is planted with fine down and formed with several air permeable holes 110 therein. A connecting axle 120 is integrately formed on the rear surface of nose piece and extended into a base 200. A protruding ball 130 is formed at one end of the connecting axle and is held in the base. The protruding ball has a flat top surface 150 to contact with a spectacle seat and has a concave bottom surface 140 to match a pressing detent 300 below. A torsional spring 400 is disposed in the base along with pressing detent. A latching axle 500 is used to hold the base, pressing detent and torsional spring together. Pressing detent cover 330 is shown. <IMAGE>

Description

IMPROVED STRUCTURE FOR NOSE PIECES OF SPECTACLES This invention relates to spectacles, particularly for noise pieces of improved structure.

Nose piece of spectacles is a component disposed on a spectacle seat mounting on a wearer's nose bridge and to support the spectacles. Conventional nose pieces have the shortcomings of making wearer feel not comfortable, connot adjust the angle, slipery, not air permeable and difficult to assemble.

It is accordingly an object of the present invention to provide further structural improvements on spectacles nose pieces that can be easily adjusted and reliable to use and can suit different wearer's particular requirements.

The present invention particularly contemplates to use a soft plastic to form spectacles nose pieces, and to dispose fine down on its surface and to dispose a plurality of through holes therein for air permeation purpose.

The present invention also contemplates to employ a connecting axle with a protruding ball which has flat top surface and a concave bottom surface to increase the stability and to facilitate the assembly.

The present invention has the advantages of making wearer feel comfortable and reduce the presure on wearers nose bridge, automatically adjusting angle to fit wearer's nose bridge, not slippery, enhanced safety and protection, air permeable and easy to disassemble.

Additional objects and advantages of the present invention are made apparent in the following description having reference to the accompanying drawings.

An embodiment of the invention is described by way of example with erference to the drawings, in which: FIG. 1 is a breakup view of the present invention.

FIG. 2 is a fragmentary plan view of a nose piece of the present invention.

FIG. 3 is a side view of the present invention with a fragmentary cutaway section view of a spectacles seat.

FIG. 4 is a top view of the present invention.

FIG. 5 is a plan view of the present invention taken in section along section line A-A of FIG.3.

FIG. 6A is a plan view of a base of the present invention.

FIG. 6B is a plan view of a pressing detent of the present invention.

FIG. 6C is a plan view of a torsional spring of the present invention.

FIG. 6D is a plan view of a pressing detent cover of the present invention.

Referring to FIG. 1, the present invention includes major components of nose piece 100, base 200, pressing detent 300, pressing detent cover 330, torsional spring 400, latching axle 500. Also referring to FIG. 2, nose piece 100 is made by soft plastic material and has an oval shape and a front concave surface. The concave surface is planted with fine down or covered by fine cloth. Nose piece 100 is disposed with a plurality of air permeable through holes 110.

A connecting axle 120 is integrately disposed on the rear surface of nose piece. A protruding ball 130 is formed at one end of connecting axle 120. Protruding ball 130 has a concave bottom surface 140 and a flat top surface 150.

Referring to FIG.3, 4, 5 and 6A, base 200 has a protruded P shape head 210 engaging with a spectacles seat 700, and forms a n shape crosssection in the lower section.

Two holes 220 and 230 are formed respectively on the left and the right sidewalls of the lower section and have a common axis. Another opening 240 is formed on the left sidewall of the lower section.

Also referring to FIG. 6B, pressing detent 300 has a top pressing arm 310 matching with the concave bottom surface 140 of protruding ball 130, and has a hole 320 formed on a front wall, and has a concave latch opening 370 formed on a rear wall.

Also referring to FIG. 6D, pressing detect cover 330 has a J shape rear wall 350, a protrudent latching flange 380 is formed to engage with latch opening 370 on pressing detent 300. An opening 340 is formed at another end.

Also referring to FIG. 6C, torsional spring 400 is disposed inside of base 200, has two spring legs 410 and 420 to maintain a pre-set tension.

Latching axle 500 has a hollow end 510 and run through holes 220 and 230 of base 200.

Referring to FIG. 3, 4 and 5 for the assembly and structure of the present invention, torsional spring 400 is disposed in front of hole 320 of pressing detent 300, then pressing detent and torsional spring is disposed together in base 200, Holes 220, 320, and torsional spring 400 are aligned in the same axis and with latching axle 500 ran through them. Latching axle 500 has its hollow end 510 stamped flat to engage firmly with base 200. Connecting axle 120 and protruding ball 130 run through opening 240 and is disposed in base 200, and having flat top surface 150 disposed below spectacles seat 700, and concave surface 140 matched with top pressing arm 310. Pressing detent cover 330 is then disposed between pressing detent 300 and base 200 with opening 340 engaging with latching axle 500. Thus complete the assembly of a spectacle nose piece of the present invention.

The nose piece assembly then can be installed in the spectacles by disposing P shape head 210 of base 200 in seat 700 and fixed by a screw 800.

Comparing with the previous invention illustrated in FIG. 7, the present invention has the following advantages.

1. Flat top surface 150 of protruding ball 130 keep steady contact with seat 700 due to larger contact area and the applied pressure of torsional spring 400 and pressing detent 300, making assembly and disposing of screw 800 more easily. Also making protruding ball 13 to be held more securely in base 200, and allows wearer to adjust the nose piece more effectively to fit wearer's face profile and nose bridge, also to make focus of spectacles more easily.

2. Only one hole 320 is formed on pressing detent 300, making machining and assembly more easily.

3. An opening 340 is formed on pressing detent cover 330 to engage with latching axle 500, making assembly more easily.

4. Latching axle 500 holds various components together firmly by means of stamping a hollow end flat, making production and assembly more easily and economically The present invention further contemplates the following features and advantages in the structure set forth above; 1. The concave bottom surface 140 of protruding ball 130 and the matching top pressing arm 310 of pressing detent 300 can be made in other forms such as flat surface, slant surface or curved surface to achieve same effect as concave surface.

2. The flat top surface 150 of protruding ball 130 and the flat contact of seat 700 can be made in other forms such as concave surface, slant surface or curved surface to achieve same effect as flat surface.

3. The engagement of latch opening 370 of pressing detent 300 and latching flange 380 of pressing detent cover 330 can be made by an alternative means such as adhesive bonding.

Claims

CLAIMS:

1. An improved structure for nose piece of spectacles to engage with a seat of spectacles comprising: a nose piece being made of soft plastic and having a concave front surface, said front surface being disposed with fine down and having a plurality of air permeable through holes formed therein, said nose piece further having an integrated connecting axle extended from a rear surface, said connecting axle having a protruding ball disposed at one end, said protruding ball having a flat top surface being contact with a bottom surface of the seat and having a concave bottom surface;; a base having a protruded P shape head and a hollow lower section formed in n shape cros section, said P shape head engages with the seat on the spectacles, said lower section having two holes formed on a left and a right sidewall respectively, the left sidewall further having an opening allowing said connecting axle and said protruding ball to pass through and allowing said protruding ball be pivotally held in said base; a pressing detent having a protrudent top pressing arm matching with the concave bottom surface of said protruding ball, having a hole formed on a front wall and being coaxially aligned with the two holes on said base, and further having a concave latch opening formed on a rear wall, said pressing detent is disposed in said base;; a pressing detent cover having a J shape rear wall, having an opening formed at one end, and further having a protrudent latching flange to engage with the latch opening on said pressing detent, said pressing detent cover is disposed in said base and having the opening coaxially aligned with the hole on said pressing detent; a torsional spring having two spring legs and is disposed in said base, the two spring legs being held respectively on the top pressing arm of said pressing detent and on an inside wall of said base; and a latching axle having a cavity formed at one end, said latching axle runs through the two holes on the sidewalls of said base, the hole on the front wall on said pressing detent, the opening on said pressing detent cover and said torsional spring, the cavity is stamped flat to fix on said base.

2. An improved structure for nose pieces of spectacles of claim 1 wherein contact between the bottom surface of said protruding ball and the top pressing arm of said pressing detent is flat surface, slant surface or curved surface.

3. An improved structure for nose pieces of spectacles of Claim 1 wherein contact between the top surface of said protruding ball and the bottom surface of the seat is concave surface, slant surface or curved surface.

4. An improved structure for nose pieces of spectacles of Claim 1 wherein engagement between the protrudent latching flange of said pressing detent cover and the latch opening of said pressing detent is a snap-fit lock or point-welding.

5. An improved structure for nose pieces of spectacles of Claim 1 wherein said nose pieces being made by air permeable materials.