EP2577383A1 - A device for closing a lens rim of an eyeglass frame - Google Patents

A device for closing a lens rim of an eyeglass frame

Info

Publication number
EP2577383A1
EP2577383A1 EP11729686.3A EP11729686A EP2577383A1 EP 2577383 A1 EP2577383 A1 EP 2577383A1 EP 11729686 A EP11729686 A EP 11729686A EP 2577383 A1 EP2577383 A1 EP 2577383A1
Authority
EP
European Patent Office
Prior art keywords
rim
portions
closing
lens
connection ends
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11729686.3A
Other languages
German (de)
French (fr)
Inventor
Silvio Da Pra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fovs Srl
Original Assignee
Fovs Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fovs Srl filed Critical Fovs Srl
Publication of EP2577383A1 publication Critical patent/EP2577383A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C1/00—Assemblies of lenses with bridges or browbars
    • G02C1/06—Bridge or browbar secured to or integral with closed rigid rims for the lenses
    • G02C1/08—Bridge or browbar secured to or integral with closed rigid rims for the lenses the rims being tranversely split and provided with securing means

Definitions

  • the present invention relates to a device for closing a lens rim of an eyeglass frame.
  • lenses are typically secured to lens rims of eyeglass frames using a lock joint, which is formed by a peripheral rib defined on the lens edge, which rib is designed for snap-fit into a corresponding groove defined on the inner face of the corresponding lens rim of the frame.
  • the lens is elastically deformed to be force fitted into the rim; such forced deformation of the lens shall be performed with the utmost care to avoid damages to the lens.
  • the quality of the lock depends on the quality of the lens and rim finishes, and even a minor dimensional error might affect the effectiveness of the lock.
  • Another common arrangement for locking a lens in a frame rim is based on a lateral split defined on the rim, where two laterally projecting portions are defined at the connection ends of the rim, having holes in a direction substantially tangent to the outer profile of the frame rim, for receiving a screw designed to extend through the first of said projecting portions with holes, and to screw into the mating threaded hole in the other.
  • the purpose of the present invention is to provide a device for closing a lens rim of an eyeglass frame that can obviate the above prior art systems.
  • one object of the invention is to provide a device for closing a frame rim that is not less effective than the screw arrangement, while providing a quicker opening and closing function.
  • Another object of the invention is to provide a closing device that can be used in eyeglasses made of metal, plastic and composite materials, and in both sunglasses and prescription glasses.
  • a further object of the invention is to provide a closing device that can be also handled with bare hands, without using particular equipment.
  • Another important object of the invention is to provide a device for closing a lens rim of an eyeglass frame that can be manufactured with prior art plants and technologies, and at low costs.
  • a device for closing a lens rim of an eyeglass frame said rim being split at a portion thereof, and with the connection ends adapted to be opened apart for receiving a lens in said rim, which is characterized in that each of said connection ends is formed with an opening for receiving a corresponding portion of a hook element, which is adapted to press together the facing end surfaces of the connection ends.
  • FIG. 1 shows an open frame rum which is designed to be closed by a device of the invention
  • FIG. 2 is a perspective view of the hook element of the device of the invention.
  • FIG. 5 is an exemplary view of a part of the frame that carries a device for closing a lens rim of the invention.
  • a device for closing a lens rim of an eyeglass frame according to the invention is generally referenced 10.
  • the lens rim 1 1 is split at one area, with the connection ends 12 and 13 adapted to be spaced apart for receiving a lens in said rim 1 1 , as shown in Figure 1.
  • This device 10 is characterized in that an opening 14 and 15 is defined on each of the connection ends 12 and 13 respectively, and is adapted to receive a corresponding portion 16 or 17 of a hook element 18, which is adapted to press the facing end surfaces, 19 and 20 respectively, of the connection ends 12 and 13 against each other.
  • each of the openings 14 and 15 is given by a notch defined on the outer side edge of the corresponding connection end 12 and 13 and extending into the rim 1 1, i.e. towards the eyeglass lens seat.
  • Each of said openings 14 and 15 has a shape that defines an anti-removal ridge, 22 and 23 respectively, which is designed to prevent accidental release of the corresponding portion 16 and 17 of the hook element 18 when the device 10 is closed.
  • the openings 14 and 15 extend into the rim 11 each in one direction X and XI respectively, substantially converging with the direction of extension of the other opening.
  • the minimum distance A between such two portions 16 and 17 is smaller than the distance B between the access edges of such openings 14 and 15, i.e. the minimum distance between the ends of the anti-removal ridges 22 and 23 when the connection ends 12 and 13 are against each other for closing the rim 1 1.
  • the direction X extends at an angle CI of +10° with respect to an indicative reference horizontal direction X2, whereas the direction XI extends at an angle C2 of
  • the hook element 18 consists of an annular member, which is made of an at least partially elastically deformable plastic material.
  • Such annular elastically deformable plastic member comprises said two portions 16 and 17, which are substantially cylindrical with parallel axes, and are joined together by two substantially flat, elastically deformable second portions 26 and 27.
  • hook element 18 are formed as one piece by molding of a plastic material.
  • the hook element 18 shall be intended to be possibly made of metal materials, or partly of metal and partly of plastic, as well as other similar or equivalent materials.
  • a first cylindrical portion 16 is introduced into a first opening 14, the two connection ends 12 and 13 of the rim 1 1 are driven toward each other, as shown in Figure 3, and then the hook element 18 is pulled for the second cylindrical portion 17 to reach beyond the corresponding anti-removal ridge 23 and to fit into the second opening 15, as shown in Figure 4.
  • the pull exerted by the flat portions 26 and 27 on the cylindrical portions 16 and 17 causes the connection ends 12 and 13 of the rim 1 1 to close and lock the lens in the rim.
  • the invention provides a device for closing a frame rim that is not less effective than the screw arrangement, while affording quicker closing and opening, due to the lack of threaded coupling parts.
  • the invention provides a closing device that can be used with eyeglasses made of metal, plastic and composite materials, and with both sunglasses and prescription glasses.
  • the invention provides a closing device that can be also handled with bare hands, without using particular equipment.
  • the invention provides a device for closing a lens rim of an eyeglass frame that can be manufactured using known systems and technologies, and at low costs.
  • any particular material, size and shape may be used, as needed and according to the state of the art.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

The present invention relates to a device (10) for closing a lens rim (11) of an eyeglass frame, said rim (1 1) being split at an area thereof with the connection ends (12, 13) being adapted to be spaced from each other to receive a lens in said rim. Each of the connection ends (12, 13) is formed with an opening (14, 15) for receiving a corresponding portion (16, 17) of a hook element (18), which is adapted to press together the facing end surfaces (19, 20) of the connection ends (12, 13).

Description

Title: "A device for closing a lens rim of an eyeglass frame"
DESCRIPTION
The present invention relates to a device for closing a lens rim of an eyeglass frame.
At present, lenses are typically secured to lens rims of eyeglass frames using a lock joint, which is formed by a peripheral rib defined on the lens edge, which rib is designed for snap-fit into a corresponding groove defined on the inner face of the corresponding lens rim of the frame.
With this particularly inexpensive locking arrangement, during lens mounting, the lens is elastically deformed to be force fitted into the rim; such forced deformation of the lens shall be performed with the utmost care to avoid damages to the lens.
Furthermore, the quality of the lock depends on the quality of the lens and rim finishes, and even a minor dimensional error might affect the effectiveness of the lock.
Another common arrangement for locking a lens in a frame rim is based on a lateral split defined on the rim, where two laterally projecting portions are defined at the connection ends of the rim, having holes in a direction substantially tangent to the outer profile of the frame rim, for receiving a screw designed to extend through the first of said projecting portions with holes, and to screw into the mating threaded hole in the other.
While this arrangement is widespread and appreciated, it still requires frames to be formed with split rims, and with projecting portions that may have a low visual impact. Furthermore, the screw lock requires an inconvenient screw tightening step for clamping together the two projecting portions, and due to impacts and vibrations, the screw is subject to deformation and loosening, thereby affecting the stability of the lens lock.
The purpose of the present invention is to provide a device for closing a lens rim of an eyeglass frame that can obviate the above prior art systems.
Within this purpose, one object of the invention is to provide a device for closing a frame rim that is not less effective than the screw arrangement, while providing a quicker opening and closing function.
Another object of the invention is to provide a closing device that can be used in eyeglasses made of metal, plastic and composite materials, and in both sunglasses and prescription glasses.
A further object of the invention is to provide a closing device that can be also handled with bare hands, without using particular equipment.
Another important object of the invention is to provide a device for closing a lens rim of an eyeglass frame that can be manufactured with prior art plants and technologies, and at low costs.
The above purpose and these and other objects, as better explained hereafter, are fulfilled by a device for closing a lens rim of an eyeglass frame, said rim being split at a portion thereof, and with the connection ends adapted to be opened apart for receiving a lens in said rim, which is characterized in that each of said connection ends is formed with an opening for receiving a corresponding portion of a hook element, which is adapted to press together the facing end surfaces of the connection ends.
Further characteristics and advantages of the invention will appear more clearly from the description of a preferred, non exclusive embodiment of the device of the invention, which is shown by way of illustration and without limitation in the annexed drawings, in which:
- Figure 1 shows an open frame rum which is designed to be closed by a device of the invention;
- Figure 2 is a perspective view of the hook element of the device of the invention;
- Figures 3 and 4 are schematic and partially sectional views of two successive steps for closing the device of the invention;
- Figure 5 is an exemplary view of a part of the frame that carries a device for closing a lens rim of the invention.
Referring to the above figures, a device for closing a lens rim of an eyeglass frame according to the invention is generally referenced 10.
In such device 10 of the invention, the lens rim 1 1 is split at one area, with the connection ends 12 and 13 adapted to be spaced apart for receiving a lens in said rim 1 1 , as shown in Figure 1.
This device 10 is characterized in that an opening 14 and 15 is defined on each of the connection ends 12 and 13 respectively, and is adapted to receive a corresponding portion 16 or 17 of a hook element 18, which is adapted to press the facing end surfaces, 19 and 20 respectively, of the connection ends 12 and 13 against each other.
In the embodiment of the invention as described herein by way of example and without limitation to the invention, each of the openings 14 and 15 is given by a notch defined on the outer side edge of the corresponding connection end 12 and 13 and extending into the rim 1 1, i.e. towards the eyeglass lens seat. Each of said openings 14 and 15 has a shape that defines an anti-removal ridge, 22 and 23 respectively, which is designed to prevent accidental release of the corresponding portion 16 and 17 of the hook element 18 when the device 10 is closed.
In this exemplary embodiment of the invention, the openings 14 and 15 extend into the rim 11 each in one direction X and XI respectively, substantially converging with the direction of extension of the other opening.
Thus, when the portions 16 and 17 of the hook element 18 are located in their respective openings 14 and 15, the minimum distance A between such two portions 16 and 17 is smaller than the distance B between the access edges of such openings 14 and 15, i.e. the minimum distance between the ends of the anti-removal ridges 22 and 23 when the connection ends 12 and 13 are against each other for closing the rim 1 1.
The direction X extends at an angle CI of +10° with respect to an indicative reference horizontal direction X2, whereas the direction XI extends at an angle C2 of
-10° with respect to the same horizontal direction X2.
In this non-limiting exemplary embodiment of the invention, the hook element 18 consists of an annular member, which is made of an at least partially elastically deformable plastic material.
Such annular elastically deformable plastic member comprises said two portions 16 and 17, which are substantially cylindrical with parallel axes, and are joined together by two substantially flat, elastically deformable second portions 26 and 27.
These substantially cylindrical portions 16 and 17 and flat portions 26 and 27 of said hook element 18 are formed as one piece by molding of a plastic material. The hook element 18 shall be intended to be possibly made of metal materials, or partly of metal and partly of plastic, as well as other similar or equivalent materials.
The use of the device 10 of the invention is well exemplified in Figures 3 and 4.
A first cylindrical portion 16 is introduced into a first opening 14, the two connection ends 12 and 13 of the rim 1 1 are driven toward each other, as shown in Figure 3, and then the hook element 18 is pulled for the second cylindrical portion 17 to reach beyond the corresponding anti-removal ridge 23 and to fit into the second opening 15, as shown in Figure 4.
The pull exerted by the flat portions 26 and 27 on the cylindrical portions 16 and 17 causes the connection ends 12 and 13 of the rim 1 1 to close and lock the lens in the rim.
Therefore, the invention was actually found to fulfill the intended purpose and objects.
Particularly, the invention provides a device for closing a frame rim that is not less effective than the screw arrangement, while affording quicker closing and opening, due to the lack of threaded coupling parts.
Moreover, the invention provides a closing device that can be used with eyeglasses made of metal, plastic and composite materials, and with both sunglasses and prescription glasses.
Furthermore, the invention provides a closing device that can be also handled with bare hands, without using particular equipment.
Finally, the invention provides a device for closing a lens rim of an eyeglass frame that can be manufactured using known systems and technologies, and at low costs.
The invention so conceived is susceptible to a number of changes and variants within the inventive concept; furthermore, all the details may be replaced by other technically equivalent parts.
In practical implementation, any particular material, size and shape may be used, as needed and according to the state of the art.
Where the characteristics and techniques as mentioned in any claim are followed by reference marks, such marks will be only used for improved intelligibility of the claims and, as a result, such reference marks shall have no limiting effect on the interpretation of each element that has been identified as an example by such reference marks.

Claims

1. A device (10) for closing a lens rim (1 1) of an eyeglass frame, said rim (11) being split at an area thereof and having the connection ends (12, 13) adapted to be spaced from each other to receive a lens in said rim, an opening (14, 15) being formed on each of said connection ends (12, 13), for receiving a corresponding portion (16, 17) of a hook element (18), which is adapted to press together the facing end surfaces (19, 20) of the connection ends (12, 13), characterized in that:
- each of said openings (14, 15) consists of a notch defined on the outer side edge of the corresponding connection end (12, 13) and extending into the rim (1 1), - said hook element (18) consists of an annular member, which is made of an at least partially elastically deformable plastic material,
- said annular member comprises said two portions (16, 17), said two portions (17, 17) being substantially cylindrical, having parallel axes and being joined together by two substantially flat, elastically deformable second portions (26, 27).
2. A device (10) as claimed in claim 1, wherein each of said openings (14, 15) has a shape that defines an anti-removal ridge (22, 23), which is designed to prevent accidental release of the corresponding portion (16, 17) of the hook element (18) when the device is closed.
3. A device (10) as claimed in claim 1, wherein said openings (14, 15) extend into the rim (1 1), each in a direction (X, XI) substantially converging with the direction of extension of the other opening, so that, when said two portions (16,17) are located in their respective openings (14, 15) and the connection ends (12, 13) are against each other for closing the rim (11), the minimum distance between said two portions (16, 17) is smaller than the minimum distance between the ends of the anti- removal ridges (22, 23).
4. A device as claimed in any of claims 1 to 3, wherein said substantially cylindrical portions (16, 17) and said flat portions (26, 27) of said hook element (18) are formed as one piece.
EP11729686.3A 2010-05-31 2011-05-12 A device for closing a lens rim of an eyeglass frame Withdrawn EP2577383A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000172A ITPD20100172A1 (en) 2010-05-31 2010-05-31 DEVICE FOR THE CLOSING OF A LENS RING HOLDER OF A FRAME FOR GLASSES
PCT/IB2011/001034 WO2011151688A1 (en) 2010-05-31 2011-05-12 A device for closing a lens rim of an eyeglass frame

Publications (1)

Publication Number Publication Date
EP2577383A1 true EP2577383A1 (en) 2013-04-10

Family

ID=43234219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11729686.3A Withdrawn EP2577383A1 (en) 2010-05-31 2011-05-12 A device for closing a lens rim of an eyeglass frame

Country Status (3)

Country Link
EP (1) EP2577383A1 (en)
IT (1) ITPD20100172A1 (en)
WO (1) WO2011151688A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128067A1 (en) * 2014-02-28 2015-09-03 Camillo Rattaro Eyeglass frame made in a single piece fitted with a fixing device for a pair of lenses
AT522420B1 (en) * 2019-04-10 2020-12-15 Gerald Lasnik Space-saving glasses frame for reading glasses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2031841A5 (en) * 1969-02-10 1970-11-20 Rouille Georges
FR2603711B1 (en) * 1986-09-08 1989-08-25 Essilor Int FACE FOR EYEWEAR FRAME
DE3741358A1 (en) * 1987-12-07 1989-06-15 Karl Weber Spectacles
AT4100U1 (en) * 1995-01-17 2001-01-25 Lecon Tech Konstruktionen Und EYEWEAR FRAME FOR TOOL-FREE INTERCHANGEABLE GLASSES
IT241875Y1 (en) * 1996-08-02 2001-05-17 Celes Optical EYEWEAR STRUCTURE
JPH10111481A (en) * 1996-10-08 1998-04-28 Mitsuo Kobayashi Connecting structure of spectacle parts
TW200947015A (en) * 2008-05-09 2009-11-16 Qef Design Corp Fast detachable eyeglasses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011151688A1 *

Also Published As

Publication number Publication date
WO2011151688A8 (en) 2012-12-27
ITPD20100172A1 (en) 2011-12-01
WO2011151688A1 (en) 2011-12-08

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