GB2181569A - Improvements relating to spectacle frames and their manufacture - Google Patents

Improvements relating to spectacle frames and their manufacture Download PDF

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Publication number
GB2181569A
GB2181569A GB08623602A GB8623602A GB2181569A GB 2181569 A GB2181569 A GB 2181569A GB 08623602 A GB08623602 A GB 08623602A GB 8623602 A GB8623602 A GB 8623602A GB 2181569 A GB2181569 A GB 2181569A
Authority
GB
United Kingdom
Prior art keywords
front
spectacle frame
hinge
couplings
sides
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Withdrawn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
GB08623602A
Other versions
GB8623602D0 (en
Inventor
Neil Brosgill
Original Assignee
Neil Brosgill
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
Priority to GB858524242A priority Critical patent/GB8524242D0/en
Application filed by Neil Brosgill filed Critical Neil Brosgill
Publication of GB8623602D0 publication Critical patent/GB8623602D0/en
Publication of GB2181569A publication Critical patent/GB2181569A/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • G02C5/22Hinges
    • G02C5/2209Pivot bearings and hinge bolts other than screws
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • G02C5/008Spectacles frames characterized by their material, material structure and material properties
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • G02C5/22Hinges
    • G02C5/2218Resilient hinges
    • G02C5/2254Resilient hinges comprising elastic means other than coil spring
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • G02C5/22Hinges
    • G02C5/2263Composite hinges, e.g. for varying the inclination of the lenses
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/16Frame or frame portions made from rubber

Abstract

A spectacle frame comprises a plastic material front 12 with integral plastic coupling means 40,42 to which the sides 43 are adapted to be coupled. One part of a hinge 42 is formed on the coupling means and the other part of the hinge 44 on the side 43. The hinge may be completed either with (see Figures 59) or without (see Figures 10 and 11) a third component in the form of a pin 22. The sides 43 may be made of plastics or metal. <IMAGE>

Description

SPECIFICATION Improvements relating to spectacle frames and their manufacture This invention relates to spectacle frames and their manufacture, and has as its objective to provide an improved, inexpensive spectacle frame which will be abletofunctionsimilarlytotheconventional more expensive spectacle frames.

Aspectacle frame comprises essentially a front and a pair of sides. The front defines a pair of lens holding sections, whilst the sides extend from the front and in use locate behind the ears ofthe user.

When the spectacles are in use, the lenses overlie the eyes of the user and lie in a substantially vertical plane, whilstthe sides are connected tothe respect- ive ends of the front and extend rearwardly and sub stantially horizontally.

The expressions "horizontal" and "vertical" as used herein therefore refer to the spectacles when in the disposition on a user's face, and the expressions "upper" and "lower" apply in similarfashion.

At present, the majority of spectacle frames are moulded in plastics material, although some ofthe plastics frames are fabricated by machining and fin- ishing, but in all cases metal hinges are used for coupling the sides to the front, and such hingescom- prise interfitting horizontal lugs and vertical apertures therein, the apertures being aligned and receiving a pivot defining member such as a metal screw.

The metal lugs are in some cases formed integrally with metallic portions which are embedded in the plastics ofthe front and sides, whilst in other cases the lugs are connected to the fronts and sides of the spectacle frames by means of metallic rivets.

These hinge formations make the spectacle frames expensive and difficu It to manufacture. Furthermore, they do form a source of difficulty as concerns wear and tear insofar as they tend to form weak points in the spectacle structure.

Also, when, as is frequently the case, spectacle sides have to be adjusted, to be inclined slightly more upwardly or downwardly from the horizontal, this is done by straining the hinge lugs, and such lugs do not present the best method of side adjustment.

The present invention is concerned with a modified design of the connection between the front and sides, and in accordance with the present invention the front is in moulded plastics material and is formed integrally with plastic material coupling means for coupling the front to the legs.

With this arrangement, it is possibleto provide the legs in a metallic material, and with integral hinges, so that the coupling of the legs and frame can be by means of a simple push-fitting action, but it is prefer redthatthecoupling meanswill provide part of the hinge, and typically may be a horizontal lug with an aperture therein which fits between a pair of apertures in the corresponding side at the coupling end thereof, so that a pin or plug can be passed between aligned apertures in the lugs in the side and frame to form the hinge between the side and frame.

The pin may be a conventional screw as used currently in connection with spectacle frame hinges.

The sides may be moulded in plastics material which can be the same as or different from the plastics material ofthe front.

The coupling means may be at any location verticallyoftheframe i.e. it may be atthetop or bottom of the frame or centrally thereof, and the sides would be shaped accordingly.

Considerable advantage is achieved in the method of manufacturing frames according to the invention in that when the front is injection moulded, the mould can be provided with an insert two define the coupling means, and such insert can be used with moulds of different shape defining different spect acle front forms. It is to be mentioned that the spectaclefronts changewith changes of style and colour, and therefore the utilisation of a reusable insertfor the moulds presents considerable advantage in production.

The tongue provided as part of the coupling means may be mounted on a boss or bush forming another partofthe coupling means, and said boss or bush,or the tongue or lug may form the means enabling the adjustment ofthe side of the spectacle frame angularly relative to the horizontal to adjust the spectaclesto suit the users.

Embodiments of the present invention will now be described by way of example, with reference to the accompanying drawings, wherein Figure 1 is a front view of a conventionai pair of spectacles; Figure2 is a side view of the spectacles shown in Figure 1; Figure 3 is a plan view ofthe spectacles shown in Figure 1; Figure 4 is an enlarged pian view of the detail ringed in Figure 3; Figure 5 is an exploded perspective view showing the components ofthe hinge shown in Figure 4; Figure 6is an exploded view showing a hinge arrangement according to one embodiment ofthe present invention; Figures 7,8 and 9 are perspective views of another embodiment of the invention showing hinge details from different perspective angles;; Figure 10is detail of a hinge according to a further embodimentofthe invention; and Figure 11 is detail of a hinge according toyetanother embodiment ofthe invention.

Referring to the drawings, and firstly to Figures 1 to 5, in Figure 1 is shown a conventional pair of spectacles 10 comprising a moulded front 12 provided with two lens receiving apertures 14. Atthe ends ofthe front 10 are moulded formations 1 to which are hingedly connected sides 18, the sides 18 being of a form illustrated clearly in Figures 2 and 3.

For the fitting of spectacles such as illustrated in Figure 1 to different head sizes, it is frequently neces- saryto bend or deflect the sides 18 horizontally and vertically as shown in dotted lines and chain dotted lines by references A and B towards and awayfrom the sides of the head and verticallyto raise or lower the lenses in relation to the user's eyes. The deflecting ofthe sides 18 as illustrated in Figure 2 places particular stress on the hinges indicated by reference 20 in Figure 3, andto achievethe adjustmentAIB as shown in Figure 3 is in fact necessary to bend ordis tortthesides 18.

The hinge arrangements 20 are a rathercomplicated construction as shown in Figures 4 and 5. The hinge pivot is defined by screw 22 and a pair of metalliccomponents 24 and 25,the component24comprising a block 26 which has waisted sides and the block 26 is embedded in the formation 16 as shown in Figure 4 during the moulding of the front of the spect- acles. Integral with block 26 is a horizontal lug 28 having an aperture 30 for receiving the screw 22.

The component 25 comprises a pair of spaced horizontal lugs 27 and 29 provided with aligned apertures 31 and 33, the aperture 33 being threaded to receive the threads 34 of the screw 22. The component 25 is provided with a plate portion 36 which is secured as shown in Figure 4to a metallic strip or reinforcing member38 embedded in theside 18 during the moulding thereof. The fixing ofthe plate 36 to the strip 38 may be in anysuitable manner.

To complete the hinge, the lug 28 is inserted between lugs 27 and 29 so that the apertures 31,30 and 33 become aligned when the pin 22 is inserted therein and secured thereto by engagement with threads 34 with a threaded bore 33.

Figures4and 5 show only one embodiment of a conventional hinge arrangement involving metallic hinge components, but there are a number of such hinge arrangements utilised in commercially known spectacles.

In accordance with the present invention it is proposed that in the moulding of the front of the spectacles plastic coupling means are formed integrally with the front ofthe spectacles thereby eliminating the need for at least the component 24 as shown in Figure 5.

Figure 6 shows clearly one embodiment of the invention, wherein it will be seen that the integral coupling means comprises a boss 40 with an integral horizontal lug 42 which performs the same function as lug 28 of the hinge arrangement shown in Figure SIn this embodiment the side 43 is a one-piece moulded plastics material component, and is provided with integral lugs 44 and 46 to perform the same function as the lugs 27 and 29. It will be appreciated that the side 43 and front are connected by inserting the lug 42 between the lugs 44 and 46 and by inserting an appropriate pivot pin which may be a screw such as screw 22, or in fact a plastics material plug which is press-fitted into the aligned apertures in lugs42, and 46.The side 43 and boss 40 are formed sothatthe side can pivot between the normal closed position and the normal in use position as shown in Figure 3, but not beyond this position.

It is not necessarythat plastics material sides 43 be utilised. The sides could indeed be metallic or em bodyametallichingecomponentforcouplingtothe lug 42.

Figures 7,8 and 9 show a slightly modified but self evident arrangement, which is essentially similarto that shown in Figure 6.

In the arrangement shown in Figure 10, the pair of lugs are provided on the front of the frame, whilst the single lug is on the side, but again the principle ofthe invention that an integral coupling formation is provided on the front ofthe frame is present.

In the arrangement shown in Figure 11 the formation 40 is provided with a coupling block 60 having a vertical slot 62 therein, whilst the corresponding side 64 has a slot 66 which is horizontal to receive the plug 60, and intheslot66isavertical pin 68 which isadapted to snap into the slot 62 in orderto couplethe side and front and also to form the hinge pivot axis between the side and front.

In another arrangement, a horizontal plug or pin formed on the front could be arranged to plug into a horizontal hole in the side, the plug or pin either being of sufficient resiliency to form a hinge between the side and front, or the side embodying a separate hinge arrangement.

The advantage offorming the coupling arrangement integrallywith the front, at each side ofthe frame it should be mentioned, providestheadvantage that in the manufacture of spectacle frame fronts, a single coupling formation mould insert can be provided at each side ofthe mould, and that part ofthe mould defining the shape ofthe front such rounding the lens apertures can be varied whereby the altering of the design ofthe front of the spectacles can be effected with minimum inconvenience and it will not be necessary to change the design ofthe mould inserts which define the front couplings.

These couplings can also be designed so thatfor example the bush 40 can be adjusted in angularity by applying heat and force to give the adjustmentA/B indicated in Figures 2 and 3.

The spectacles according to the present invention can be constructed from conventional plastics material, and it may be possible to select and design the moulding so that the inherent springyness of the plastics material will form spring loading on the sides of the head of the user thereby keeping the spectacles firmly in place.

Claims (7)

1. A spectacle frame front which is moulded in plastics and is formed integrallywith plastics material coupling means for coupling thefrontto the legs.
2. A spectacle frame front according to Claim 1, wherein the couplings define hinge parts, the other parts of the hinges being on the legs to be connected thereto.
3. A spectacle frame front according to Claim 2, wherein said hinge parts of the couplings comprise pairs of lugs with apertures therein for reception of a tongue with a hole therein so that the apertures and hole can receive a pin or screw.
4. A spectacle frame front according to Claims 1, 2 or 3, wherein the couplings are connected to the remainder of the front by being in the form of inserts placed in a mould defining the front and which is filled with plastics material to form said front.
5. A spectacle frame front substantially as hereinbefore described with reference to any of the embodiments illustrated in the accompanying drawings.
6. Spectacles comprising a spectacleframefront according to any preceding claims and sides coupled to said couplings.
7. A method of making spectacle frame fronts wherein the front is injection moulded and the mould is provided with inserts to define said coupling means, the inserts being placed in the mould priorto the moulding operation.
GB08623602A 1985-10-02 1986-10-01 Improvements relating to spectacle frames and their manufacture Withdrawn GB2181569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB858524242A GB8524242D0 (en) 1985-10-02 1985-10-02 Spectacle frames

Publications (2)

Publication Number Publication Date
GB8623602D0 GB8623602D0 (en) 1986-11-05
GB2181569A true GB2181569A (en) 1987-04-23

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB858524242A Pending GB8524242D0 (en) 1985-10-02 1985-10-02 Spectacle frames
GB08623602A Withdrawn GB2181569A (en) 1985-10-02 1986-10-01 Improvements relating to spectacle frames and their manufacture

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858524242A Pending GB8524242D0 (en) 1985-10-02 1985-10-02 Spectacle frames

Country Status (1)

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GB (2) GB8524242D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721306C2 (en) * 1997-05-21 2002-06-20 Hemaris Gmbh Chur Joint for spectacles

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB968116A (en) * 1961-11-06 1964-08-26 Michael H Birch Designs Ltd Improvements in or relating to spectacle frames
GB1108209A (en) * 1966-12-17 1968-04-03 Stewart Pactor Improved spectacle frame
GB1121551A (en) * 1965-05-12 1968-07-31 Max Feder Improvements in spectacle frame joints
GB1212286A (en) * 1967-09-29 1970-11-11 Friedrich Baumgaertner Spectacle hinge elements
GB1213784A (en) * 1968-03-09 1970-11-25 Friedrich Baumgartner Spectacle-frame hinge parts
US3820880A (en) * 1973-03-19 1974-06-28 M Burke Adjustable hinge structure for eyeglasses
US4018516A (en) * 1975-06-10 1977-04-19 Tohyama Hideaki Spectacle frame
US4153347A (en) * 1977-06-08 1979-05-08 Myer C Randolph Eyeglass frames with removable, interchangeable lenses, rims and temple pieces
GB2026717A (en) * 1978-07-13 1980-02-06 Obe Werk Kg Hinge members for embedding in spectacle frames
GB1561026A (en) * 1976-07-15 1980-02-13 Obe Werk Kg Mould-in hinge member for spectacle rims
GB2029042A (en) * 1978-08-29 1980-03-12 Atkins D Improved hinge for spectacles
EP0027415A1 (en) * 1979-10-16 1981-04-22 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Spectacle frame
EP0067110A2 (en) * 1981-06-03 1982-12-15 Veuve Henri CHEVASSUS Société Anonyme: Spectacle frame hinges

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB968116A (en) * 1961-11-06 1964-08-26 Michael H Birch Designs Ltd Improvements in or relating to spectacle frames
GB1121551A (en) * 1965-05-12 1968-07-31 Max Feder Improvements in spectacle frame joints
GB1108209A (en) * 1966-12-17 1968-04-03 Stewart Pactor Improved spectacle frame
GB1212286A (en) * 1967-09-29 1970-11-11 Friedrich Baumgaertner Spectacle hinge elements
GB1213784A (en) * 1968-03-09 1970-11-25 Friedrich Baumgartner Spectacle-frame hinge parts
US3820880A (en) * 1973-03-19 1974-06-28 M Burke Adjustable hinge structure for eyeglasses
US4018516A (en) * 1975-06-10 1977-04-19 Tohyama Hideaki Spectacle frame
GB1561026A (en) * 1976-07-15 1980-02-13 Obe Werk Kg Mould-in hinge member for spectacle rims
US4153347A (en) * 1977-06-08 1979-05-08 Myer C Randolph Eyeglass frames with removable, interchangeable lenses, rims and temple pieces
GB2026717A (en) * 1978-07-13 1980-02-06 Obe Werk Kg Hinge members for embedding in spectacle frames
GB2029042A (en) * 1978-08-29 1980-03-12 Atkins D Improved hinge for spectacles
EP0027415A1 (en) * 1979-10-16 1981-04-22 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Spectacle frame
EP0067110A2 (en) * 1981-06-03 1982-12-15 Veuve Henri CHEVASSUS Société Anonyme: Spectacle frame hinges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721306C2 (en) * 1997-05-21 2002-06-20 Hemaris Gmbh Chur Joint for spectacles

Also Published As

Publication number Publication date
GB8623602D0 (en) 1986-11-05
GB8524242D0 (en) 1985-11-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)