CN106405866A - Spring hinges for plastic frames - Google Patents

Abstract

A spring hinge for an eyeglass plastic frame includes a first articulating element and a second hinge element which are interconnected and rotatable by means of a hinge pin. The first articulating element comprises a movable male member which is easily slid into a base of the rod and further comprises a housing into the base and is constituted by a guide portion provided with a first longitudinal cavity And an anchoring portion which is located behind the guide portion and which is provided with an anchoring means which is easily secured to the base of the rod. In addition, the first resilient member further comprises an elastic member located in the second longitudinal cavity of the cartridge anchoring portion and interposed between a first abutment member connected to the rod-like portion and a second abutment member connected to the anchoring portion So as to move the head of the male device with respect to the first end face of the cartridge guide portion.

Description

Spring hinge for glasses plastic frame

Range of application

The preamble being required according to main independent patent, the present invention relates to a spring hinge being used for glasses plastic frame Chain.

Elastic hinge is conducive in the production be useful in glasses plastics framework, particularly the production process of injection molding framework In, in this class framework, hinge is substantially drawn in and has been hidden in plastic material.

Therefore, hinge of the present invention is related to produce the eyeglass industry industry of glasses and its accessory and eyeglasses assembly.

Form of Technique

In spectacles industry traditionally, hinge is used for connecting the rod to frame front.

Each hinge is generally made up of two hinged members, and they are mutually pivotable, and respectively, the first element is fixed on bar On, the second element is fixed on lateral parts () of frame front in the term of this area also referred to as " nose ".

Functionally, this hinge allows bar to rotate between a closed position and an open position, cuts with scissors in closed position Chain is drawn in the front portion of glasses, assumes a position substantially at a right angle with front portion in open position, to be suitable for using Family shape of face.

Particularly, the present invention relates to so-called " elastic " hinge, or it is related to due to obtaining one by being connected to The opposite force that the spring assembly of hinge applies is it is possible to move to the hinge between above-mentioned position by bar.

This elastic device can also allow bar to realize a position in addition to open position the stable shape in a closing Keep the bar being aggregating in behind under state.

Elastic hinge makes eyeglasses-wearing be easier, because bar can move to and exceeding above-mentioned open position and then released Put, so the head of user only receives a slight pressure during wearing spectacles.This slight pressure can by bar firmly Be fixed on user's head it is ensured that under multiple application conditions preferably wearing spectacles.

Elastic hinge is described in such as patent EP 340161, and the hinged member being wherein connected with bar includes being contained in One of one contained structure elastic device, and be furnished with one be embedded in bar metal-cored.One major defect of this hinge It is significantly to expose, so slightly have impact on the attractive in appearance of glasses.

In order to improve the outward appearance of hinge, the elastic hinge of plastics framework is developed, such as in patent EP It is described in 2009484 and IT BL2005A000020, elastic device is fully embedded in plastic material wherein, thus not Influence whether that the integration of glasses is attractive in appearance.

Elastic device be comprised in one in addition to front portion each face all substantially in the metal case of closing, expose from front portion The unique head of elastic device male element, this head is provided with an eyelet for being connected with female element of the second hinged member.More In detail, male element has one and is fixed on head cervical region below and a handle being fixed on cervical region below, and is wrapped in It is usually located at a drift in box body (to be for example arranged on around handle by one and kept by a ledge of tray interior Locking member) and handle free end on helical spring between an enlarged.

The major defect of these described hinges is related to a fact, and that is, box body has encased male element and spring completely thus limiting Determine the guide rail of male element cervical region.Therefore, box body presents a sizable capacity, and is fully embedded the plastic matrix in bar In, define corresponding size less substantially thus not impact is attractive in appearance.

This defect be related to hinge beyond part, such as in patent WO 2012035382, IT UD Be described in 2008A000102, US7938534 and DE 102013202947, wherein in order to by the elastic device of hinge to glasses The impact of lines reduces minimum, and this elastic device is slideably inserted in directly obtain in bar or the plastic material of nose suitable When bearing in, therefore reduce the overall dimensions of hinge.

But, the major defect that these hinges have is to slide in the bearing that elastic device directly obtains in plastic bar, And it is thus determined that a metal/plastic couples, this coupling does not allow the slip of this device to have a guiding effectively with optimization.

Another of these hinges disadvantage is that substantial amounts of part and a complicated assembling, in particular for being used for Elastic mechanism is locked to the bolt within glasses bar.

Additionally, in the hinge solution of patent IT UD2008A000102 and WO 2012142680 description, elastic machine System also comprises a bolt being wrapped in a helical spring, is directly tightened with the end of thread on bar or with one by pin The pin being fixed on bar tightens (according to the way of realization of patent IT UD2008A000102) indirectly.According to above-mentioned hinge solution party Case, male element is slided with respect to the bolt being fixed on bar, is in reverse to it and is subject to the effect of spring near bolt from pedestal Output slide.

Although these hinges can reduce the size of the first hinged member being connected on bar, it is not provided that enough machines Tool sealing ensures, because not being provided that enough sealing, especially when elastic bending mechanism by the screw flight on bar It is subject to during during maximum pulling force, bar is in super open motion.

In patent BL2005A000020 as previously mentioned and EP2009484B1 and patent WO2006053983A1 and WO In hinge described in 2005008317, elastic device is not directly slided into and is contacted with bar, but as described above, slides into slotting Enter in one of bar box body, and this elastic device is included therein.Box body as the sliding guidance of elastic device, by gold Belong to material and make to guarantee the coupling of metal/metal, it is to avoid above-mentioned friction problem and in the guiding of other hinges precision little Problem.

But other hinges of these known types have the shortcomings that to need box body is carried out with internal processing, such as hole and draw Sell it is necessary to very accurately, to guarantee an optimized guiding for the slip of elastic device.

But these processing are very complicated, because the sliding support realizing the elastic device in box body is blind hole, These processing that thus be accordingly used in removed material are technically difficult to, for example, be used for forming burr, can keep locking Closing bearing in and clearly lead to elastic hinge to go wrong in normal operating.

Invention is introduced

In this case, general object of the present invention, precisely in order to eliminating above-mentioned technological deficiency, and provides one kind The spring hinge of the glasses plastic frame easily producing.

Another purpose of this invention is, using an elastic hinge being used for glasses plastic frame, to arrange an energy Enough the first hinged members being best attached on the plastic material of glasses bar.

Another purpose of this invention is using an elastic hinge being used for glasses plastic frame, one tool of setting There is the first hinged member of a male element being easy to roll in the best way in tray interior.

Another purpose of this invention is using an elastic hinge being used for glasses plastic frame, setting above-mentioned the The durable male element of one particularly compact machinery of one hinged member.

Another purpose of this invention is using an elastic hinge being used for glasses plastic frame, glasses from One the first hinged member being easily obtained is provided in dynamic production process.

Another purpose of this invention is using an elastic hinge being used for glasses plastic frame, is first hinged The spring offer one of element is highly protective, particularly avoids spring during this first hinged member is inserted into the stage in bar Deformation or damage risk.

Another purpose of this invention is using an elastic hinge being used for glasses plastic frame, wherein first The spring of hinged member will not be seen, even if therefore also not interfering with the aesthetic property of glasses under transparent plastic frame.

Another purpose of this invention is using a bar, reliable in operation.

These purposes and other purposes are also fully reached by the elastic hinge (i.e. the present invention) of glasses plastic frame, It include first hinged member being mechanically connected in a pedestal on first plastic components of glasses and At least one is mechanically connected to the second hinged member on a second component of glasses, particularly, the first hinged member It is made up of a bar, the second hinged member is made up of a front portion and is rotationally connected to first hinged yuan by a joint pin On part；First hinged member includes：One movable male element, for sliding in the pedestal of bar, and has along one substantially On parallel to bar axle longitudinal axiss extension, be furthermore provided with：One head, can extend at least partly into outside rod base Face, for being rotationally connected to the second hinged member by pin；One prismatic cervical region, extends back from head；One Bar-like portion, from the neck extension with respect to head out；

Based on the design of the present invention, its feature of elastic hinge for glasses plastic frame is that the first hinged member also wraps Include：Box body in one loading bearing simultaneously includes：At least one is furnished with the leader in first longitudinal direction chamber, and this chamber is slided by guiding Enter male element neck interior dynamicly and extend between first end face and second end face, the head of male element is from first end face Prominent；At least one is arranged on the anchor portion after leader, is furnished with：One outer surface, this outer surface is provided with and is easy to For the anchoring device being fixed in rod base, and a second longitudinal direction chamber being arranged on after first longitudinal direction chamber, slidably enter Enter the inside of male element bar-like portion and extend between the 3rd end face and the 4th end face, the second end of impact leader Face；One flexible member being arranged in box body anchor portion second longitudinal direction chamber, parallel to the bar-like portion of male element, and is arranged Between first abutment element and the second abutment element of a connection anchor portion of a connection bar-like portion, so that towards The first end face of box body leader promotes the head of male element.

Drawing is sketched

According to above-mentioned purpose, the technical characterstic of the present invention is high-visible from the content of following claims, and its advantage is big Cause has been embodied in detailed description below, and with drawing so that reference, these drawings illustrate and some are used purely for example And the way of realization not defined, wherein：

- Fig. 1 illustrates an elastic hinge for glasses plastic frame, and this hinge is based on and is connected to bar and frame front The present invention, only part display and bar is in an open position；

- Fig. 2 illustrates Fig. 1 hinge and bar and front portion along the sectional view of a fore-and-aft plane and the view of hinge；

- Fig. 3 illustrates the view of Fig. 1 hinge and bar sectional view along a transverse plane and hinge；

- Fig. 4 illustrates the hinge of Fig. 1, the part that show only bar and the hinged unit of public affairs disassembling from bar Part；

- Fig. 5 and Fig. 6 illustrates hinge, is set in advance in the present invention on a frame along the one of bar extended axis The sectional view of individual horizontal plane, anterior and bar show only a part, and bar is respectively at open position and exceeds open position；

- Fig. 7 illustrates a perspective view of the hinge being not installed on frame according to the present invention；

- Fig. 8 illustrates a perspective view of the hinge according to the present invention with two hinged members separated from one another；

- Fig. 9 illustrates the perspective view of the first hinged member according to hinge of the present invention；

- Figure 10 illustrates Fig. 9 first hinged member, along the partial side elevation view of the vertical cross-section of bar extended axis；

- Figure 11 illustrates a partial enlargement of the first hinged member in Figure 10 section；

- Figure 12 illustrates a decomposition diagram of the first hinged member；

- Figure 13 and Figure 14 illustrates according to the invention with regard to a leader, an office of hinge first hinged member Two perspective views in portion；

- Figure 15 illustrates a partial front elevation view of first hinged member of Figure 13 and Figure 14；

- Figure 16 illustrates according to the present invention, the section partially along XVI-XVI line of hinge first hinged member of Figure 15 Figure；

- Figure 17 illustrates according to the invention with regard to an anchor portion, a further office of hinge first hinged member One perspective view in portion；

- Figure 18 illustrates a fragmentary sectional view along a transverse plane of Figure 17 first hinged member；

- Figure 19 illustrates a fragmentary sectional view along a fore-and-aft plane of Figure 17 first hinged member；

- Figure 20 illustrates according to realizing version with regard to the first of hinge object of the present invention, and the decomposition of the first hinged member is saturating View；

- Figure 21 illustrates a perspective view in Figure 20 according to the first the first hinged member realizing version realization；

- Figure 22 illustrates a perspective view of the hinge according to the present invention with two hinged members separated from one another, with And realize, according to second, the first hinged member that version is realized；

- Figure 23 illustrate according in the present invention for the 3rd of hinge the realize version realization one of the first hinged member Perspective view；

- Figure 24 illustrates a plan view of Figure 23 first hinged member；

- Figure 25 illustrates an amplification local of Figure 23 first hinged member, is related in two removable section Box body.

The detailed description of one good example

Integrally illustrate the elastic hinge 1 of the glasses plastic frame of the present invention referring to the drawings.

According to the design of the present invention, the purpose of elastic hinge 1 is to realize various frames, that is, include traditional again Including motor type, and it is used for being interconnected to corresponding on a bar 2 of frame nose 3.

The latter will be realized with plastic material, such as nylon, or other are applied to the plastic material of this purpose.This framework is not It is the form of a specific requirement, therefore will be below to its design principle of technical staff's brief description.

In more detail, framework generally by a front portion being used for supporting the eyeglass being connect in the middle of a pair by a bridging and leads to Cross elastic hinge 1 and be pivotably secured to a pair of bar 2 of anterior side and constitute, more precisely, be that elastic hinge is fixed to direction Two lateral parts at glasses rear portion, are referred to as nose 3 in technical term in industry.

Particularly, the hinge 1 of the present invention is elastic, that is, allow bar 2 excess of stroke to open (see Fig. 6), the resilience of elasticity makes Eyeglasses-wearing is comfortable and guarantee preferably to fit with the head of user.

Functionally, due to there is above-mentioned elastic hinge 1, bar 2 is transportable, traditionally can be a closed position (there anterior by drawing glasses in), an open position (there assume a position at a generally normal angle with glasses front portion Put) move (Fig. 6) and a travel position (being there subject to the power beyond open position) between.

Traditionally, elastic hinge 1 includes two hinged members, wherein particularly, is mechanically connected to and moulds positioned at frame The first hinged member 4 in a pedestal 100 on material bar 2 and the second hinged member 5 being mechanically connected to eyeglass frame front.

Then, the first and second hinged members 4 are together with 5 are mutually pivotable by a joint pin 6 on X transverse axis, example As this pin is made up of a bolt.

It is preferably that pedestal 100 is directly realized by during bar 2 injection phase.

Traditionally, the such as second hinged member 5 has one and is furnished with the metallic object of two parallel shoulders 61 and is provided with correspondence Hole be used for inserting pin 6, be fixed on a common bottom and from this bottom develop one or more embedment glasses noses Pin 50 in plastic substrate.

Preferably, the first hinged member 4 is made of metal, and in this specific modification is implemented the second hinged member 5 The plastic material of nose 3 is integrally formed.

In a word, nor stop the second hinged member is set as different from traditional form, plastic material shapes with nose 3 Integral, and it is furnished with two fixation shoulders parallel with glasses nose and these shoulders are integrally formed to the plastics material of nose In material.

According to the present invention, the first hinged member 4 includes a movable male element 40, is furnished with one along parallel to axle 2 Axle Y Longitudinal Extension part, can along axle Y slide until the pedestal 100 of bar 2.

Pedestal 100 is located on the bar longitudinally entering in its plastic matrix, as detailed below by a flexible member 13 from it One front surface 20 starts persistently close or one nose 3 of impact rear surface 30.

Male element 40 is provided with 41, neck portion 42 of a head part and a bar-like portion 43.

In more detail, head 41 extends to the outside of the pedestal 100 of bar 2, and is provided with an eyelet 44, for by pin 6 and the second hinged member 5 coupling rotational.

Cervical region extends back along longitudinal development axle Y from head 41, and forms best prismatic shape, such as one Parallelepiped.

Bar-like portion 43 is from the back side 42A projection of cervical region 42, and embodies on free end 43A, and an enlarged footing 45 is for example It is made up of a bolt head or a pin, be better described below.

According to the basic ideas of the present invention, the first hinged member 4 includes the box body 7 in a loading bar 2 bearing 100, it Define an inside longitudinal chamber at least accommodating above-mentioned cervical region 42 and bar-like portion 43.

One rail sections 70 (being furnished with a first longitudinal direction chamber 80) and grappling one by one are included according to box body 7 of the present invention Part 71 (after being successively set on rail sections 70), and it is furnished with a second longitudinal direction chamber ().It is successively set on first to indulge After 80s to chamber.

This two different parts 70,71 pass through optimal material and manufacturing process acquisition to obtain the function each having And feature.

Under this form, the production technology of this two part 70,71 of box body 7 is easier than conventional situation, wherein box Body 7 is realized with integrated form.

The rolling guide functioning primarily as male element 40 of rail sections 70, and the major function of anchor portion 71 is First hinged member 4 is locked on its fixing plastic bar.

In more detail, leader 70 is received slidably into inside the cervical region 42 of male element 40, and from it Extend between end face 70A and second end face 70B, project the head 41 of male element 40, second end face court from first end face Rest base 100 internal rotating.

Therefore, male element 40 successfully accurately rolls inside the rail sections 70 of box body 7.

It is preferably, the actual cervical region 42 being equal to male element 40 of length of the rail sections 70 of box body 7, and adopt metal Material is made, such as silver, copper or rustless steel.

Particularly, copper is especially advantageous for realizing anterior situation, and such as titanium or other materials and alloy have a high cunning Dynamic abrasion risk, for this reason, require one with the coupling of the element being made up of low friction coefficient materials, such as copper.

Anchor portion 71 is received slidably into inside the bar-like portion 43 of male element 40, for this purpose it is proposed, in the 3rd end face 71A and Extend between 4th end face 71B, the 3rd end face impacts second end face 70B of leader 70.

3rd end face 71A of box body 7 anchor portion 71 is provided with a through hole 12, communicates with its second longitudinal direction chamber 81, and Passed through by the bar-like portion 43 of male element 40.

And second end face 70B of box body 7 leader 70 is provided with an opening, the first longitudinal direction with leader 70 Chamber 80 communicates, and is passed through by the bar-like portion 43 of male element 40.

As shown in Figure 10, the bar-like portion 43 of male element 40 is inserted into leader 70 by a standing part In first longitudinal direction chamber 80, it is wound around by the cervical region 42 of male element 40, and be arranged in a blind hole of this cervical region 42.

Additionally, anchor portion 71 also has an outer surface 9, and it is furnished with the anchor that can be used for being mechanically fixed in bar 2 pedestal 100 Determine device 10.

Additionally, also providing a flexible member 13, it is contained in inside the second longitudinal direction chamber 81 of box body 7 anchor portion 71, and Bar-like portion 43 parallel to male element 40.

This flexible member 13 be inserted in first abutment element 45 being connected to bar-like portion 43 and one be connected to anchor Determine between the second abutment element 11A of part 71.Flexible member 13 is compressed and promotes can understand male element 40 towards bearing 100 Internal mobile, therefore head 41 is promoted by first end face 70A towards box body 7 leader 70.

It is preferably that the enlarged head that the first abutment element 45 passes through male element 40 bar-like portion 43 obtains, and The spring that flexible member 13 passes through coaxially to be wound around around male element 40 bar-like portion 43 obtains.

It is arranged on the through hole 12 on box body 7 anchor portion 71 the 3rd face 71A, its diameter is less than the size of flexible member 13, Therefore, this flexible member can enter against a ring edge 11A of anchor portion 71 the 3rd face 71A, is arranged on through hole 12 Surrounding is simultaneously defined by the second abutment element for flexible member 13.

It is preferably that flexible member 13 and male element 40 bar-like portion 43 are completely contained in two longitudinal chambers 80 of box body 7 In 81, to be still adequately protected.

It is more optimally that the second face 70B of box body 7 leader 70 is easy to apply to box body 7 anchor by shape coupling 500 Determine on the 3rd face 71A of part 71.Shape coupling 500 prevent between the leader 70 of box body 7 and anchor portion 71 with respect to The mutual rotation of longitudinal development axle Y.

According to a form of preferred implementation of the present invention, box body 70 leader 71 second face 70B and anchor portion 71 Shape coupling 500 between three face 71A, right by one of the convex surface edge similar with having with an edge Concave surface is answered to obtain.These male and fomale(M＆F)s, one on the second face 70B of leader 70, another is the 3rd of anchor portion 71 the On the 71A of face.

It is more optimally that convex surface passes through the Pyramid of a rectangular base on the 3rd face 71A of anchor portion 71 Realize, and the concave surface of analogous shape is realized on leader 70 second face 70B and mated convex surface.

Except when male element be installed on bar 2 and the latter in normal open position in case for users to use when real Beyond now, this shape shaft coupling 500 is also being realized when male element 40 is still necessary to be installed on bar 2, as in Fig. 7 and 1 The example being respectively shown in.

According to a preferred solution of this hinge 1, cervical region 42 and box body 7 leader 70 first longitudinal direction chamber 80 are formed Shape be used for prevent the cervical region 42 of male element 40 from rotating around longitudinal axiss Y.

For example, preferably, the shape of cervical region 42 is parallelepiped, for sliding into the first of box body 7 rail sections 70 In longitudinal chamber 80, by using this shape thus preventing male element 40 to rotate round longitudinal axiss Y.Obviously, do not stop The section of cervical region 42 and rail sections 70 has a polygon, shaped form or other shapes, such that it is able to prevent from doing around axle Y Useless rotation.

The shape in leader 70 first longitudinal direction chamber 80 is easy to broach to obtain by through hole, and is band closing on the contrary The conventional hinge of box body is not typically possible, and broaching is blind hole wherein, and bigger chip therefore can be caused to clean Difficult.The through hole broaching being allowed by hinge 1 of the present invention allows one and more extensively more accurately processes, and therefore in male element 40 There is in guiding accurate advantage.

The wire pulling method of box body leader 70 is divided into two different pieces by this box body 7 and is facilitated further, And different process operations can be carried out thereon.

Operationally, when bar 1 round pin 6 close, open and surpass open position motion when, due to obtaining spring 13 Active force, male element 40 is by the pedestal 100 of bar or neck exposes from rail sections 70 part.In order to reach the pass of bar 2 Close and surpass open position, the front surface 20 of bar to be made comes on the edge on surface 30 after nose 3, allow bar 2 pedestal 100 away from pin 6 lateral shaft X, and therefore to male element 4 applying power to overcome the effect of rotating spring 13 so that it is exported from pedestal 100.

Along the development axes Y longitudinal extension of bar 2, it has one to the part 70 and 71 that box body 7 is mutually matched by two shapes Individual generally parallelepiped shape, is more optimally furnished with a upper wall, a lower wall, two side walls and has been named Correspond respectively to the first face 70A and fourth face 71B of leader 70 and anchor portion 71, substantially towards the second hinged member 5 With the rotation of pedestal 100 bottom.

Preferably, there is an opening 14 facing base bottom 100 in box body 7 anchor portion 71, and its size is more than spiral shell The lateral dimension (external diameter) of rotation spring 13, also greater than the size of the enlarged footing 45 of the bar-like portion 43 of male element 40.Preferably, open Mouth 14 extends on the whole cross section of box body 7 anchor portion 71.

By this way, box body 7 anchor portion 71 can slide and by axially outward round the public affairs of helical spring 13 The bar-like portion 43 of element 40 is housed in its interior.

Preferably, above-mentioned main anchoring device 10 includes two or more teeth, is particularly also arranged on box body 7 anchor Determine on the opposite face of part 71 outer surface 9 (according to accompanying drawing example on the opposite face of side, these dominant anchor devices 10 can To be arranged on the whole of box body 7 anchor portion 71 outer surface 9 and four faces).

Preferably, box body 7 anchor portion 71 is parallelepiped-shaped, and somewhat tapered, its side wall is towards inside pedestal 100 Come to a point, be therefore arranged on the tooth 10 on the opposite face of side, corresponding to more internal closer of pedestal 100, corresponding to pedestal 100 Outside each other further from.By this way, box body 7 anchor portion 71 obtains a wedge-type shape it is easier to insertion rod Pedestal 100 in, in the subsequent distribution of tooth 10 in the plastic matrix of bar 2 pedestal 100 formed a best adhering tool, And do not return vertically towards outside, be also included within high mechanical stress lower beam 2 and move particularly during excess of stroke open position In the case of.

Preferably, each tooth 10 is wedge shape, and has one towards the more internal conical section of pedestal 100.

During the assembling stage of male element 40, the bar-like portion 43 round spring is inserted box body from opening 14 side In 7 two coupling units 70,71, therefore it is fixed to the back side 42A of cervical region 42.

Connect bar-like portion 43 and this rigid mechanical connection of male element 40 cervical region 42 can be by fixing bar-like portion To obtain, there is enlarged footing 45 (Figure 10) in a blind hole 420 on cervical region 42 back side 42A in turn in 43 end 430.

Preferably, the end 430 of above-mentioned bar-like portion 43 is inserted in the blind hole 420 on cervical region 42 back side 42A, and Remained to inside it by a fritter of the material part 432 on cervical region 42 or the plastic deformation of multiple fritter.Should Texturized is to realize the compression of cervical region 42 or more preferable punching, above-mentioned material part 432 is brought into one and is located at rod In the annular groove 431 of the above-mentioned end 430 of shape part 43, thus affecting to carry out between assembly 42 and 43 by end 430 Relative axial movement.

In order to allow an instrument to execute punch operation on cervical region 42, the leader 70 of box body 7 is furnished with least one Through hole 90 and be more optimally furnished with two mutually perfectly aligned through holes, and they state end with respect to bar-like portion 43 430 annular groove 431 aligns, and instrument moves two material parts 432 by punch operation wherein.

So, the end 430 of bar-like portion 43 will be threaded connection to be mechanically secured to positioned at cervical region 42 back side 42A On blind hole 420 in, therefore avoid the curling plastic deformation of punching thus realizing through hole 90.

Or, as shown in Figure 20,21, this two parts of the bar-like portion 43 of cervical region 42 and male element 40 can be realized In the middle of one unitary member, then in this case the end of follow-up Ground shock waves bar-like portion 43 to form enlarged footing 45, and therefore avoid arduously connection member 42 and 43.

According to favorable characteristics of hinge of the present invention, provide one in the first hinged member 4 and the second hinged member 5 Coupling between metal surface.In more detail, the front surface 60 of second female 5 two shoulders 61 of hinged member (is furnished with alignment Hole 44') lean against two corresponding front area 70A' and 70A of box body 7 leader 70 first face 70A " on.

According to the embodiment of Fig. 1-2 1, the front surface 60 of second female 5 two shoulders 61 of hinged member, by mating " V " Type is attached partially to front area 70A' and 70A of box body 7 leader 70 first face 70A " on.The coupling of this " V " type can Reduce torsion of bar along longitudinal development axle Y, realize one and so-called anti-wave (antirocking) effect.

On the premise of without departing from this patent protection domain, the contact surface of the first and second hinged members will adopt one More conventional rotatable supported configurations, as shown in Figure 22 example.

It is more optimally that the box body 7 realize in the different piece of two connections is coupling in by shape, can effectively simultaneously And function optimization realize various pieces, and be particular enable to realize one for male element 40 accurately guide and realize one Firm grappling on bar for one hinged member 4.

Have benefited from the shape coupling of this two parts of box body 7, mutually rotation is prevented from.Additionally, easily being drawn by through hole The molding in leader first longitudinal direction chamber cutting acquisition is it can be avoided that cervical region 42 rotates with respect to box body 7.

The same use of this two parts of box body allows to form a first compact hinge before being assembled to bar 2 Connect element 4, thus facilitating subsequent operation or realizing a simple automatic assembling in glasses production process；Due in its appearance First anchoring device 10 is existed on face 9, box body 7 allows male element 40 to be securely seated between in the pedestal 100 of bar 2；Due to it Longitudinal chamber, box body 7 comprises and protects helical spring 13；Due to ring edge 11A, box body 7 allows helical spring 13 to dock；By In the shape of its parallelepiped, box body 7 will not rotate on the pedestal 100 of bar 2.

Therefore, hinge is considered to achieve expected purpose, especially can also avoid hinged member each other twist Turn round, and make installation process very simple and cheap simultaneously.

In a word it will be apparent that the hinge being described so far is probably different, but the model without departing from the present invention Enclose.The hinged member of such as elastic device is not stoped to be arranged on glasses nose yet, rather than on bar.

The possible embodiment realized according to hinge of the present invention, leader 70 is set on its outer surface 9' Put, similar to anchor portion 71 (not shown) of the second anchoring device, be also readily used in the pedestal 100 be mechanically fixed to bar 2.

The 3rd implementation according to hinge of the present invention as shown in figs. 23-25, in the second face of box body 7 leader 70 Shape coupling 500 between 3rd face 71A of 70B and box body 7 anchor portion 71, except preventing leader 70 and anchor portion Outside 71 rotate against, it is also prevented from sliding along longitudinal development direction.

Coupling between leader 70 and the above-mentioned face of anchor portion 71 is obtained by fixing device 600.Especially optimize Ground is that these fixing devices 600, by realizing suitable projection and the bottom on end face 70B and 71A of two parts 70 and 71 Cut to obtain bull/parent part.For example, it is possible to provide one be located at leader 70 second face 70B on dovetail pedestal 600' and One similar projection head 600 being located on anchor portion 71 the 3rd face 71A ".

Otherwise, the second face 70B of leader 70 and the 3rd face 71A of anchor portion 71, will be by assembling male element That realized before 40 carrys out mutually integration by the fixing device that screw rod or welding (or connection of other known types) obtain.

Just now the embodiment describing includes all advantages listed up to now, particularly, can have one by two The box body that individual different elements are constituted, by some little skills, enables to this two parts and is connected with each other, thus being conducive to hinge Compacter and durable.

Claims (10)

1. the spring hinge of this glasses plastic frame includes：

- at least one first hinged member (4), is mechanically connected on glasses bar (2) parts of plastics first component In individual pedestal (100),

- and at least one second hinged member (5), it is mechanically connected to second being made up of a front portion (3) of glasses On part, and it is rotatably coupled on the first hinged member (4) by a joint pin (6).

Described first hinged member (4) includes：

- one movable male element (40), is slid in the pedestal (100) of bar (2), is roughly parallel to bar (2) along one Longitudinal axiss (Y) extension of axle, is also equipped with：

Mono- head (41) of o, is used for extending at least partially into outside the pedestal (100) of bar (2), for through pin (6) rotatably It is connected on the second hinged member (5).

The cervical region (42) of mono- shaping of o, extends back from head (41)；

O at least one from above-mentioned cervical region (42) extension the bar-like portion (43) out and with respect to above-mentioned head (41)；

It is characterized in that described the first hinged member (4) also includes：

- one box body (7) being contained in bearing (100) simultaneously includes：

- at least one leader (70), this part is furnished with a first longitudinal direction chamber (80), guides and is received slidably into male element (40) cervical region (40) is internal, and extends between first end face (70A) and second end face (70B), the head of male element (40) Portion (41) is from first end face projection；

- at least one anchor portion (71), this is partially disposed within after leader (70) and is furnished with：

- one outer surface 9, and it is furnished with the anchoring device (10) that can be used for being fixed in bar (2) pedestal (100).

- and a second longitudinal direction chamber (81), it：

- be arranged on first longitudinal direction chamber (80) after,

- it is received slidably into inside at least one bar-like portion (43) of male element (40),

- and extend between the 3rd end face (71A) and the 4th end face (71B), the 3rd end face impacts the of leader (70) Biend (70B)；

- at least one flexible member (13), among the second longitudinal direction chamber (81) of box body (7) anchor portion (71), parallel to The bar-like portion (43) of male element (40) and between first abutment element (45) and being connected to bar-like portion (43) Between individual the second abutment element (11A) being connected to anchor portion (71), so that with respect to box body (7) leader (70) The head (41) of the mobile male element (40) of end face (70A).

2. as requested 1 the elastic hinge for glasses plastic frame, the second face of box body (7) leader (70) wherein (70B) it is readily used for being connected on the 3rd face (71A) of box body (7) anchor portion (71) by shape coupling (500)；Shape coupling Closing (500) prevents the leader (70) of box body (7) and anchor portion (71) from rotating with respect to longitudinal development axle (Y).

3. according to the elastic hinge for glasses plastic frame of one of any of the above described requirement, leader (70) setting therein There is second anchoring device, be readily used in the pedestal (100) be mechanically fixed to bar (2).

4. as requested 1 the elastic hinge for glasses plastic frame, be characterised by including fixing device (600), for edge Longitudinal (Y) and in the 3rd face (71A) restriction leader (70) of box body (7) anchor portion (71) around longitudinal direction (Y) Second face (70B).

5. according to the elastic hinge for glasses plastic frame of one of any of the above described requirement, wherein box body (7) anchor portion (71) the 3rd face (71A) is provided with the through hole (12) that at least one is passed through by bar-like portion.

6. according to the elastic hinge for glasses plastic frame of one of any of the above described requirement, flexible member (13), rod wherein The cervical region (42) of shape part (43) and male element (40) is completely contained in first and second longitudinal chambers (80,81) of box body (7) In.

7. according to the elastic hinge for glasses plastic frame of one of any of the above described requirement, the first abutment element (45) wherein It is furnished with an enlarged footing of male element (40) bar-like portion (43), and flexible member (13) is furnished with one round male element (10) coaxial springs of bar-like portion (43).

8. according to the elastic hinge for glasses plastic frame of above-mentioned requirements 5 and 7, wherein, positioned at box body (7) anchor portion Through hole (12) its diameter on (71) the 3rd faces (71A) is less than the diameter of flexible member (13), and flexible member (13) is used for Support is located at a ring edge in through hole (12) anchor portion (71) the 3rd face (71A) nearby, and by the second abutment element (11A) serve as.

9. according to above-mentioned requirements 2 for glasses plastic frame elastic hinge, the of box body (7) leader (70) wherein It is convex surface and that shape coupling (500) between two faces (70B) and the 3rd face (71A) of anchor portion (71) passes through an edge The similar edge of individual correspondence is that corresponding concave surface obtains, and the second face (70B) that concave surface is located at leader (70) is upper and convex surface is located at On 3rd face (71A) of anchor portion (71).

10. according to the elastic hinge of the glasses plastic frame of one of any of the above described requirement, the cervical region of leader (70) wherein And the shape of first longitudinal direction chamber (70) molding is used for preventing cervical region (42) from rotating around the longitudinal axis (Y) (42).