CN1188551A - Spectacles frame with resilient hinge - Google Patents

Abstract

An elastic hinge includes an outer front hinge axial seat (12) and an inner arm hinge axial seat (22) which are rotationally connected by a pin (30). The contact surface of one of the hinge axial seats is provided with an ascending part (24) along the diameter direction; the ascending part is provided with an inclined side surface meshed with a cross recess (18/19) on the other hinge axial seat; the recess limits the opening and closing positions of a suspension arm.

Description

Spectacle frame with elastic hinge

The present invention relates to when frame is on user's head, have the spectacle frame of vertical substantially front portion, the mirror holder both sides with the horizontal side arm of hinge connection so that collude on ear.

A what is called " elasticity " hinge allows that boom is moving to a boom in the so-called open to the outside world position at right angle (mirror holder has been prepared to be with) from a boom with positive parallel what is called " sealing " position (mirror holder has been prepared pack into mirror bag or mirror case) with rotation mode on the surface level under pressure.This hinge also can make boom do the assistant spring activity of stretching beyond the release position.This hinge makes user's glasses on the frame cosily, appreciated by the public.Especially the both arms frame has the characteristics of an amount of pressure when temple.

A hinge simultaneously comprises a preceding hinge axle bed that is fixed in pull end usually, this handle can be straight, mutual folded, rolling or elbow, and another side then has the arm hinge axle bed and a hinge pivot that connects two hinge axle beds at a direct or indirect linking arm end.Inner hinge axle bed one speech is the part of being made up of two windows that are arranged above and below with the fork-shaped formula in order to point out, and outside admit the centre window of hinge axle bed.

In first kind elastic hinge, the periphery of outer hinge axle bed has cam face, especially has two perforations that limit open and off-position respectively, is pressing the cam of ball by spring for one, and both all place on the position relative in the inner hinge axle bed.The hinge of this complexity all has description in file FR1120399 or EP137885.

In the second class elastic hinge, arm hinge axle bed can go to beyond the release position, and connects boom with the elasticity rotary machine of complexity by stretch mode, and the end of boom then rests on the handle that is positioned on its directrix.Therefore, when boom moved to away from its release position, the inner edge of boom end moved apart the fixed hinge axle bed with the rotation mode around fulcrum.On the contrary, when boom during to the revolution of its detent position, the cam type periphery of preceding hinge axle bed pushes back mechanism's top cover, and top cover compresses or extension spring once more.These complicated hinges all have description in file FR1511263 or FR2609816.

File FR2057408 has described another kind of elastic hinge, and this hinge has outer preceding hinge axle bed and the inner arm hinge axle bed that is connected by the hinge pivot.The upper surface of the outer hinge axle bed that contacts with the inner hinge axle bed is smooth, and following laminar surface then forms a cruciform perforation (or diplopore), it with outer hinge axle bed under hypotenuse rising part (or hub) interaction of window.The bottom of following window has elasticity, makes it remove when boom is open, and outer hinge axle bed still is on any that contacts with the last window of boom.Yet the elasticity proof of this hinge is pine too, need time side be reliable.

The major defect of these elastic hinges is it, and volume of the initial part of the handle beyond the hinge axle bed and/or arm must enough big ability assembly elastic mechanical separately.Its appearance is not attractive in appearance especially, and especially the major part when handle or boom is reduced to a simple bar.

The present invention relates to the elastic hinge of spectacle frame, it can directly be connected in pull end or boom, and needn't change their end, and reason is that this elastic mechanical is hidden in the hinge.Yet because the ingredient of this hinge reduces, so this hinge is still firm strong, rational in infrastructure, control and price are medium easily.

The object of the present invention is achieved like this, a kind of hinge is provided, it is made up of preceding hinge axle bed and arm hinge axle bed that a hinge pivot connects, one of them surface of contact vertical with the hinge pivot has at least one rising part, one or more holes interaction of its hypotenuse and another hypotenuse, reason is that this outer hinge axle bed can be along the hinge pivot interaction that connects, and rising part left the hole and the power that produces when coaxial elastic part boom rotated with handle to contend with cutting with scissors pivot.

By logic, it is also impossible with the spring of revolting and the hinge pivot is coaxial that the outer hinge axle bed of " floating " is positioned on the inner hinge axle bed, and reason is that spring is usually located on the directrix of boom.Yet, through the test of workshop repeatedly, finds as use a small spring that only has two or three circles, and the diameter of spring is enough to provide some stiffness, or as spring with spirality or other according to arrangement and use of the present invention, this installation is feasible.On the other hand, this moving of hinge axle bed makes it can consider higher rising part, to reach better mortise lock effect.This also makes elastic mechanical be hidden in the hinge comprehensively, and that the volume of hinge also can keep is tiny, especially when hinge be when making by metal.And, this hinge and do not require handle or the end of arm thick especially.

According to first embodiment, two hinge axle beds all belong to outer hinge axle bed, only have one with hinge pivot vertical surface of contact, at least one outer hinge axle bed has an arc rising part that hypotenuse is arranged, this part can be blocked one or more arc recess, and makes the hinge axle bed be moved away from each other along the hinge pivot that connects under the power that spring produced.

Embodiment with two outer hinge axle beds makes it can produce especially effectively but the tiny hinge of volume.

Its advantage is that rising part is along diametric, and recess then is a cruciform, to limit the opening and the detent position of boom.

This cruciform recess mills out by two and rectangular grooves are produced, and two grooves are the center by the hinge axle bed all.This recess has a symmetry or asymmetric cruciform, in other words, is made up of two grooves that have different depth and/or width.

And a situation along diametric rising part that mills out is also identical.This rising part is cut into the shape of hinge axle bed, as wishes that it reaches the highest elastic effect, then has a leg-of-mutton xsect, as wishes that it reduces friction, and then needs a semi-cylindrical shaped part.

As going out molding part, then have an opportunity to consider to make the regular cruciform rising part of complementary recess with plastic cement or metallic.Although difficult the realization, this rising part has the advantage of increase hypotenuse surface of contact.

As a selection, the hinge axle bed of carrying rising part can be a cup-shaped, and its cylinder side wall has two along diametric aperture, and rising part then comprises the pin that passes the aperture on the hinge axle bed and pass the horizontal hole of hinge pivot.

Preferably, this elastic part is one and places the spring between the hinge pivot head and the first hinge axis seating face, another end of hinge pivot is fixed in another hinge axle bed, for example places the threaded portion in aperture or passes the vertical needle of cutting with scissors pivot and another hinge axle bed simultaneously by one by one.

The head of hinge pivot and the cup-shaped place that spring preferably places the first hinge axis seating face to be provided.This cup is relatively simple, makes with simple bore mode, can make spring and hinge pivot be protected.

Spring can be spirality, and coaxially around the hinge pivot.Elastic hinge will more directly reach higher.

Be to strengthen elastic stiffness and reduction distance, the volute spring that can use itself seals.

Select as another, can use the volute spring with axis coaxle, but diameter of each circle increases all to form a volute spring.This spring can reach long-range, and reason is that it can be compressed into the thickness that highly equals a circle, and this spring then forms an ellipse.The surface level of this elastic hinge will be wideer and thin.

According to consideration attractive in appearance, handle and arm can be arranged to the extension of hinge diameter, or skew mutually on surface level, temple near the wearer, and another is then towards the outside.

The one or both sides surface of contact of hinge axle bed covers by packing ring, and packing ring conforms to the shape of rising part or relative recess, and this packing ring is to be made by the manufactured materials material harder and/or that friction is lower than the hinge axle bed.

According to second embodiment, the shape of inner hinge axle bed such as sleeve, its cylinder side wall has a V-arrangement direct-vision port, form two and go up holes, and outer hinge axle bed be shaped as rod end, has a circular cross section, constitute a semicircle rising part with direct-vision port, this rod end is fixed on the dish, connects pin as one, and in sleeve, slide, as the elastic part between cover tube bottom and the dish.

Each V-shape hole limits the opening or the detent position of hinge.But present embodiment also comprises the part of ease of Use, and can obtain the hinge of non-obstruction, can directly accept the end of handle or arm, makes arm become a simple Metallic rod.

Preferably, extended by downward-sloping segment in the hole that limits the boom release position, to allow resilient movement beyond boom is in the release position.

By to the research of non-restrictive example and to the description of accompanying drawing, can more clearly understand the present invention, wherein:

Fig. 1 is the stereographic map according to the decomposition of first embodiment of hinge of the present invention;

Fig. 2 a and 2b are for observing the view of hinge shown in Figure 1 above reaching from the side respectively, boom is positioned at the release position;

Fig. 3 a and 3b are similar to Fig. 2 a and 2b, but boom is positioned at the centre position;

Fig. 4 is the stereographic map according to the decomposition of first alternative embodiment of the hinge of Fig. 1;

Fig. 5 a, 5b, 5c and 5d are for observing the view of hinge shown in Figure 4 above reaching from the side respectively, at first boom is positioned at the release position, and boom is positioned at the centre position then;

Fig. 6 a and 6b be respectively from the front and the side observe skiagraph according to second alternative embodiment of hinge shown in Figure 1;

Fig. 7 is the stereographic map according to the decomposition of the 3rd alternative embodiment of hinge shown in Figure 1;

Fig. 8 is the stereographic map according to the decomposition of second embodiment of hinge of the present invention;

Fig. 9 a, 9b, 9c and 9d are respectively the stereographic map of hinge after assembling according to Fig. 8, and show that respectively boom is positioned at detent position, centre position, release position and the release position situation with external position.

The hinge that Fig. 1 to 3 shows, one side by preceding hinge axle bed 12 be fixedly connected on spectacle frame pull end 10 in front and form, the terminal flexing of another of boom 20 is to catch on ear.Make the screw 30 that has head 32 relative with the upper surface of preceding hinge axle bed 12, and threaded rod 34 passes the central, threaded aperture 26 that the window of preceding hinge axle bed 12 enters arm hinge axle bed 22, screw thread and threaded rod in the aperture are spirally connected, and hinge axle bed 12 is connected with 22 cycles of arm hinge axle bed before making.

Especially, according to the present invention, screw 30 must the person be high, and therefore an elastic part 40 can be arranged between the upper surface of screw head 32 and preceding hinge axle bed 12.As shown in Figures 1 to 3, this elastic part is the volute spring coaxial with screw 30.The cup 14 of hinge axle bed upper surface before screw 30 is positioned at, this cup seals with screw head 32.By such installation, preceding hinge axle bed 12 just can move apart arm hinge axle bed 22 along threaded rod 34, and compression spring 40.

In addition, arm hinge axle bed 22 first halves that contact with preceding hinge axle bed 12 Lower Halves have a rising part 24, and this part has triangular cross section along diametric(al).Comparatively speaking, two vertical be positioned at along diametric recess 18 and 19 before the Lower Half of hinge axle bed 12, these two recess also have triangular cross section, and recess 18 cross-sectional area with rising part 24 haply is identical, and recess 19 then has the bottom of broad.

Fig. 2 a and 2b show the hinge that is in release position (being the extension of pull end 10) when boom 20.On this position, the placing in the recess 19 of arm hinge axle bed 22 along diametric rising part 24.The Lower Half of the first half of arm hinge axle bed 22 and preceding hinge axle bed 12 is by the spring under the head that is pressed in screw 30 40 the hinge axle bed to be pushed away downwards to couple together.

Fig. 3 a and 3b show the rotation of how to give the pull end 10 relevant with boom 20, especially from the release position to the rotation of detent position, cause rising part 24 to leave recess 19 thus, make arm hinge axle bed 22 and screw 30 under the compression of spring, move down.On the other hand, as long as rising part 4 begins to join another recess 18, the compression of spring 40 is encouraged rising part to rise and is entered second recess, quickens boom and arrives second position.What arm hinge axle bed 22 made progress after the elder generation of preceding hinge axle bed 12 reaches downwards moves, and especially can produce by the interaction of rising part 24 relative recess 18 or 19.

Fig. 4 and 5a, 5b, 5c and 5d have shown first alternative embodiment, and the rising part 25 of arm hinge axle bed 22 has a circular cross section, and in other words, this rising part 25 is a semi-cylindrical shaped along diametric mid-plane cutting.Arm hinge axle bed relatively before the vertical range of hinge axle bed slightly reduce, the interaction that makes rising part and relative recess is than tool elasticity.

In this alternative embodiment, elastic part is a volute spring, and it is around the axle of screw 30.Shown in Fig. 5 a to 5d, when rising part 25 leaves recess 18 or 19, spring 42 is compressed, and each circle is subjected to the side direction pressure rolling.The advantage of this spring is for having high elastic coefficient, even still can apply enough thrust under mild compression.

More clear shown in Fig. 5 a, 5b, 5c and the 5d, first embodiment that the shape of this hinge can be more shown in Figure 1 is flat, and has slightly long diameter, therefore provides another selection for the designer when considering the design for aesthetic of spectacle frame.In Fig. 5 b, on the same directrix in diameter place of the boom of release position and hinge, and be the extension of pull end 10.Yet, in the embodiment of the hinge that has longer diameter, can imagine that fully pull end and boom are consideration attractive in appearance and in the plane mutually to pin, one of handle and boom will more be pressed close to wearer's temple.

Second alternative embodiment shown in Fig. 6 a and the 6b and the example of Fig. 1 have difference, and its difference mainly in the manufacture method of the arm hinge axle bed 22 with rising part, then specify with same numeral by similar portions.In this alternative embodiment, arm hinge axle bed 22 places in the cup, the cup the bottom central aperture 26 is arranged, and by cylinder abutment wall 23 round.On abutment wall, there are two along diametric aperture 27.Relatively, screw 30 has a head 32, and its bar 34 ' has a lateral aperture but not a helical.Rising part comprises that one passes the pin 25 ' of abutment wall 23 and bar 24 simultaneously, to pin the hinge pivot.

During assembling, the abutment wall of arm hinge axle bed 22 is round preceding hinge axle bed 12, and the end of bar 34 ' places aperture 26, so that extra guiding to be provided.As needs, a cylinder pedal places the Lower Half of hinge.This pedal connects abutment wall 23 to keep the stable overall diameter of hinge axle bed.

The semi-cylindrical shaped first half of pin 25 ' is the same with last example, under spring 40 applied pressures with vertical along diametric recess 18 and 19 interactions, to determine two lay-down positions of boom.This pin has an outstanding middle body 25 ", two shoulders that the central window 16 of hinge axle bed 12 is supported before being formed on.This shoulder makes this pin lock in assigned address, and preserves the possibility of not assembling.

Fig. 7 shows inverted the 3rd alternative embodiment, it is a preceding hinge axle bed 13 with rising part 15 and threaded bores 17, and arm hinge axle bed 23 has recess 29 at the upper surface place that cooperates rising part 15, has a cup 25 in its lower floor surface, lead to central window for screw 30 processes, and screw is fixed from following.

This alternative embodiment also shows that rising part 15 and recess 29 all have cross-like shape complementary, systematicness.In other words, this rising part is mutually perpendicular leg-of-mutton corresponding along diametric rising part 24 with two.This complicated geometry is to be formed by molded, and it is corresponding to increase rising part 24 slightly.This complicated geometry is to be formed by molded, increases inclination area interactive between rising part 15 and the recess 29 slightly.

The triangular cross section of rising part 15 and recess 29 also can be processed to form a front gear with two rows, four teeth, and the cylinder wall and the window in aperture 17 are cut into rib shape by the fluctuating of these gear teeth.How the surface of contact of hinge axle bed and arm hinge axle bed can be covered by packing ring 21 respectively, and just in time meet the shape of rising part and recess before Fig. 7 showed.This packing ring is to be made by the material as stainless steel and so on, and the bazar metal that stainless steel is worn into according to the molded plastic cement of the hinge of Fig. 7 or according to the hinge shown in Fig. 1 to 6 is more hard and friction is lower.

Also shown the 3rd class spring that can be used for according in the hinge of the present invention in this example: promptly oval section volute spring 44, and the diameter of its each circle is also gone up a spring for long.After being compressed fully, this spring forms ellipse, makes it play the more traditional volute spring of journey for far away.

Fig. 8 and 9a, 9b, 9c and 9d have shown second embodiment according to hinge of the present invention, be included in the outer hinge axle bed 124/130 of the terminal manufacturing of boom 120, and relevant with the inner hinge axle bed 112 that is fixed in pull end 110, be understandable that arm and handle all can be reversed.

Especially, the shape of hinge axle bed 112 such as sleeve have bottom 116 and cylinder wall 114.A horizontal V-shape direct-vision port 111 is arranged on the wall, to open the direction in limit and two holes (left hole 118 and right hole 119) on defining.

Comparatively speaking, outer hinge axle bed becomes rod end 124, and its circular cross section is located immediately at the inner hinge axle bed, promptly constitutes in the direct-vision port 111 in the gap between window, so that be fixed on the aperture 132 that constitutes on the periphery that connects the dish 130 that cuts with scissors pivot.One compression spring, 140 one sides are positioned at the bottom 116 of sleeve, and another side is positioned at the following demifacet of the dish 130 that can slide into sleeve.First cylindrical portions may of rod end 124 constitutes rising part, the last surface of contact Elastic Contact of its circle hypotenuse and direct-vision port 111/113.

Shown in Fig. 9 a, the hole 118 of V-shape direct-vision port 111 limits the detent position of boom 120, and its pull end 110 preceding with being fixed in spectacle frame is relevant.Fig. 9 b shows when boom 120 moves with the rotation form, as coils 130 when shifting to the bottom of sleeve because of the compression of built-in spring, and the interaction of direct-vision port 111 and rod end 124 causes the following side shifting of outside hinge axle bed.Fig. 9 c shows how boom 20 rises under the power that built-in spring sent in second hole 119 that limits the release position.Be pushed to beyond its release position as boom, then rod end 124 will make dish 130 press down built-in spring through downward-sloping extension 113 once more.Fig. 9 d has more clearly illustrated should activity.

In the claim scope, still can make multinomial improvement to spectacle frame with elastic hinge.

Claims (11)

1. elastic hinge, by hinge pivot (30,130) the preceding hinge axle bed (12 that is connected, 120) and arm hinge axle bed (22,124) form, one of wherein vertical with hinge pivot surface of contact has at least one rising part (24,124), one or more holes (18/19,118/119) interaction of its dip plane and another side is characterized in that, when rising part moves apart the hole because of the relative pull end rotation of boom, the hinge axle bed cuts with scissors the pivot interaction along connecting under elastic part (40,42,44) the institute applied pressure coaxial with cutting with scissors pivot.

2. elastic hinge according to claim 1, it is characterized in that, two hinge axle beds are outer hinge axle bed, its surface of contact is vertical with the hinge pivot, at least one surface of contact has radially rising part (24,25,15), its inclined side can block one or more radially recess (18/19,29) of another side.

3. elastic hinge according to claim 2 is characterized in that, rising part (24,25) is along diametric(al), and recess (18/19) is symmetry or asymmetric cruciform, to limit the opening and the detent position of boom.

4. elastic hinge according to claim 2 is characterized in that, the shape of recess (21/29) and rising part (15) is well-regulated, complementary cruciform.

5. according to the described elastic hinge of one of claim 2 to 4, it is characterized in that the xsect of rising part is triangle or semi-cylindrical shaped.

6. elastic hinge according to claim 2, it is characterized in that, hinge axle bed with rising part is cup-shaped, its cylinder side wall (23) has two along diametric aperture (27), and rising part is to pass the aperture (27) on the hinge axle bed and pass the laterally pin (25) in hole of hinge pivot (34).

7. according to the described elastic hinge of one of claim 2 to 6, it is characterized in that, elastic part be a head (32) that is arranged at hinge pivot (30) with relative hinge axle bed (12) surface between spring (40,42,44), another end (34) of hinge pivot is fixed in another hinge axle bed (22).

8. elastic hinge according to claim 7 is characterized in that, the head (32) of hinge pivot and spring (40,42,44) all place in the surperficial cup (14) that is provided of hinge axle bed (12).

9. elastic hinge according to claim 8 is characterized in that spring (42) is spirality, or is coniform spiral shape (44).

10. according to the described elastic hinge of one of claim 2 to 9, it is characterized in that, one of them of hinge axle bed (23) two surface of contact or two cover by the packing ring (21) that the shape with rising part (29) or corresponding recess conforms to, and it is harder and friction is lower that the manufactured materials of this packing ring constitutes the material of hinge axle bed.

11. elastic hinge according to claim 1, it is characterized in that, inner hinge axle bed (112) be shaped as sleeve shaped, its cylinder side wall (114) has one and forms two V-arrangement direct-vision ports (111) of going up hole (118,119), and outer hinge axle bed is rod end (124) shape with circular cross section, and be fixed on the dish (130),, and in sleeve, slide spring part (140) running between cover tube bottom and dish as the connection pin.

Images