CN2585270Y - Elastic earpiece of glasses - Google Patents

Abstract

The utility model relates to elastic ear pieces of a pair of glasses, which belongs to the technical field of glasses. The utility model solves the problems that middle eyepiece bodies of the traditional push type elastic ear pieces are welded together with a housing, the mechanical strength is not high, the appearance is not shapely, etc. Each elastic earpiece of the pair of glasses comprises an earpiece body, the housing arranged at the end part of the earpiece body, a spring core, a hinge and a pile head, wherein, the front end of the housing is open, and part of the spring core is arranged in the housing. The outer end of the spring core is hinged with the hinge, the earpiece body is integrally connected with the housing, and the hinge is integrally connected with the pile head. Simultaneously, the surface of the earpiece body is provided with no rivet point hole. When the utility model is manufactured, points are riveted at small projections of the blank of the earpiece body, and then the projections of the riveted points are milled off by a metal saw, so that no riveting point is arranged on the elastic earpiece of the glasses. The elastic ear pieces of the pair of glasses have the advantages of high mechanical strength, good integrity and shapely configuration of the product. Simultaneously, various problems caused by welding can be avoided by the welding free process.

Description

Elastic glasses foot

Technical field

The utility model belongs to the optometric technology field, particularly a kind of rubber-like earpiece.

Background technology

As everyone knows, elastic glasses foot is used in glasses widely.Because elastic glasses foot can also outwards rotate a low-angle again when being shown in an open position, so elastic glasses foot can clip people with glasses's head, glasses are had on firmly.

In elastic glasses foot, the pin body of earpiece and hinge are hinged by a spring core.Spring core is placed in the housing of earpiece end.

As shown in Figure 7, in traditional push-plate type spring earpiece, between pin body 1 and the shell 2, all connect together between hinge 3 and the pile crown 4 by welding.In process of production, load onto in the shell 2 behind the spring core 5 and 1 welding of pin body, so the high temperature of welding easily causes the shell 2 inner spring fuses 5 elasticity deficiencies of annealing, and the welding meeting stays the weldering trace between shell 2 and pin body 1, influences attractive in appearance again.Simultaneously, welding also can produce phenomenons such as rosin joint, empty weldering, makes the product quality of earpiece be difficult to guarantee.

The manufacture craft that adopts pin body and shell disjunctor is also arranged, but in this technological process, need be with the spring core that fixes towards riveting in the housing, so can leave the pit of riveting point in the appearance of earpiece, directly influence the specious of earpiece.

Summary of the invention

The purpose of this utility model is exactly in order to overcome the problems referred to above, provides a kind of overall mechanical properties good, specious elastic glasses foot.

For achieving the above object, the present invention has adopted following technical proposal: this elastic glasses foot comprises a pin body, is positioned at the shell of pin end of body, a spring core, a hinge and a pile crown, the front end of shell opens wide, the part of spring core is housed in the shell, and be provided with one between shell and the spring core and prevent that spring core breaks away from the pin of shell, the outer end and the hinge of spring core are hinged, and above-mentioned pin body and shell are connected as a single entity, and hinge and pile crown are connected as a single entity; Simultaneously, the surface of pin body does not have riveting point hole.

The method for making of above-mentioned elastic glasses foot realizes through the following steps:

The preparation of a, blank: circular wire rod leads straight blanking, and cold forging becomes the blank of required multistage different-diameter, suppresses disjunctor toe feathering base with hydropress or punch press then, and there is a riveting point small boss at the riveting of pin body point place on this blank;

B, cut-out: after the burr of blank removed, cut off, become hinge (pile crown) blank and pin chaeta base with metal saw;

C, pin body bore straight hole: pin chaeta base bores straight hole on bench drill, mill step and groove with metal saw then on milling machine;

D, pin body mill the fuse groove: mill the fuse groove of straight hole upper end with milling cutter on milling machine, and the spring core that presses is packed in pin body straight hole and the groove, at the small boss place of pin chaeta base riveting point;

E, pin body mill riveting point boss: with the riveting point boss mill off of metal saw with pin chaeta base;

F, hinge slightly roll and mill R: the hinge blank that produces among the above-mentioned steps b is put into the roll cast machine slightly roll, be placed on then and mill R on the milling machine;

G, hinge boring and groove milling: hinge is placed on auger shell line bottom and screw terminal counterbore on the bench drill, tapping on tapping machine again;

H, hinge are connected with the pin body: manufactured pin body and hinge (pile crown) are coupled together with screw, carry out surface finish again and handle, promptly get spring earpiece finished product.

Compare with existing elastic glasses foot, the elastic glasses foot that the utility model provides has following advantage:

1, pin body and shell are the one-piece constructions that is connected as a single entity in this elastic glasses foot, by disposal pressed moulding, and the physical strength height of its product, good integrity.

2, because this elastic glasses foot has adopted the technology of exempting to weld, thus all disadvantages of having avoided traditional welding technology to bring, as rosin joint, empty weldering, overlap and defective such as insecure; The influence that the high temperature that welding produces causes the elasticity of product; Environmental pollution in the welding process or the like.

3, because the outside surface of this elastic glasses foot has been eliminated traditional eyewear pin outside surface because of the left pit of a riveting, therefore surperficial no any riveting point vestige, product is elegant in appearance.

Description of drawings

Fig. 1 is the front elevation of this spring earpiece.

Fig. 2 is the partial sectional view of Fig. 1 along A-A.

Fig. 3 is the Facad structure synoptic diagram of this spring earpiece medi-spring fuse.

Fig. 4 is the side structure synoptic diagram of this spring earpiece medi-spring fuse.

Fig. 5 is the blank shape figure of this spring earpiece.

Fig. 6 be Fig. 5 along B to partial schematic diagram.

Fig. 7 is the structural representation of conventional springs earpiece.

Fig. 8 is the manufacture craft process flow diagram of this spring earpiece.

Among the figure, 1, pin body 11, small boss 2, shell 21, pin 3, hinge 4, pile crown 5, spring core 51, body 52, kerve tubule; 53, spring 54, sealing tubule; 55, circular hole; 6, screw.

Embodiment

As depicted in figs. 1 and 2, this elastic glasses foot comprises parts such as pin body 1, shell 2, spring core 5, hinge 3 and pile crown 4.Shell 2 is positioned at the end of pin body 1, and shell 2 is connected as a single entity with pin body 1.The part of spring core 5 is housed in the shell 2.The head of spring core 5 exposes shell 2.

As shown in Figure 3 and Figure 4, in the present embodiment, spring core 5 is made up of mandrel body 51, spring 53, kerve tubule 52 and sealing tubule 54.Kerve tubule 52, spring 53 and sealing tubule 54 are socketed on the body 51 successively.The tail end of body 51 is flattened, and each part that is socketed on the body 51 can not broken away from.Have a groove 52a on the kerve tubule 52, a pin 21 that is connected with shell 2 is embedded in this groove 52a, is used for the location to kerve tubule 52.

In the present embodiment, pin 21 is connected as a single entity with shell 2.

The head of body 51 has a circular hole 55, and this circular hole 55 is used to realize the hinged of spring core 5 and hinge 3.

In the use of this elastic glasses foot, spring core 5 is frequent flexible in housing 2.For the wearing and tearing that prevent that spring core 5 bodies 51 from causing with the friction of housing 2 inboards and pin body 1, above-mentioned kerve tubule 52 will be from groove 52a position in the body 51 to body 51 head circular holes 55 places is coated on.Because kerve tubule 52 is fixed, so in spring core 5 bodies 51 telescopic process, mandrel body 51 only and certain friction is arranged between the kerve tubule 52 and does not contact with pin body 1 with shell 2 inboards.Generally, kerve tubule 52 is different with the material of mandrel body 51, thus the wearing and tearing of mandrel body 51 and kerve tubule 52 can be reduced to bottom line, thus prolong the serviceable life of earpiece.

As shown in Figure 2, in the time of in spring core 5 inserts in shell 2, snap in by pin 21 in the groove 52a of kerve tubule 52, make spring core 5 can not break away from shell 2.But pulling mandrel body 51 can make body 51 stretch out housing 2 within the specific limits.In case external force disappears, mandrel body 51 will be withdrawn under the elastic force effect of spring 53.

As shown in Figure 2, hinge 3 and pile crown 4 be connected as a single entity (following general designation hinge 3).On the hinge 3 threaded hole is arranged.Pass the threaded hole on the hinge 3 and the circular hole 55 of spring core 5 heads by a countersunk head screw 6, make pin body 1 and hinge 3 hinged.

As shown in Figure 8, below manufacturing of this spring earpiece elaborated:

A, blank preparation: the material of this spring earpiece can adopt titanium, Alpaka, no Alpaka or stainless steel etc.At first the circular wire rod with the earpiece material leads straight blanking, repeatedly behind the reducing, forms the blank of multistage different-diameter by cold forging.Elder generation suppresses disjunctor toe feathering base with the hydropress or the punch press of suitable tonnage then.There is a riveting point small boss 11 at the riveting of pin body 1 point place on the blank of this spring earpiece.Riveting point small boss 11 can be positioned at the back side, sidepiece or the front of pin body 1 on the blank.As shown in Figure 5 and Figure 6, riveting point small boss 11 is positioned at the back side of pin body 1 on the blank in the present embodiment.At last, the blank that suppresses is placed on the punch press cuts edge.If pure titanium series products also should be put into blank hydraulic pressure oil drum heating about 15 minutes before side cut.

B, cut-out: blank is put into planetary roll cast machine bucket rolled 80 minutes, the burr of blank is removed substantially, and the moisture content on blank surface is dried with hydro-extractor.Then, blank is put into fraise jig, cut off, become hinge (pile crown) blank and pin chaeta base with metal saw.

C, pin body bore straight hole: pin chaeta base bores straight hole on high-speed bench drilling machine, the bench drill speed of mainshaft generally requires more than 5600 rev/mins.On high-speed milling machine, mill step and groove then, guarantee height, angle and groove width size with metal saw.Usually also will beat straight hole again on high-speed bench drilling machine, purpose is to eliminate endoporus because of milling the burr that step and groove milling produce.

D, pin body mill the fuse groove: mill the fuse groove of straight hole upper end with milling cutter on milling machine, should note the control of groove depth size during groove milling.Then the spring core that presses is packed in pin body straight hole and the groove.Last riveting point small boss 11 places riveting point at pin body 1 blank.Riveting point preferably carries out with draw point on hand little punch press.Should note during riveting point in the middle of the groove 52a of kerve tubule 52 on its position alignment spring core.The degree of depth of riveting point should be regulated suitably, crosses deeply not only easily fuse 5 to be rivetted, and influence elasticity, and pit can not be eliminated behind the mill off boss; Crossing shallow then spring core 5 pulls easily.

E, pin body mill riveting point boss: with metal saw small boss 11 mill ofves are put in riveting on milling machine, also riveting is put also mill off of pit simultaneously.

F, hinge slightly roll and mill R: the hinge blank that produces among the above-mentioned steps b is put into the roll cast machine slightly roll, be placed on then and mill R on the milling machine.After having milled R, the burr on R limit is cut with scissors.

G, hinge boring and groove milling: hinge is placed on auger shell line bottom and screw terminal counterbore, tapping on hand tapping machine again on the high-speed bench drilling machine.

H, hinge are connected with the pin body: manufactured pin body 1 and hinge 3 (pile crown) are coupled together with screw 6, pull start point and pull elasticity with hand on anchor clamps, carry out processing such as surface finish, cleaning, tumbling again, promptly get spring earpiece finished product.

Claims (5)

1, a kind of elastic glasses foot, comprise a pin body (1), be positioned at shell (2), a spring core (5), a hinge (3) and a pile crown (4) of pin body (1) end, the front end of shell (2) opens wide, the part of spring core (5) is housed in the shell (2), and be provided with one between shell (2) and the spring core (5) and prevent that spring core (5) breaks away from the pin (21) of shell (2), the outer end of spring core (5) and hinge (3) are hinged, it is characterized in that described pin body (1) and shell (2) are connected as a single entity, hinge (3) is connected as a single entity with pile crown (4); The surface of pin body (1) does not have riveting point hole.

2, elastic glasses foot according to claim 1, it is characterized in that described spring core (5) is made up of mandrel body (51), spring (53), kerve tubule (52) and sealing tubule (54), kerve tubule (52), spring (53) and sealing tubule (54) are socketed on the body (51) successively.

3, elastic glasses foot according to claim 2 is characterized in that having on the described kerve tubule (52) groove (52a), and a pin (21) that is connected with shell (2) is embedded in this groove (52a).

4, elastic glasses foot according to claim 3 is characterized in that described pin (21) and shell (2) are connected as a single entity.

5, elastic glasses foot according to claim 3, it is characterized in that described kerve tubule (52) will be coated on from the body (51) that groove (52a) position to body (51) head circular hole (55) is located in.

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