JP5529192B2 - Glass frame frame joint structure - Google Patents

Description

  The present invention relates to a frame joint structure for an eyeglass frame that connects the temples of the eyeglass frame so that the eyeglass frame can be folded and can be slightly pushed outward from the open state, and has a decorative property on the temple. .

  The eyeglass frame is composed of a front portion provided with a lens and a vine that is attached to the front portion and can be folded. When wearing glasses on the face, the tip of the vine is locked to the ear, but spring force is applied to the vine so that the front part does not shift even if it moves closely against the side of the face and moves lightly. In many cases, the joint structure is made stable, and this joint structure is conventionally called a spring hinge.

  FIG. 7 shows a crane joint structure called the most basic spring hinge. That is, the basic idea of the spring hinge is that a fixed butterfly piece (b) is brazed and fixed to the armor (b), and the other butterfly piece is allowed to slide for a certain distance. This allows the crane (d) to open outward.

  A guide groove is formed in the crane (d), and the sliding butterfly piece (c) slides with the guide groove as a guide. The coil spring (e) When the crane (d) is opened to the outside, the sliding butterfly piece (c) is pulled and compressed toward the fixed butterfly piece (b). The coil spring (e) hits a claw (g) provided at the inner cavity entrance of the sliding butterfly piece (c) and locked in the groove (f) of the claw (d), and the claw (g) functions as a stopper. doing. As a result, the restoring force of the coil spring (e) acts on the temple (d) and tries to return the temple (d) to its original position.

  By the way, the hinge structure in which the coil spring (e) is built in the sliding hinge piece (c) is complicated as shown in the figure. Therefore, the number of manufacturing steps is increased, and the hinge with a spring is expensive in terms of cost. . In addition, since the structure is complicated, there is a problem that it is easy to break down and difficult to repair once it breaks down. If the coil spring (e) and the metal core are pushed into the internal cavity of the sliding butterfly piece (c) and locked to the claw (g), the claw (g) and the coil spring (e) cannot be removed.

  That is, the claw (g) is restrained by the guide of the sliding butterfly piece (c), and the claw (g) locking piece (h) fits into the slot (f), and the head of the metal core (re) Will abut against the claw (g) with a spring force, and a force to push the locking piece (h) into the slot (f) will work. Therefore, the claw (g) cannot be removed from the sliding butterfly piece (c), and repair is impossible.

  Of course, there are various other joint structures that can perform the same function as the spring hinges, and the vine fits from the side of the face to the head when wearing glasses. However, the conventional joint structure is generally complicated and difficult to assemble, and therefore, repair is not easy. That is, it is different from the assembling work for connecting ordinary vines. When the spring hinge shown in FIG. 7 is attached, it is necessary to provide a guide on which the sliding hinge piece (c) slides on the temple (d), and insert a coil spring (e) and a metal core, (G) must be fitted, and it is not as easy as attaching a vine via a general hinge. “Hinges with springs for eyeglasses” according to Japanese Patent Application Laid-Open No. 2-304415 is a conventionally known document relating to the above-mentioned spring hinges.

  Japanese Patent Laid-Open No. 11-2784 “Structure of the connecting portion” is another specific example having a function as a spring hinge. The two members are connected so as to be relatively rotatable, and a moving member is attached. One member can be pressed in the rotating direction by applying a component force to the one member in a direction against the urging force of the urging member.

That is, a groove is provided in the connecting portion of one member, and the moving member is guided by the groove so as to be movable, and an urging member is provided in the groove so that the moving member can be urged. A piece portion that presses the moving member in a direction against the urging force of the urging member when the one member rotates more than a predetermined angle with respect to the other member is provided in the connecting portion of the other member. When the moving member is pressed in the direction against the urging force of the urging member by the piece of the other member, the component force acts on one member, and the one member is pressed in the rotating direction. However, the structure of this spring hinge is also complicated and it is not easy to assemble as a spectacle frame.
"Hinges with springs for spectacles" according to JP-A-2-304415 "Structure of connecting portion" according to Japanese Patent Laid-Open No. 11-2784

  As described above, the conventional crane joint structure having the spring hinge function has the above-described problems. The problems to be solved by the present invention are these problems, and can be easily assembled, have a function as a conventional spring hinge, and further have a decorative feature. Provide structure.

  The crane joint structure according to the present invention is configured such that a crane is connected to the front portion via a joint such as a hinge, and the crane can be folded. And the accommodating part which accommodates elastic bodies, such as a coil spring, is provided in the temple end part used as the joint side of a temple, an elastic body is accommodated in this accommodating part, and the sliding body which coat | covers this elastic body is attached to a temple. . Here, the sliding body is also provided with a housing portion that accommodates the elastic body, and the sliding body is provided with a pressing portion so that the elastic body accommodated when the sliding body slides is compressed. A receiving portion for an elastic body is formed in the housing portion formed on the vine.

  By the way, the sliding body has a substantially U-shaped cross section to cover the elastic body, and a guide surface is formed on the sliding body so that the sliding body can slide along the temple. The sliding body functions as a decorative member for the eyeglass frame, and for this purpose, various decorations are applied to the outer surface.

  The crane joint structure of the present invention is a simple structure in which an elastic body such as a coil spring is accommodated in a temple end portion on the joint side of the crane and a sliding body is attached, and it can be easily assembled. That is, a sliding body having a U-shaped cross section is fitted to the end of the temple, and the temple can be assembled by connecting the joint portion on the armor side. For this reason, there is almost no failure, but if it breaks down, it can be repaired by separating it from the front end.

  By the way, if the vine is pushed outward from the open state, the end surface of the sliding body hits against the end of the armor and is pushed back, so that the elastic body accommodated is compressed to push the vine back to the original position. Power is energized. This elastic force causes the vine to come into contact with the side of the face with a pressing force, and the glasses worn for that purpose are stabilized. On the other hand, the outer surface and the upper and lower surfaces of the sliding body are decorated, but when purchasing glasses for that purpose, you can choose a sliding body with your favorite decoration and design, It is also possible to exchange with another sliding body at a later date.

The spectacles frame provided with the crane joint structure of this invention. It is an external view which shows the crane joint structure of this invention, (a) is a top view, (b) is a front view. (A) is a state in which the vine is folded, and (b) is a state in which the vine is pushed outward. Internal structure of the joint that houses the coil spring. The example which shows a vine edge part. A specific example of a sliding body. A crane joint structure with a conventional spring hinge function.

  FIG. 1 is a specific example of a spectacle frame having a crane joint structure according to the present invention. In FIG. , 6 represents a crane, and 7 represents a sliding body. Both the rims 2 and 2 are connected by a connecting member 4, and substantially L-shaped armatures 3 and 3 are brazed to both sides of the front portion 1, and the temples 6 and 6 can be folded. Are attached via hinges 8,8. The present invention is a vine joint structure in which the vines 6 and 6 can be folded and the vines 6 and 6 can be slightly pushed outward from the open state as shown in FIG.

  By the way, in the crane joint structure of the present invention, the crane 6 is connected through a hinge brazed to the end of the armor, and the sliding body 7 is attached so as to be in contact with the hinge 8. A coil spring is accommodated in the accommodating portion formed between the temple 6 and the sliding body 7, and if the temple 6 is pushed outward, the end surface of the sliding body 7 is pushed back by being in contact with the end of the armor. . As a result, the coil spring of the housing portion is compressed, and a spring force that pushes the temple 6 back to its original position acts. This spring force acts as a pressing force on the side surface of the face when the glasses are worn, and the glasses are stabilized without being displaced.

  FIG. 2 shows the crane joint structure of the present invention, where (a) is a plan view and (b) is a front view. The sliding body 7 is attached to the temple 6 so as to be slidable along the temple 6. A coil spring is accommodated in an accommodating portion formed inside, and a spring that presses the sliding body 7 toward the hinge side. Power is energized. In the hinge 8, a butterfly piece 9 a brazed to the armor 3 and a butterfly piece 9 b brazed to the temple 6 are connected by a shaft screw 10, and the sliding body 7 is in contact with the butterfly piece 9 a.

  And the outer surface 11 of the sliding body 7 is decorated. Here, although the specific form of decoration is not ask | required, a figure and a pattern can be printed, and plating and painting can also be given. Sometimes other parts such as jewelry are attached. The decorative body 7 is cast or injection-molded, for example, and can be attached to the temple 6 with a cross-section of the decorative body 7 as a substantially U-shape. You can choose 7. Therefore, it is not necessary to decorate the temple 6, and the effect is great by attaching the decorated sliding body 7 to the temple.

  FIG. 3A shows a case where the temple 6 is folded, and FIG. 3B shows a case where the temple 6 is pushed outward. When the temple 6 is folded, the sliding body 7 pivots with the temple 6 along the smooth outer peripheral surface 12 of the butterfly piece 9 a, and the sliding body 7 does not move along the temple 6. Therefore, the coil spring accommodated in the inside of the sliding body 7 is not compressed, and the temple 6 is folded like a conventional glasses frame.

  On the other hand, when pushing the temple 6 outward, the sliding body 7 moves to the right as shown in FIG. That is, the end surface 13 comes into contact with the end of the armor and the sliding body 7 can move backward, and the coil spring accommodated is compressed and deformed simultaneously with the backward movement. As a result, a spring force is applied to push the temple 6 back to the original position. When the glasses are worn, the temple 6 comes into contact with the side surface of the face with a predetermined pressing force.

  FIG. 4 shows the internal structure of the sliding body 7. In this way, housing portions are formed on the temple side and the sliding body side, and the coil spring 14 is housed in the housing portion, and the coil spring 14 can be compressed and deformed if the sliding body 7 moves in the right direction. By the way, this sliding body 7 has a substantially U-shaped cross section, can be inserted from the direction of the butterfly piece 9b separated from the other butterfly pieces 9a, and can be fitted to the temple 6.

  That is, the sliding body 7 is inserted from the direction of the butterfly piece 9b in a state where the coil spring 14 is set in the accommodating portion formed at the end of the temple 6, and when the sliding body 7 is inserted, the butterfly piece 9b is replaced with another butterfly piece. 9a and shaft screw 10 are connected. Since the butterfly piece 9a is connected so as to sandwich the butterfly piece 9b, the inner curved surface 25 of the sliding body 7 contacts the butterfly piece 9a, and the sliding body 7 does not come off the temple 6.

  FIG. 5 shows the temple end 15 when the coil spring 14 and the sliding body 7 are not attached. In the figure, reference numeral 16 denotes an accommodating portion, and 17 denotes a spring receiving portion. The accommodating portion 16 is formed on the outer surface side of the temple end portion 15, and the coil spring 14 is accommodated in the accommodating portion 16 and one end of the coil spring 14 abuts on the spring receiving portion 17. Therefore, the spring receiving portion 17 protrudes from the outer surface 18. The butterfly piece 9b is brazed to the inner surface 19 of the vine end 15.

  FIG. 6 is a specific example showing the sliding body 7. As shown in the figure, the shape has a substantially U-shaped cross section, and a guide groove 21 is formed between the two guide pieces 20 and 20. Although the method of making the sliding body 7 is not limited, it can be generally produced by casting or injection molding, and the outer surface 11 or the upper and lower surfaces of the sliding body 7 are appropriately decorated. A part of the guide groove 21 forms an accommodating part 22 in which a part of the coil spring 14 is accommodated. A spring retainer is provided at one end of the guide groove 21 and a notch 24 is formed at the other end.

  The spring retainer 23 is a portion that is pressed by the end of the coil spring 14 accommodated in the accommodating portion 16 of the temple end portion 15, and the spring receiving portion 17 provided so as to protrude from the temple end portion 15. Both ends can be sandwiched and compressed. That is, as shown in FIG. 3, if the temple 6 is pushed outward, the sliding body 7 moves backward, and the coil spring 14 is pressed by the spring pressing portion 23 to be compressed and deformed.

  A notch 24 provided at the rear end of the sliding body 7 is a groove into which a stopper 26 formed at the rear end of the temple end 15 is fitted. If the temple 6 is pushed outward, the sliding body 7 moves backward as shown in FIG. 3B, and the stopper 26 abuts against the groove bottom of the notch 24 to regulate the degree of opening of the temple 6. ing.

DESCRIPTION OF SYMBOLS 1 Front part 2 Rim 3 Yoroi 4 Connecting member 5 Nose pad 6 Crane 7 Slide body 8 Hinge 9 Butterfly piece
10 shaft screw
11 Outside
12 Outer surface
13 End face
14 Coil spring
15 vine edge
16 containment
17 Spring holder
18 Exterior
19 Inside
20 Guide pieces
21 Guide groove
22 containment
23 Spring retainer
24 Notch
25 Inner surface
26 Stopper

Claims (1)

In the frame joint structure of the eyeglass frame, the crane attached so that it can be folded on both sides of the front part can be slightly pushed outwards under the action of the spring force from the open state when wearing glasses. A sliding body with a roughly U-shaped cross section and a decorative surface is attached to the end of the temple so that it can slide, and an elastic body such as a coil spring is provided in the housing formed between the end of the temple and the sliding body. When the elastic body is sandwiched between the holding part of the sliding body and the receiving part of the temple end, the end face of the sliding body abuts against the front end of the front end of the sliding body, and the sliding body retreats when pushing the temple open. The elastic body is compressed, and a notch is formed at the rear end of the sliding body , and a stopper at the rear end of the temple end is fitted into the notch to restrict the backward movement of the sliding body. to, along the joint circumference when folding the vines Joint structure vine, characterized in that the pivot with crane.

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