JP2006195336A - Spring hinge spectacles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide spring hinge spectacles in simple structure that can securely impart elastic energizing forces to temples, are easy to assemble, and can reduce a risk of breakage resulting from metal fatigue of an elastic spring member. <P>SOLUTION: Employed is a technical means such that a temple member 3 is connected in a foldable state by being pivoted by a retaining pivot 5 by inserting a rotary piece 31 of the temple member 3 between upper and lower opposite hinge knuckle plates 13n and 13n while fixed to an end-piece 2 by at least a plurality of retaining members 4 by inserting a retaining piece 21 of the end-piece 2 between upper and lower opposite retaining knuckle plates 12n and 12n of a connecting member 1, and arranged and fixed so that a convex portion 11a of an elastic member 11 of the connecting member 1 is in a spectacle front direction, the elastic plate portion 11 being bent in a compression leg-closing direction around the convex portion 11a as a fulcrum when the temple member 3 is over-spread. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is an improvement of the spring hinge glasses, more specifically, with a simple structure, which can reliably apply an elastic biasing force to the temple, is easy to assemble, and is due to metal fatigue of the elastic spring member. The present invention relates to spring hinge glasses that can reduce the risk of failure.

  As is well known, the spring hinge glasses are elastically moved outward from the state where the temples are normally opened by incorporating a coil spring in the hinge portion where the end pieces and the temples at both ends of the front frame of the glasses are to be hinged. It is configured so that it can be expanded.

  And, by such an elastic outward spreading action, it is possible to moderately tighten the temporal region of the spectacle wearer with the temple, the wearing feeling of the spectacle is improved, and the spectacles due to excessive external force applied to the temple It became possible to prevent deformation of the front frame.

However, since the conventional spring hinge glasses are assembled with the coil spring and other intermediate parts inside the hinge mechanism (see, for example, Patent Document 1), the structure is remarkably complicated and each part is miniaturized. As a result, there is a problem in that the assembly work takes time and the manufacturing cost increases.
JP-A-9-197351 (page 3-5, FIGS. 1-4)

  The present invention has been made in view of the above-described problems with conventional spring hinge glasses, and the object of the present invention is to provide a simple structure with a reliable elastic biasing force on the temple. Another object of the present invention is to provide spring hinge glasses that can be applied and that can be easily assembled and that can reduce the risk of failure due to metal fatigue of the elastic spring member.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention is a plate-like member produced by punching an elastic metal thin plate, and the elastic plate portion 11 is formed with a convex bent portion 11a folded in a hairpin shape, while the elastic plate portion 11 A pair of fastening knuckle plates 12n and 12n are symmetrically formed on one take-out end portion of each of the end portions, and the pair of fastening knuckle plates 12n and 12n are bent in a parallel facing state vertically. And a pair of hinge knuckle plates 13n and 13n are formed symmetrically at the other take-out end portion of the elastic plate portion 11, and the pair of hinge knuckle plates A connecting member 1 in which 13n and 13n are bent vertically in a parallel facing state to form a take-out hinge piece 13;
A pair of left and right lenses L and L are members disposed at both outer ends of a spectacle front portion F formed by connecting with a bridge B, and a fixing knuckle plate 12n of a take-off fixing piece 12 of the connecting member 1 and An end piece 2 that can be inserted between the end piece 2 and a fastening piece 21 having a plurality of fastening holes 21a at the end;
A temple member 3 having a pivotable piece 31 at the end that can be inserted between the knuckle plates 13n and 13n of the take-out hinge piece 13 of the connecting member 1;
While the fastening pieces 21 of the end piece 2 are inserted between 12n and 12n of the fastening knuckle plates facing up and down, and fixed to the end piece 2 with at least a plurality of fastening members 4,
Between the upper and lower hinge knuckle plates 13n and 13n, a turning piece 31 of the temple member 3 is inserted and pivotally supported by a fixed pivot shaft 5 so that the temple member 3 can be folded. ,
By arranging and fixing the convex portion 11a in the elastic member 11 of the connecting member 1 so as to be in the front direction of the glasses, the elastic plate portion 11 is configured to have the convex portion 11a with respect to the overexpanding operation of the temple member 3. The technical means of bending in the direction of the compression closed leg using as a fulcrum was adopted.

  Further, in order to solve the above problems, the present invention, when necessary, in addition to the above means, when the upper and lower knuckle plates 12n and 12n (13n and 13n) are bent to form the take-out piece 12 (13). The technical means of cutting out and forming the slits 12b (13b) for adjusting the interval between the knuckle plates 12 (13) was adopted.

  Furthermore, in order to solve the above-described problems, the present invention employs technical means for producing the convex curved portion 11a of the elastic member 11 of the connecting member 1 in a substantially U shape in addition to the above means as necessary. did.

  Furthermore, in order to solve the above-described problems, the present invention employs technical means in which, in addition to the above means, the connecting member 1 is made of a metal plate having excellent elasticity such as a titanium thin plate.

  According to the spring hinge glasses according to the present invention, the elastic plate portion is formed with a convex bent portion that is folded in a hairpin shape, and a pair of fastening ends are provided on one of the end portions of the elastic plate portion. A knuckle plate is formed symmetrically, and the pair of fastening knuckle plates are folded vertically in a parallel facing state to form a take-off fastening piece, and at the other take-out end portion of the elastic plate portion A pair of hinge knuckle plates are formed symmetrically, and the pair of hinge knuckle plates are folded up and down in a parallel facing state to form a take-out hinge piece, and are manufactured by punching an elastic metal thin plate As a result, a connecting member having a spring property can be produced with high efficiency, and assembly is also easy.

  In addition, by arranging and fixing the convex portion of the elastic plate portion of the connecting member so as to be in the front direction of the glasses, the elastic plate portion is compressed with the convex portion as a fulcrum for the overexpanding operation of the temple member. By bending in the closed leg direction, even if elastic deformation is frequently repeated, a small displacement is sufficient, so that the restoring elasticity can be stabilized.

  Therefore, it is possible to reliably apply an elastic biasing force to the temple with a simple structure, to facilitate assembly, and to reduce the risk of failure due to metal fatigue. In addition, since the metal structure of bent metal parts is an integral part, welding and brazing work is not required, so it is possible to achieve a significant improvement in productivity and a reduction in production costs. The value is high.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in more detail with reference to the drawings specifically shown as follows.

  An embodiment of the present invention will be described with reference to FIGS. In the figure, reference numeral 1 designates a connecting member. The connecting member 1 is manufactured by punching an elastic metal thin plate, and the elastic plate portion 11 has a convex bent portion 11a that can be folded back into a hairpin shape. It is formed. In this embodiment, the convex curved part 11a can be made into a substantially U shape, and this stress can be equalized.

  Thus, by producing by simple plate work such as punching a thin metal plate, it is inexpensive and can be easily assembled. At this time, for example, β-titanium, titanium palladium alloy, white, beryllium copper, stainless steel (sus 402j2-CSP) can be used as the metal thin plate having good corrosion resistance and toughness. In this embodiment, a β-titanium thin plate having a thickness of 0.7 mm is punched out.

  Further, a pair of fastening knuckle plates 12n and 12n are formed symmetrically at one take-out end portion of each end portion of the elastic plate portion 11, and the pair of fastening knuckle plates 12n and 12n are connected to the pair of fastening knuckle plates 12n and 12n. Can each be formed with a stop hole 12a (in this embodiment, two each), and can be folded up and down in a parallel facing state to form the take-off stop piece 12.

  When the upper and lower fastening knuckle plates 12n and 12n are bent to form the take-off fastening piece 12, the slits 12b for adjusting the spacing between the fastening knuckle plates 12 can be removed. The take-off fastening piece 12 can be formed by twisting the upper and lower fastening knuckle plates 12 at the base of the slit 12b and bending the upper and lower fastening knuckle plates 12 in a parallel facing state with appropriate gaps.

  Similarly, a pair of hinge knuckle plates 13n and 13n are formed symmetrically at the other take-out end portion of the elastic plate portion 11, and the pair of hinge knuckle plates 13n and 13n are respectively provided with retaining holes. The take-out hinge piece 13 can be formed by forming 13a and bending it up and down in a parallel facing state.

  Also, what is indicated by reference numeral 2 is an end piece. The end piece 2 is a member disposed at both outer ends of a spectacle front portion F in which a pair of left and right lenses L and L are connected by a bridge B. The connecting member 1 has a fastening piece 21 at the end that can be inserted between the fastening knuckle plates 12n and 12n of the take-off fastening piece 12 and includes a plurality of fastening holes 21a.

  Furthermore, what is indicated by reference numeral 3 is a temple member 3, and this temple member 3 is a side member of the spectacles, between the knuckle plates 13n and 13n of the take-out hinge piece 13 of the connecting member 1. A rotating piece 31 that can be inserted into the end is provided at the end. The temple member 3 is integrally formed with a rotating piece 31 on the side surface on the base end side, and a hole 31a into which a later-described fixing pivot is inserted is formed at the center of the rotating piece 31. On the other hand, the modern is attached later to the opposite end of the temple member 3.

  Thus, in configuring the spring hinge glasses according to the present embodiment, first, the fastening piece 21 of the end piece 2 is inserted between the fastening knuckle plates 12n and 12n facing the top and bottom. The fixing holes 4a and at least a plurality (two in this embodiment) of fixing holes 21a are fixed to the end piece 2 by the fixing members 4, respectively.

  Next, the rotating piece 31 of the temple member 3 is inserted between the hinge knuckle plates 13n and 13n facing the upper and lower sides, and is pivotally supported by the fastening pivot shaft 5 at the retaining hole 12a and the saddle hole 31a. By connecting the temple member 3 in a foldable manner, the spring hinge glasses of this embodiment are configured.

  At this time, the protruding portion 11a of the connecting member 1 is taken out in the front direction of the eyeglasses and folded back into a hairpin shape. The point that the portion 11 bends in the compression closed leg direction with the convex curve portion 11a as a fulcrum is the greatest feature in this embodiment.

  That is, in this way, the elastic plate portion 11 bends in the compression closed leg direction with the convex portion 11a as a fulcrum, so that even if elastic deformation is frequently repeated, a small displacement is sufficient, so that the restoring elasticity is stabilized. It is possible to effectively prevent breakage of the connecting member 1 due to metal fatigue in the convex portion 11a.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”. The material used is not limited to β-titanium, and other elastic metals such as titanium-palladium alloy and elastic materials such as high-elasticity resin materials may be employed and belong to the technical scope of the present invention.

It is a whole perspective view showing the spectacles of embodiment of this invention. It is a partial exploded perspective view showing the spectacles of the embodiment of the present invention. It is a whole top view showing the spectacles of embodiment of this invention. It is a front view showing the connection component before the bending process of embodiment of this invention. It is a perspective view showing the connection component after the bending process of embodiment of this invention.

Explanation of symbols

1 Connecting member
11 Elastic plate
12 Take-off piece
12n Fastening knuckle plate
12b slit
13 Take-out hinge piece
13n Hinge knuckle plate
13b Slit 2 End piece
21 Fastening piece
21a Fastening hole 3 Temple member
31 Rotating piece
31a 壷 Hole 4 Fastening Member 5 Fastening Axis L Lens B Bridge F Eyeglass Front

Claims (4)

It is a plate-like member produced by punching an elastic metal thin plate, and the elastic plate portion 11 is formed with a convex bent portion 11a folded back into a hairpin shape, among the end portions of the elastic plate portion 11 A pair of fastening knuckle plates 12n and 12n are formed symmetrically on one take-out end portion, and the pair of fastening knuckle plates 12n and 12n are bent vertically and parallel to face each other. A pair of hinge knuckle plates 13n and 13n are formed symmetrically on the other take-out end portion of the elastic plate portion 11 and the pair of hinge knuckle plates 13n and 13n are vertically arranged. A connecting member 1 which is bent in a parallel face-to-face state and constitutes a take-out hinge piece 13;
A pair of left and right lenses L and L are members disposed at both outer ends of a spectacle front portion F formed by connecting with a bridge B, and a fixing knuckle plate 12n of a take-off fixing piece 12 of the connecting member 1 and An end piece 2 that can be inserted between the end piece 2 and a fastening piece 21 having a plurality of fastening holes 21a at the end;
A temple member 3 having a pivotable piece 31 at the end that can be inserted between the knuckle plates 13n and 13n of the take-out hinge piece 13 of the connecting member 1;
While the fastening pieces 21 of the end piece 2 are inserted between 12n and 12n of the fastening knuckle plates facing up and down, and fixed to the end piece 2 with at least a plurality of fastening members 4,
Between the upper and lower hinge knuckle plates 13n and 13n, a turning piece 31 of the temple member 3 is inserted and pivotally supported by a fixed pivot shaft 5 so that the temple member 3 can be folded. ,
By arranging and fixing the convex portion 11a in the elastic member 11 of the connecting member 1 so as to be in the front direction of the glasses, the elastic plate portion 11 is configured to have the convex portion 11a with respect to the overexpanding operation of the temple member 3. Spring hinge glasses characterized by bending in the compression closed leg direction with fulcrum as the fulcrum.   When the upper and lower knuckle plates 12n and 12n (13n and 13n) are bent to form the carry-out piece 12 (13), the slits 12b (13b) for adjusting the interval between the knuckle plates 12 (13) are cut out. The spring hinge glasses according to claim 1, wherein:   The spring hinge glasses according to claim 1 or 2, wherein the convex curved portion 11a of the elastic member 11 of the connecting member 1 is formed in a substantially U shape.   The spring hinge glasses according to any one of claims 1 to 3, wherein the connecting member 1 is made of a metal plate having excellent elasticity such as a titanium thin plate.

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