JP2008281808A - Thin spring hinge mechanism for eyeglasses temple - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin spring hinge mechanism for an eyeglasses temple, capable of achieving high-fashionability smart temple design, hardly causing troubles of a temple opening/closing function due to the backlash of a hinge or the loosening of a fixing screw, and also, having a simple structure, therefore, the manufacturing cost thereof is low. <P>SOLUTION: An insertion channel part having an opening that opens to either of the inside surface side or the outside surface side is provided at the front end portion of a thin strip-like temple 1, and the hinge piece is fixedly arranged on the upper or/and lower part of the opening of the insertion channel part. A clearance hole is formed in the insertion channel part formed in the temple 1 to be positioned on the opposite surface side of the opening corresponding to the hinge piece, and also, a leaf spring is fitted into the channel groove of the insertion channel part, and also, the hinge piece is constituted by mutually hinge-connecting a rotating hinge piece having a cam-shaped rotating circumferential edge and a pivot. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention improves the thin spring hinge mechanism of eyeglass temples. Specifically, it can realize a fashionable smart temple design, the temples do not loosen loosely, and the structure is simple and inexpensive. It is related with the thin spring hinge mechanism of the spectacles temple which can be performed.

  As is well known, in a spectacle frame, in order to obtain a stable temple mounting state on the temporal region, when the temple is expanded, the temple is urged inward by an elastic member to generate a high repulsive force. A spring hinge mechanism is often adopted.

  As a conventional hinge hinge mechanism for a spectacle frame, a coil spring is built in the hinge connecting portion of the temple, and the coil spring is compressed when the temple is opened, and the temple is placed inside by utilizing the repulsive force of the compression spring. Those that can be biased in the direction are well known (for example, see Patent Document 1).

  However, in the above-mentioned conventional spring hinge mechanism, a cylindrical mounting hole had to be provided in the temple in order to incorporate a coil spring, so it was necessary to design the temple thicker than usual, realizing a slim temple design could not.

  On the other hand, conventionally, as described in <Patent Document 2>, a leaf spring portion is provided on the temple, and an arcuate tongue piece is fixed to the armor portion, and the end portion of the tongue piece opens the temple. A spring hinge structure for a spectacle frame is also known, in which the temple spring portion of the temple is pressed and bent so that the temple can be biased inward by the repulsive force of the bent leaf spring. ing.

  However, in any of the above-described conventional spring hinge mechanisms, even if the temple is designed to be a thin and slim design, the arcuate tongue attached to the armor will impair the appearance of the temple, and the design will leave an impression that it will be unwieldy. I was dissatisfied with the design.

  In addition, in the spring hinge mechanism, since the end of the tongue acting on the leaf spring is disposed at a position away from the hinge serving as a fulcrum, the action portion of the tongue on the hinge when the leaf spring is pressed. The applied load becomes large, which may cause the hinge periphery to wear out quickly, and the hinge may be loose.

Further, in the above <Document 2>, a method of fixing a leaf spring with a screw member as means for forming a leaf spring portion on the temple is disclosed, but this method only complicates the assembly work of the spectacle frame. In addition, the fastening screw is loosened by the repeated opening and closing operation of the temple, and an appropriate repulsive force may not be obtained from the leaf spring portion.
JP-A-6-242406 (page 2-5, FIGS. 1-3) Japanese Patent No. 3686292 (pages 2-6, FIGS. 1-9)

  The present invention has been made in view of the above-described problems, and the object of the present invention is to make it possible to stably maintain the state of wearing the temple on the temporal region when wearing glasses. It is possible to realize a smart temple design with high fashionability, and at the same time, the temple opening and closing function is not likely to be disturbed due to rattling of the hinge or loosening of the fixing screw, and the structure is simple and the manufacturing cost is low An object is to provide a thin spring hinge mechanism for an inexpensive eyeglass temple.

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

In other words, the present invention is a spring hinge mechanism for a spectacle temple that causes an elastic repulsive force to open and close the temples 1 and 1 of the spectacle frame,
The front end portion of the thin strip-shaped temple 1 is provided with an insertion channel portion 11 having an opening portion 11a opened on either the inner surface side or the outer surface side, and / or an upper portion of the opening portion 11a of the insertion channel portion 11 and / or The butterfly pieces 12 and 12 are fixed to the lower portion, and the insertion channel portion 11 formed in the temple 1 is provided with a relief hole 13 on the opposite surface side of the opening portion 11a corresponding to the butterfly pieces 12 and 12. Forming and inserting a leaf spring 14 into the channel groove 11b of the insertion channel portion 11,
The butterfly pieces 12 and 12 are hinge-connected to each other by a pivoting butterfly 15 and a pivot 16 in which a pivoting peripheral edge 15a forms a cam shape. A feature is that the convex bent portion 15b comes into contact with the leaf spring 14 and bends the leaf spring 14 in the escape hole 13 to give an elastic repulsive force to the opening and closing operation of the temple 1.

  In addition, in the present invention, in order to solve the above-described problem, a rotating butterfly piece 15 is provided at the take-out end of the bracket end B disposed at the side end portion of the front frame F in addition to the above means as necessary. The rotating butterfly piece 15 and the butterfly pieces 12 and 12 of the temple 1 are hinged to each other, and the convex bent portion 15b of the rotating butterfly piece 15 bends the leaf spring 14 located in the escape hole 13. Thus, a technical means for generating a repulsive force when the temple 1 is opened and closed can be employed.

  Further, in the present invention, in order to solve the above-described problems, technical means for punching and providing the escape hole 13 to the side surface in the temple 1 can be employed in addition to the above-described means as necessary.

  Further, in the present invention, in order to solve the above-described problem, in addition to the above means, slits S and S are provided in parallel in the fitting portion 14b of the leaf spring 14 inserted in the temple 1 as necessary. A technical means of extending the curved portion 31 can be employed.

  In the present invention, in order to solve the above-described problem, in addition to the above-described means, a concave or convex hooking portion 14c is formed on the leaf spring 14 inserted in the temple 1, and this pulling is performed. It is possible to adopt a technical means for enabling the leaf spring 14 to be extracted from the insertion channel portion 11 by pushing and pulling the hook portion 14c with a jig.

  Further, in the present invention, in order to solve the above-described problems, technical means of providing a slot portion 17 connected to the insertion channel portion 11 of the temple 1 in addition to the above-described means as necessary may be adopted. it can.

Further, in the present invention, in order to solve the above-mentioned problem, in addition to the above-described means, a spring hinge mechanism for a spectacle temple that generates an elastic repulsive force in the opening and closing operation of the temples 1 and 1 of the spectacle frame. There,
The front end portion of the thin strip-shaped temple 1 is provided with an insertion channel portion 11 having an opening portion 11a opened on either the inner surface side or the outer surface side, and / or an upper portion of the opening portion 11a of the insertion channel portion 11 and / or While fixing the butterfly pieces 12 and 12 at the lower part, while inserting the leaf spring 14 provided with the bent portion 14d or the bent portion 14e into the channel groove 11b of the insertion channel portion 11,
By connecting the butterfly pieces 12 and 12 by a pivot 16 and a pivot butterfly piece 15 whose pivot peripheral edge 15a forms a cam shape, a convex curve of the cam-shaped peripheral edge 15a when the pivot butterfly piece 15 rotates. It is possible to employ a technical means in which the portion 15b presses the bent portion 14d or the bent portion 14e of the leaf spring 14 to give an elastic repulsive force to the opening and closing operation of the temple 1.

  In the present invention, an insertion channel portion having an opening portion and a relief hole is formed at the front end portion of the thin strip temple, and a leaf spring is inserted into the insertion channel portion, and the temple is sandwiched between the opening portions. The arranged butterfly piece is constructed by connecting a cam-like rotating butterfly hinge, so that when the temple is expanded, the convex bent portion of the rotating butterfly presses the leaf spring and bends. Furthermore, the bent leaf spring urges the temple to generate an elastic repulsive force, so that the left and right temples can firmly hold the temporal region to obtain a stable wearing state. it can.

  Furthermore, the use of a sheet-shaped leaf spring as an elastic member makes it possible to slim the temple, and the leaf spring can be bent by a rotating butterfly so that the appearance of the temple is damaged. This eliminates the need for such a member, so that it is possible to realize a temple design that is very thin, highly fashionable and smart.

  On the other hand, by adopting a structure in which the leaf spring is pressed by the convex bent portion formed on the rotating butterfly piece, the position of the hinge serving as the fulcrum and the action portion that bends the leaf spring can be made extremely close. Therefore, it is possible to significantly reduce the load applied to the hinge from the action part, and it is also possible to suppress functional obstacles such as rattling of the hinge due to wear of the peripheral part of the pivot.

  In addition, since a fixing member such as a screw member is not required for attaching the plate spring to the temple, a simple assembling operation is only required to insert the plate spring into the insertion channel portion. In addition, the screw member is loosened. There will be no decline in the biasing force.

  Therefore, according to the present invention, it is possible to provide a spectacle temple having a thin spring hinge mechanism that is excellent in design and durability in terms of function and is very convenient in terms of manufacturing. Therefore, the practical utility value of the present invention is very high. .

“Example 1”
First, a first embodiment of the present invention will be described with reference to FIGS. First, what is indicated by reference numeral 1 is a temple.

  Therefore, the configuration of the present embodiment will be described below. First, in this embodiment, the insertion channel portion 11 having an opening portion 11a having an inner surface opened is provided at the front end portion of the belt-shaped metal temple 1, and the temple of the insertion channel portion 11 is sandwiched between the opening portions 11a. Butterfly pieces 12 and 12 were provided on the upper and lower sides (see FIGS. 1 and 2).

  And, on the outer surface side of the inner wall of the insertion channel portion 11 formed in the temple 1, a relief hole 13 is formed at a location corresponding to the butterfly pieces 12 and 12, and the channel of the insertion channel portion 11 is formed. A sheet-like plate spring 14 was inserted into the groove 11b (see FIG. 3).

  In this embodiment, SK steel is used as the material of the leaf spring 14 because it is inexpensive and easy to form. However, it is of course possible to adopt a copper alloy such as stainless steel or beryllium copper, titanium alloy, etc. Good.

  Further, between the butterfly pieces 12 and 12 provided on the temple 1, it is disposed at the take-out end of the bracket end B fixed to the rear end of the side end of the front frame F, and the rotating peripheral edge 15a has a cam shape. Is inserted from the inside, and is pivotally connected to the butterfly pieces 12 and 12 by a pivot 16 so that the cam-shaped peripheral edge 15a is curved when the rotary butterfly piece 15 is rotated. The portion 15b is configured to contact the leaf spring 14 through the opening portion 11a.

  With the above configuration, as shown in FIG. 4, when the temple 1 is opened outward at a predetermined angle or more, the bent portion of the leaf spring 14 pressed by the convex bent portion 15 b of the rotating butterfly piece 15. 14a can be bent in the escape hole 13 to bend the leaf spring 14, so that the elastic repulsive force of the bent leaf spring 14 can bias the temple 1 inward, By the urging action, the left and right temples 1 and 1 can always pinch the temporal region to obtain a stable wearing state.

  The magnitude of the repulsive force of the bent leaf spring 14 in the temple can be adjusted not only by the material, thickness, and size of the leaf spring 14, but also by a relief hole 13 provided in the inner wall of the insertion channel portion 11. It is also possible to adjust by the size and depth of the lens and the shape of the convex curved portion 15b of the rotating butterfly piece 15.

  In addition, because a very thin sheet spring 14 with a plate thickness of about 0.1 mm is used as an elastic member, the temple can be designed in a very slim strip shape, and in addition, the escape hole 13 is provided. By not penetrating to the outer surface of the temple 1, the appearance of the temple 1 is not unnecessarily impaired.

  Furthermore, by adopting a structure in which the leaf spring 14 is pressed by the convex curved portion 15b formed on the rotating butterfly piece 15, the position of the hinge serving as a fulcrum and the action portion that bends the leaf spring 14 can be made extremely close. Thus, the load applied to the hinge from the working portion can be greatly reduced, so that it is possible to suppress functional obstacles such as rattling of the hinge due to wear of the pivot.

  The above structure eliminates the need for a fastening member for attaching the leaf spring 14 to the temple 1, so that it can be assembled simply by inserting the leaf spring 14 into the plug-in channel section 11, and in addition, a screw. The biasing force of the temple attached 1 does not decrease due to the looseness of the member.

  In this embodiment, the slits S and S are arranged in parallel on the front fitting portion 14b of the leaf spring 14 to be inserted into the temple 1, so that the bending portion 14a is extended to the front of the leaf spring 14. The bent portion 14a is extended to the end.

  In the present embodiment, a hole-like hooking portion 14c is formed in the leaf spring 14 inserted in the temple 1, and a jig or the like is inserted into the hooking portion 14c to push and pull the leaf spring 14. It can be easily extracted from the built-in channel section 11.

  Further, the temple 1 is provided with a slot portion 17 connected to the rear portion of the insertion channel portion 11, and the leaf spring 14 in the insertion channel portion 11 is tightly fitted into the slot portion 17. Suppression and displacement were suppressed.

“Example 2”
Next, a second embodiment of the present invention will be described in detail below with reference to FIGS. First, in the present embodiment, an insertion channel 11 having an open portion 11a is formed on the outer surface side of the temple 1, and the front frame F side is interposed between butterfly pieces 12 and 12 provided with the open portion 11a interposed therebetween. By inserting the pivot butterfly 15 formed at the rear end of the bracket end B connected to the end and connecting the hinge, when the temple 1 is opened to the outside, the convex bent portion 15b of the pivot butterfly 15 is It is possible to apply a repulsive force to the opening / closing operation of the temple 1 by bending the spring 14 inward (see FIGS. 5 and 6).

  Further, in this embodiment, since the escape hole 13 is punched and provided on the inner side surface of the temple 1, the deformation of the leaf spring 14 is not limited by the thickness of the temple 1, so that the leaf spring 14 is larger than the thickness of the temple 1. It can be bent (see FIG. 7).

  Further, in the leaf spring 14 inserted into the insertion channel portion 11 of the temple 1, slits S and S are formed on both sides to extend the bent portion 14a, thereby further shortening the leaf spring 14. On the other hand, since the hooking portion 14c is formed in a protruding shape, the leaf spring 14 can be easily extracted from the insertion channel portion 11 by hooking a claw or the like.

“Example 3”
Next, a third embodiment of the present invention will be described in detail below with reference to FIGS. In this embodiment, the plastic temple 1 is used, and the insertion channel portion 11 of the temple 1 is configured by inserting a leaf spring 14 having a bent piece portion 14d in the middle region portion. When the temple 1 is opened to the outside, the bent portion 15b of the rotating butterfly piece 15 presses and bends the bent piece portion 14d so that the temple 1 is bent by the elastic action of the deformed bent piece portion 14d. It can be energized (see FIGS. 8 and 9).

  Further, in the above structure, the temple 1 in which the leaf spring 14 does not appear on the appearance can be made thinner, and no local load is applied to the insertion channel portion 11 when the leaf spring 14 is deformed. Therefore, even a plastic temple with relatively low rigidity can be used without any problem without causing deformation.

  In this embodiment, slot portions 17 and 17 are formed around the insertion channel portion 11 of the temple 1, and a leaf spring 14 is closely fitted in the slot portions 17 and 17 so that the insertion portion from the insertion channel portion 11 is provided. Reinforcement of leaf spring 14 retention.

Example 4
Next, a fourth embodiment of the present invention will be described in detail below with reference to FIGS. In the present embodiment, a leaf spring 14 having a bent portion 14e formed in the middle region is used, and a slot portion 17 is formed at the rear portion of the insertion channel portion 11 of the temple 1, and the slot portion 17 is formed. By inserting the end of the bent portion 14e into the bent bent portion 15b, the convex bent portion 15b of the rotating butterfly piece 15 presses the bent portion 14e to return the bent portion. The temple 1 can be urged by the repulsive force (see FIGS. 10 and 11).

  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 of the plate may be not only metal or plastic, but also other materials or combinations thereof, and the material of the leaf spring 14 is not limited to metal material and has elasticity and strength suitable for use. The plastic leaf spring 14 may be used.

  In addition, the hinge connecting portion of the temple 1 may be in the form of male and female reversal in which the upper and lower parts of the butterfly piece 12 are connected with the rotating butterfly pieces 15 and 15 as shown in FIG. The butterfly piece 12 and the rotating butterfly piece 15 may be connected to each other, and both belong to the technical scope of the present invention.

  In recent years, since spring hinges have been frequently used to improve the wearability of the spectacle frame, various spring hinge mechanisms have been developed in the spectacles industry. However, in the market, it is still impossible to see glasses with a spring hinge mechanism and a smart temple design.

  Under such circumstances, the thin spring hinge mechanism of the eyeglass temple of the present invention is not only capable of realizing a slim and highly fashionable temple design, but also useful for improving the functional durability of the spring hinge mechanism. Since it is a technology, there is a great demand in the market, and it can be said that the industrial utility value of the present invention is very high.

It is a whole perspective view showing the spring hinge mechanism in Example 1 of the present invention. It is explanatory sectional drawing showing the spring hinge mechanism in Example 1 of this invention. It is a disassembled perspective view showing the spring hinge mechanism in Example 1 of this invention. It is explanatory sectional drawing showing the spring hinge mechanism at the time of temple expansion in Example 1 of this invention. It is an expansion perspective view showing the spring hinge mechanism in Example 2 of the present invention. It is explanatory sectional drawing showing the spring hinge mechanism in Example 2 of this invention. It is a disassembled perspective view showing the spring hinge mechanism in Example 2 of this invention. It is a description perspective view showing the spring hinge mechanism in Example 3 of the present invention. It is explanatory sectional drawing showing the spring hinge mechanism in Example 3 of this invention. It is a description perspective view showing the spring hinge mechanism in Example 4 of the present invention. It is explanatory sectional drawing showing the spring hinge mechanism in Example 4 of this invention. It is an explanatory perspective view showing a spring hinge mechanism in a modification of the present invention.

Explanation of symbols

1 temple
11 Plug-in channel section
11a Open part
11b Channel groove
12 Butterfly
13 Escape hole
14 Leaf spring
14a flexure
14b fitting
14c Hook
14d bent piece
14e Inflection
15 Rotating butterfly
15a Turning edge
15b Convex part
16 Pivot
17 Slot F Front frame B Bracket S S Slit

Claims (7)

A spring hinge mechanism for a spectacle temple that causes an elastic repulsive force to open and close the temples 1 and 1 of the spectacle frame,
The front end portion of the thin strip-shaped temple 1 is provided with an insertion channel portion 11 having an opening portion 11a opened on either the inner surface side or the outer surface side, and / or an upper portion of the opening portion 11a of the insertion channel portion 11 and / or The butterfly pieces 12 and 12 are fixed to the lower portion, and the insertion channel portion 11 formed in the temple 1 is provided with a relief hole 13 on the opposite surface side of the opening portion 11a corresponding to the butterfly pieces 12 and 12. Forming and inserting a leaf spring 14 into the channel groove 11b of the insertion channel portion 11,
The butterfly pieces 12 and 12 are hinge-connected to each other by a pivoting butterfly 15 and a pivot 16 in which a pivoting peripheral edge 15a forms a cam shape. The eyeglass temple is characterized in that a convex bent portion 15b comes into contact with the leaf spring 14 and bends the leaf spring 14 in the escape hole 13 to give an elastic repulsive force to the opening and closing operation of the temple 1. Thin spring hinge mechanism.   A rotating butterfly piece 15 is provided at the take-out end of the bracket end B arranged at the side end of the front frame F, and the rotating butterfly piece 15 and the butterfly pieces 12 and 12 of the temple 1 are hinged to each other. 2. The spectacles according to claim 1, wherein the convex bent portion 15b of the rotating butterfly piece 15 deflects the leaf spring 14 located in the escape hole 13 to generate a repulsive force when the temple 1 is opened and closed. Temple spring hinge mechanism.   3. A thin spring hinge mechanism for eyeglass temples according to claim 1 or 2, wherein the temple 1 has a relief hole 13 formed in a punched shape.   The slits S and S are juxtaposed to the fitting part 14b of the leaf spring 14 inserted in the temple 1, and the bending part 14a is extended. Thin spring hinge mechanism of eyeglass temple as described in.   A hole-like or protruding hook 14c is formed in the leaf spring 14 inserted in the temple 1, and the leaf spring 14 is extracted from the insertion channel 11 by pushing and pulling the hook 14c with a jig. The thin spring hinge mechanism of the eyeglass temple according to any one of claims 1 to 4, characterized in that it is possible.   The thin spring hinge mechanism for eyeglass temples according to claim 1, wherein a slot portion 17 is provided so as to be connected to the insertion channel portion 11 of the temple 1. A spring hinge mechanism for a spectacle temple that causes an elastic repulsive force to open and close the temples 1 and 1 of the spectacle frame,
The front end portion of the thin strip-shaped temple 1 is provided with an insertion channel portion 11 having an opening portion 11a opened on either the inner surface side or the outer surface side, and / or an upper portion of the opening portion 11a of the insertion channel portion 11 and / or While fixing the butterfly pieces 12 and 12 to the lower part, while inserting the leaf spring 14 having the bent portion 14d or the bent portion 14e into the channel groove 11b of the insertion channel portion 11,
When the butterfly pieces 12 and 12 are hinged to each other by a pivot 16, the pivoting butterfly 15 having a pivoting peripheral edge 15a forms a cam shape, A thin spring hinge mechanism for a spectacle temple, wherein the convex bent portion 15b presses the bent portion 14d or the bent portion 14e of the leaf spring 14 to give an elastic repulsive force to the opening and closing operation of the temple 1.

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