JP3001779U - Connector for eyeglasses - Google Patents

Abstract

(57) [Summary] [Purpose] The eyeglass members are easily and reliably connected to each other by one-touch operation. [Constitution] It is composed of a cylindrical member 2 and a shaft member 3. Tubular member 2
Has a holding plate 5 at the other end of the tubular portion 4 provided with an insertion hole 6 that is opened at one end of the tubular portion and is tapered. The tubular portion 4 is provided with split grooves 7 which are open at one end and which are long in the axial direction, in the vertical and horizontal directions. On the inner surface portion of the insertion hole 6, saw blade-shaped first engagement portions 9 having an engagement surface 8 toward the tip of the insertion hole are formed in multiple stages. Further, the shaft member 3 has a holding plate 11 at the base end portion of the tapered shaft portion 10 that is pushed into the insertion hole 4. On the outer surface portion of the shaft portion 10, second engaging portions 13 that can engage with the first engaging portion 9 are provided in multiple stages. An elastic packing material 15 is attached to the base end portion of the shaft portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector used for connecting eyeglass members to each other.

[0002]

[Prior art]

 The conventional connecting means for connecting the spectacle members to each other has been to connect the members to each other using screws and nuts, or to connect the members to each other using screws.

FIG. 13 shows a state in which an end portion a1 of an end piece a is connected to a lens b, and an insertion hole e formed by inserting a bush d into a through hole c provided in the lens b and an end piece of the end piece. A screw g is inserted into the insertion hole f formed in the end portion a1 from the one surface side of the lens, and a nut i is screwed into a screw shaft portion h projecting to the other surface side of the lens for tightening.

Further, FIG. 14 shows a state in which the hinge piece j on the side of the armor a and the hinge piece m on the side of the temple k are rotatably connected using a screw n. Specifically, after inserting the screw n into the insertion hole o of the bearing piece on the hinge piece m and the insertion hole p of the bearing piece of the hinge piece j, the screw portion q on the tip side thereof is inserted. Is screwed into the screw hole r of the bearing piece below the hinge piece m and tightened.

Further, FIG. 15 shows that the connecting protrusion t of the nose pad s is installed in the box u, and the screw w for inserting the inserting hole v provided on one side of the box is inserted into the inserting hole of the connecting protrusion t. After being inserted through x, the threaded portion y on the tip side thereof is screwed into a screw hole z provided on the other side of the box and tightened.

[0006]

[Problems to be solved by the device]

 However, when such a connecting means is used, there is a problem that looseness of the nut or screws causes looseness in the connecting portion, and the connection is likely to become unstable. In addition, the rotation operation must be repeated many times for screwing nuts and screwing in screws, and there was a problem that the connecting work was troublesome.

An object of the present invention is to provide a connector for eyeglasses that can solve the above problems.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention adopts the following means. That is, a connector for spectacles according to the present invention (hereinafter referred to as a connector) is made of a resin having a holding plate projecting from the other end of the tubular portion which is provided with an insertion hole that is tapered at one end of the tubular portion. And a shaft member formed by projecting a holding plate at the base end of the tapered shaft part that is pushed into the insertion hole. The tubular portion of the tubular member is provided with a plurality of split grooves which are open at one end and extend in the axial direction to reach the other end of the tubular portion at substantially equal angular intervals in the circumferential direction. , The first engaging portion is formed in multiple stages in the axial direction of the insertion hole. A second engaging portion that can engage with the first engaging portion is formed on the outer surface of the shaft portion of the shaft member in multiple stages in the axial direction, and the base end side of the shaft portion is formed. The part is characterized in that an elastic packing material made of a soft resin is attached to the holding plate such that the shaft part is inserted into the insertion hole penetrating the elastic packing material and the pinch plate is brought into contact therewith.

The first engaging portion may be formed in a saw-tooth shape having an engaging surface toward the tip of the insertion hole, or may be formed in a regular triangular cross section.

Further, the insertion hole of the cylindrical portion may be formed in a tapered circular hole or a tapered rectangular hole. The shaft portion is formed in a round shaft shape or a rectangular shaft shape which is tapered accordingly.

Further, the outer shape of the tubular portion is formed such that the cross-sectional outer shape is formed into a square shape (having a square shape, a triangular shape, or the like) or a circular shape which is the same over the entire length, or is formed to be tapered. Good too.

In each of the connecting tools, the insertion hole may be opened at the other end of the tubular portion.

[0013]

[Action]

 However, the through holes provided in the plurality of eyeglass members to be connected are put into a communicating state, and the tubular portion of the tubular member is inserted substantially intimately from one end side of the communicating holes, and the holding plate is attached to the peripheral portion of one end of the communicating holes. (The length of the tubular portion is set so that the tip of the tubular portion does not protrude from the other end of the communication hole in the contact state), and then from the other end side of the communication hole, The shaft portion of the shaft member is pushed into the insertion hole of the tubular member, and the second engaging portion of the shaft portion is engaged with the first engaging portion of the tubular member. As the amount of push-in of the shaft portion increases, the portion between the split grooves of the cylindrical portion is expanded outwardly, whereby the outer surface of the cylindrical portion presses the inner peripheral surface of the communication hole. Then, the elastic packing material attached to the shaft portion is elastically compressed to perform the final engagement between the engaging portions. As a result, the holding plate of the tubular member and the holding plate of the shaft member sandwich the spectacle members, and the members are stably connected to each other without looseness.

[0014]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. First Embodiment In FIGS. 1 to 3, a connector 1 according to the present invention comprises a tubular member 2 and a shaft member 3.

The tubular member 2 is formed by projecting a disc-shaped holding plate 5 at the other end of the tubular portion 4, and is formed of, for example, a nylon resin material. The tubular portion 4 has a circular insertion hole 6 which is opened at one end of the tubular portion and tapers off over its entire length, and its cross-sectional outer shape is a square shape, and the length of each side is the entire length of the tubular portion. Is the same across. Further, a split groove 7 is provided at a central portion in the width direction of each surface portion of the tubular portion 4 and opens at one end of the tubular portion and extends in the axial direction to reach the other end side of the tubular portion. On the inner surface portion of the insertion hole, there is provided a sawtooth-shaped first engagement portion 9 having an engagement surface 8 toward the tip of the insertion hole and extending in the circumferential direction in a multi-step manner in the axial direction of the insertion hole. Is being formed.

The shaft member 3 has a holding plate 11 projecting from a large-diameter end of a shaft portion 10 formed into a tapered circular shaft that is pushed into the insertion hole 6 of the tubular member 2. , For example, it is molded from a nylon resin material. On the outer surface of the shaft portion 10, there is provided a second sawtooth-shaped engaging portion 13 having an engaging surface 12 capable of abutting the engaging surface 8 of the engaging portion 9 in a multi-step manner in the axial direction. On the large diameter side of the shaft portion 10 (the portion on the base end side of the shaft portion), an elastic packing material 15 made of a soft resin (for example, silicon resin) and having an annular shape is formed. The shaft portion 10 is inserted through the insertion hole 16 and attached to the holding plate 11 in a contact state.

2 to 3 show a case where the connecting portion 17 a of the temple 17 and the lens 19 are connected by using the connecting tool 1. In the figure, a square hole 20 is provided in the connecting portion of the lens 19, and a square insertion hole 21 is provided in the connecting portion 17a of the temple. The square hole 20 and the square through hole 21 are aligned with each other, and the resin washer 22 is interposed between the connecting portion and the lens so that the cylindrical portion 4 of the cylindrical member 2 is connected to the communicating hole from one side of the lens. It is inserted in a close contact state. The length of the tubular portion 4 is such that when the holding plate 5 is in contact with the peripheral edge portion 23 of one end of the communication hole (that is, in contact with the outer surface of the connecting portion 17a), the distal end 4a of the tubular portion is other than the lens 19. It is set so that it does not project to the surface side.

Thereafter, as shown in FIG. 3, the shaft portion 10 of the shaft member 3 is pushed into the insertion hole 6 of the tubular member from the other surface side of the lens, and the portion between the split grooves of the tubular portion is accompanied by the pushing. 25 is expanded and the outer surface portion of the tubular portion is appropriately elastically compressed, and the outer surface 24 of the tubular portion is pressed against the inner peripheral surface 26 of the communication hole. When the elastic packing material 15 is slightly compressed and the final engagement between the first engagement portion 9 on the cylinder side and the second engagement portion 13 on the shaft side is performed, the elastic packing 15 is Due to the elastic restoring action of, the engaged state of both engaging portions 9 and 13 is stably maintained. As a result, the connecting portion 17a and the lens 19 are sandwiched by the sandwiching plates 5 and 11, and there is no risk of loosening the connection.

Second Embodiment FIGS. 4 to 5 show another embodiment of the connector 1 according to the present invention, which comprises a tubular member 2 and a shaft member 3.

The tubular member 2 is formed by projecting a disc-shaped holding plate 5 at the other end of the tubular portion 4, and is formed of, for example, a nylon resin material. The tubular portion 4 has a circular insertion hole 6 which is open at one end of the tubular portion and tapers off over its entire length, and its cross-sectional outer shape is circular, and its diameter is the same over the entire length of the tubular portion. Is. Further, split grooves 7 that open at one end of the tubular portion 4 and extend in the axial direction to reach the other end of the tubular portion are provided at an angular pitch of approximately 90 degrees. On the inner surface portion of the insertion hole, there is provided a saw blade-shaped first engagement portion 9 having an engagement surface 8 toward the tip of the insertion hole and extending in the circumferential direction in multiple stages in the axial direction of the insertion hole. Has been formed.

The shaft member 3 has a holding plate 11 projecting from a large-diameter end of a shaft portion 10 formed in a tapered circular shaft shape that is inserted into the insertion hole 6 of the tubular member 2. , For example, it is molded from a nylon resin material. On the outer surface of the shaft portion 10, there is provided a second sawtooth-shaped engaging portion 13 having an engaging surface 12 capable of abutting the engaging surface 8 of the engaging portion 9 in a multi-step manner in the axial direction. On the large diameter side of the shaft portion 10 (the portion on the base end side of the shaft portion), an elastic packing material 15 made of a soft resin (for example, silicon resin) and having an annular shape is formed. The shaft portion 10 is inserted through the insertion hole 16 and attached to the holding plate 11 in a contact state.

FIG. 5 shows a case where the hinged part of the hinge 26 is constructed by using such a connecting tool. In the figure, one hinge piece 27 is, for example, a pedestal 30 brazed to the inner surface of an end piece 29, and upper and lower bearing pieces 32, 32 each having an insertion hole 31 provided therein. The other hinge piece 33 has a pedestal 35 brazed to the inner surface of the front end of the temple 17, and a bearing piece 37 fitted between the bearing pieces and provided with an insertion hole 36. . A bearing piece 37 is fitted between the upper and lower bearing pieces 32, 32 so that the through holes are aligned with each other, and the tubular portion 4 of the tubular member 2 is inserted through one end of the communicating hole. There is. The length of the tube portion 4 is set so that the tip 4a of the tube portion does not project from the other end of the communication hole when the holding plate 5 is in contact with the peripheral edge of one end of the communication hole.

Further, the shaft portion 10 of the shaft member is pushed into the insertion hole 6 from the other end side of the communication hole, the elastic packing material 15 is slightly compressed, and the first engagement portion 9 on the cylinder portion side is inserted. The final engagement with the second engagement portion 13 on the shaft side is performed. In the engaged state, the portion 25 between the split grooves of the tubular portion is pushed outward and expanded. The degree of this push-out can be adjusted by the amount of push-in of the shaft, and the frictional action associated therewith can adjust the open / close hardness of the temple. If the open / close rigidity of the hinge becomes loose, push the shaft member further. As a result, the expansion of the cylindrical portion is increased, and the opening / closing rigidity of the temple is adjusted. In order to make such adjustment, it is preferable to finely set the pitch of the engaging portion.

FIG. 6 shows a case where the connecting protrusion 40 of the nose pad 39 is connected to the box 41 by using the connecting tool. The tubular portion 4 of the tubular member 2 is inserted from one end side of the communication hole formed by aligning the insertion holes 42, 42 provided on both sides of the box and the insertion hole 43 of the connecting projection, and the communication is performed. The shaft portion 10 of the shaft member 3 is pushed into the insertion hole 6 from the other end side of the hole, the elastic packing material 15 is slightly compressed, and the first engaging portion 9 on the cylindrical portion side and the second engaging portion on the shaft portion side are The last engagement with the engagement portion 13 of is performed.

Other Embodiments The connector according to the present invention may be constructed as follows. As shown in FIG. 7, the connector according to the present invention has a tubular portion 4 of a tubular member formed in a rectangular tube shape and an insertion hole 6 formed in a tapered prismatic shape. The shaft portion 10 of the member can be formed in a tapered angular axis shape. In this case, the split groove 7 opened at one end of the tubular portion may be provided on the four surface portions as shown in the first embodiment, or may be provided only on the two opposing surface portions as shown in FIG. Further, the first engaging portion provided in the insertion hole may be provided only in the facing surface portion of the inner surface portion of the insertion hole. In this case, the second engaging portion on the shaft member side may be provided only on the facing surface portions in accordance with this.

When the tubular portion 4 of the tubular member is formed in a cylindrical shape, the split groove 7 that opens at one end of the tubular portion may be provided only in the opposing portion of the tubular portion, as shown in FIG. Alternatively, as shown in FIG. 9, it may not be provided in a facing state such as being provided at an angular pitch of 120 degrees.

In each of the connecting tools, the insertion hole provided in the tubular member may be provided so as to open at the other end of the tubular portion. In this case, by forming the shaft portion of the shaft member to be relatively long, the shaft portion can be made to protrude from the other end opening of the insertion hole. In this way, even if the eyeglass members to be connected have different wall thicknesses, there is an advantage that they can be connected using the same connecting tool.

This will be described by taking as an example the case where the lens 19 and the temple connecting portion 17a are connected. When the lens 19 is thick, as shown in FIG. 10, the shaft portion 10 does not protrude from the other end opening 45 of the tubular portion 4, but when the lens 19 is thin, as shown in FIG. In some cases, the tip portion 46 of the shaft portion 10 projects from the other end opening 45 of the insertion hole. In this case, the protruding portion is appropriately cut off.

The outer shape of the tubular portion can be formed so as to be tapered. FIG. 12 shows an example of such a case, and is applied, for example, to the case where the temple connecting portion 17a and the lens 19 are connected to each other. An insertion hole 47 is provided which is tapered from the end toward the inner end. The shaft portion 10 is pushed into the insertion hole 6, the portion 25 between the split grooves of the cylindrical portion is expanded, and the outer surface 49 of the cylindrical portion is pressed against the inner peripheral surface 26 of the square hole. Then, the elastic packing material 15 is slightly compressed, and the first engagement portion on the tubular portion side and the second engagement portion on the shaft portion side are finally engaged, and the elastic restoration of the elastic packing is performed. By the action, the engaged state of both engaging portions is stably maintained.

It is preferable that the outer shape of the cylindrical portion is formed in such a taper shape and that the eyeglass member is also provided with a tapered insertion hole so that the cylindrical portion can be easily inserted into the insertion hole.

In the connector according to the present invention, the shaft member may be made of metal.

[0032]

[Effect of device]

 Since the present invention is configured as described above, it has the following excellent effects. After inserting the tubular part of the tubular member from one end into the communicating hole of the eyeglass member to be connected, push the shaft part into the insertion hole of the tubular part from the other end side of the communicating hole to insert the shaft part. By engaging the second engaging portion of the above and the first engaging portion of the tubular portion and making the elastic packing material into the slightly compressed state for the final engagement, the eyeglass members are not loosened and stable. Can be linked to states.

In the case of the connecting device according to the present invention, the eyeglass members can be easily connected to each other by a one-touch operation of pushing the shaft portion into the tubular portion, so that the nut and the screw must be rotated many times as in the conventional case. There is no inconvenience that must be made, and we will strive to streamline the connection work.

By opening the insertion hole also on the other end side of the tubular portion, the shaft portion of the shaft member is allowed to protrude from the other end opening. Therefore, even if the thickness of the eyeglass members to be connected is slightly different, the same connecting tool can be used and the versatility can be improved.

Since the tubular member is made of resin, an appropriate cushioning effect is exhibited when the eyeglass member made of a material that is easily broken, such as when connecting the resin lens to the connecting portion of the temple, is connected. Therefore, it becomes possible to connect the eyeglass members to each other by omitting the bush d as shown in FIG. 13, which is economical.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a procedure for connecting a lens and an endowment using a connecting tool.

FIG. 3 is a cross-sectional view illustrating the connected state.

FIG. 4 is a perspective view illustrating another aspect of the connector.

FIG. 5 is a cross-sectional view showing a case where a hinge is used to form a hinged part of a hinge.

FIG. 6 is a cross-sectional view showing a state in which a pad is connected to a box using a connecting tool.

FIG. 7 is a cross-sectional view illustrating a connector in which a tubular portion of a tubular member is formed in a tapered prismatic shape and a shaft portion of a shaft member is formed in a tapered angular axis shape in accordance with the tubular portion.

FIG. 8 is a cross-sectional view illustrating an arrangement state of split grooves provided in a tubular member.

FIG. 9 is a cross-sectional view illustrating another arrangement state of the split groove provided in the tubular portion of the tubular member.

FIG. 10 is a cross-sectional view illustrating a state in which eyeglass members are connected to each other by using a connecting tool having an insertion hole penetrating the cylindrical portion of the cylindrical member.

FIG. 11 is a cross-sectional view illustrating a state in which eyeglass members are connected to each other by using a connecting tool having an insertion hole that penetrates the cylindrical portion of the cylindrical member.

FIG. 12 is a cross-sectional view showing a state in which the outer shape of the tubular portion of the tubular member is tapered, and this is inserted into a tapered insertion hole provided in the spectacle member to connect the spectacle members to each other.

FIG. 13 is a cross-sectional view illustrating a conventional lens connecting structure in which a lens and an endorroid are connected using a screw and a nut.

FIG. 14 is a cross-sectional view illustrating a conventional hinge structure in which a hinge is pivotally attached using screws.

FIG. 15 is a cross-sectional view illustrating a conventional pad connecting structure in which pads are connected to a box using screws.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection tool 2 Cylindrical member 3 Shaft member 4 Cylindrical part 5 Holding plate 6 Insertion hole 7 Split groove 8 Engaging surface 9 First engaging part 10 Shaft part 11 Holding plate 12 Engaging surface 13 Second engaging part 15 Elastic packing material

Claims (9)

[Scope of utility model registration request] 1. A resin-made tubular member having a holding plate projecting from the other end of the tubular portion which is provided with an insertion hole that is opened at one end of the tubular portion and is tapered, and a tapered member that is pushed into the insertion hole. A shaft member formed by projecting a holding plate at the base end of the shaft part to be turned into a cylinder, and the cylinder part of the cylinder member is opened at one end thereof and extends in the axial direction to reach the other end side of the cylinder part. A plurality of grooves are provided at substantially equal angles in the circumferential direction, and a first engaging portion is formed on the inner surface of the insertion hole in multiple stages in the axial direction of the insertion hole. A second engaging portion that can be engaged with the first engaging portion is formed on an outer surface portion of the portion in multiple stages in the axial direction thereof,
Further, an elastic packing material made of a soft resin is attached to a base end side portion of the shaft portion so that the shaft portion is inserted into an insertion hole penetrating therethrough and is abutted on the holding plate. A connector for eyeglasses. 2. The connector for eyeglasses according to claim 1, wherein the first engaging portion is formed in a saw blade shape having an engaging surface toward the tip of the insertion hole. 3. The connector for eyeglasses according to claim 1, wherein the first engaging portion is formed in a regular triangular shape in cross section. 4. The spectacles according to claim 1, wherein the insertion hole of the cylindrical portion is formed as a tapered rectangular hole, and the shaft portion is formed in a tapered angular shaft shape correspondingly. Connector. 5. The spectacles according to claim 1, wherein the insertion hole of the tubular portion is formed into a circular hole which is tapered, and the shaft portion is formed into a round shaft shape which is tapered accordingly. Connector. 6. The connector for eyeglasses according to claim 1, wherein the cross-sectional outer shape of the tubular portion is rectangular, and the length of each side is the same over the entire length of the tubular portion. 7. The connector for eyeglasses according to claim 1, wherein the cross-sectional outer shape of the tubular portion is circular, and the diameter is the same over the entire length of the tubular portion. 8. The connector for eyeglasses according to claim 1, wherein the outer shape of the tubular portion is tapered. 9. The insertion hole is also opened at the other end of the tubular portion,
The connector for spectacles according to claim 1, wherein the tip end side of the shaft portion inserted into the insertion hole can be projected from the other end opening of the insertion hole.