JP2001091902A - Spring-up type spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spring-up spectacle frame which is simple in structure, is mounted with a face front frame in a state good and adequate for a wearing person and can maintain this state. SOLUTION: The face front frame 1 is supported at a back front frame 4 in such a manner that the face front frame can be sprung up by a supporting mechanism part 5 consisting of a bearing cylindrical body 11 which is fixed at one end 11a to a back bridge part 7 and is formed with a rugged part 10 on its other end face 11b and a turning cylindrical body 13 which is formed at one end 13a with a rugged end face 12 sliding in the rugged part 10 of the bearing cylindrical body 11 and is inserted with the end 8a of the frame part 8 from the other end 13b and a connecting part 14 which is formed integrally at a turning cylindrical body 13 and is fixed to the face front frame 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front front frame on which an eyeglass lens is mounted, which can be flipped up, that is, rotatably mounted on a back front frame rotatably supported by a temple. The present invention relates to a flip-up type spectacle frame having the above configuration.

[0002]

2. Description of the Related Art Conventionally, various configurations of a flip-up type spectacle frame having the above-described configuration have been proposed and implemented. For example, Japanese Utility Model Registration No. 3023972, Japanese Patent Application Laid-Open No. 9-281450, JP-A-11-20
No. 2269 can be exemplified.

[0003] These flip-up eyeglass frames are installed outside a rear front frame located on the face side of the spectacle wearer, and cover a front front frame of the rear front frame (for example, a lens for sunglasses, Or with a prescription eyeglass lens)
It is configured to be rotatable with various hinge structures with respect to the back front frame, and when the spectacle wearer wants to use the front front frame while moving it from the front of the back front frame, By rotating the front frame, the front frame is moved out of the field of view of the wearer.

[0004]

However, in the conventional flip-up eyeglass frame, the structure for rotatably mounting the front front frame with respect to the rear front frame is complicated. This is because the spectacles are worn by the wearer in an appropriate state, and it is necessary to devise measures to surely maintain the state. For this reason, in the conventional flip-up spectacle frame, for example, a joint structure,
The frame structure has a complicated structure and a relatively high cost, such as a structure using gears or a hinge structure using magnets.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems, to provide a simple structure, and to allow the front front frame to be mounted to a wearer in a good and proper state, and to maintain the state. An object of the present invention is to provide a lift-up spectacle frame.

[0006]

In order to achieve the above object, the present invention provides a rear front frame supported by a temple, a lens for spectacles, and a rotatable part of the rear front frame. In a flip-up type eyeglass frame provided with a front front frame provided, a bearing cylinder having an uneven portion formed on an end surface is fixed to a part of the rear front frame, and the uneven portion of the bearing cylinder slides. A rotatable cylindrical body having an uneven end surface formed thereon is rotatably supported on a part of the back front frame, and the rotatable cylindrical body is connected to the front front frame. The front frame is rotatably supported on the front frame by a hinge structure consisting of a bearing cylinder and a rotating cylinder, and irregularities are formed on the sliding surface between the bearing cylinder and the rotating cylinder. Have been , Upon rotation of the table front frame a so-called ratchet structure will be securely held secured to the several stages.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described.

FIG. 1 is a front view of an eyeglass frame according to an embodiment of the present invention, FIG. 2 is a plan view showing a main part of the eyeglass frame shown in FIG. 1, and FIG. 3 is a back front frame of the eyeglass frame shown in FIG. 1 is an exploded front view of the right side of FIG. 1, a front front frame 1 on which a pair of left and right eyeglass lenses 2 are mounted, 3 a front bridge portion of the front front frame 1, 4 a rear front frame, 5 a front front frame 1 is a supporting mechanism for rotatably supporting the rear frame 1 with respect to the rear front frame 4.

The back front frame 4 constitutes a main frame of a spectacle frame including a known temple, wisdom, hinges, and the like (not shown). As shown in FIG. A back bridge portion 7 to be installed and a pair of left and right frame portions 8 connected to a temple or a wisdom (only the right side is shown in FIG. 3).
Are separated from each other, and each of the left and right frame portions 8 is connected to both ends of the back bridge portion 7 by the support mechanism portion 5.

As shown in a partial cross-sectional view of FIG. 4, the supporting mechanism 5 has one end 11a fixed to the back bridge 7 by brazing or the like, and the unevenness 10 formed on the other end 11b. Bearing cylinder 11 and bearing cylinder 11 at one end 13a
And a rotating cylinder 13 into which the end 8a of the frame portion 8 is inserted through an opening in the other end 13b, and is formed integrally with the rotating cylinder 13. And a connecting portion 14 fixed to the front frame 1.

Further, a coil spring as an elastic urging member for urging the rotating cylinder 13 in a direction in which the uneven end face 12 elastically contacts the uneven portion 10 of the bearing cylinder 11 is provided inside the rotating cylinder 13. 15 are provided. Coil spring 1
5 has one end elastically contacting the inner wall 13c of the rotating cylinder 13 and the other end elastically contacting the sealing cylinder 16 fixed to the other end 13b of the rotating cylinder 13.

An end portion 8a of the frame portion 8 inserted into the inside from the other end portion 13b of the rotating tubular body 13 is fixed by a set screw 17 as a locking member which is screwed into the bearing tubular body 11 from the outside. , The rotating cylinder 1 about the frame portion 8 as the center of rotation
3 rotates. The mechanism for connecting and fixing the frame portion 8 and the bearing cylinder 11 is not limited to the use of the set screw 17, and the set screw 17 may be screwed through the frame portion 8. It is also conceivable to fix the frame portion 8 with a plurality of set screws 17.

However, by adopting a structure that allows the screws to be removed and re-attached by using the set screws 17, disassembly can be performed easily, so that the bearing cylinder 11, the rotating cylinder 13, Or coil spring 15
Cleaning or coil spring 15
Can be easily replaced for adjusting the biasing force in the above.

FIG. 5 is a cross-sectional view showing a modified example of the connection structure of the support mechanism 5 between the frame portion 8 and the back bridge portion 7. In the connection structure shown in FIG. Although fixed to the back bridge 7 by brazing or the like, in the example shown in FIG.
a and the end 8a of the frame portion 8 are joined inside the bearing cylinder 11, and the end 7a of the back bridge portion 7 and the frame are respectively connected by a pair of set screws 17 screwed into the side of the bearing cylinder 11. The end 8 a of the portion 8 is fixed to the bearing cylinder 11.

In the example shown in FIG. 5, the back bridge portion 7 can be disassembled with respect to the bearing cylinder 11 by removing the set screw 17, so that in addition to the effect of the configuration shown in FIG. There is an effect that repair and replacement of the bridge portion 7 or cleaning of this portion can be performed more easily.

An example of use in this embodiment will be described. In the case where a prescription spectacle lens 2 is mounted on the front front frame 1, if the spectacle wearer who uses the spectacle frame wants to see the front front frame 1 through the prescription spectacle lens 2, the front front frame 1 is used. Back front frame 4
(The state below the two-dot chain line in FIG. 6).
In this state, the concave and convex end faces 12 of the rotating cylindrical body 13 and the concave and convex portions 10 of the bearing cylindrical body 11 are engaged with each other under the urging force, so that the rear front frame 4 is not inadvertently rotated. With the addition of a strong elastic force, there is no flapping, and even if this part is worn over a long period of time, it can be covered with a certain range of elastic urging force and has excellent durability. It is.

When the user wants to see the image without passing through the spectacle lens 2, the spectacle wearer rotates the front front frame 1 upward from the front surface of the rear front frame 4 (see FIG. 6). In other words, the eyeglass lens 2 can be moved out of the field of view in a state of a solid line or a position above a two-dot chain line). During this movement, the rotating cylinder 1 is moved relative to the bearing cylinder 11.
3 is rotated against the urging force of the coil spring 15, and receives the urging force of the coil spring 15 at a predetermined angle after the rotation to receive the uneven end surface 1 of the rotary cylinder 13.
As described above, the rear front frame 4 does not inadvertently rotate in this state because the projections 2 and the concave and convex portions 10 of the bearing cylinder 11 are engaged with each other.

In the above embodiment, the front front frame 1
Are connected left and right by the front bridge portion 3, but the lens mounting portion for mounting the pair of spectacle lenses 2 can be independently rotated with respect to the rear front frame 4 without using the front bridge portion 3. It is also possible to have a support structure,
With such a configuration, it is convenient when performing work using only one of the spectacle lenses 2 such as during makeup or hunting.

Further, when the back front frame 4 is constituted by an annular frame, the front front frame 1 is pivotally moved to the lower or left or right frame of the back front frame 4 with the bearing cylinder 11. It is also conceivable to adopt a configuration that is provided rotatably by the cylindrical body 13. Various developments can be achieved as the rotation direction (flipping direction) of the front front frame 1 depending on the design or product specifications.

In this embodiment, various kinds of lenses can be used as the lenses mounted on the front front frame 1 and the rear front frame 4. A colored lens is mounted on the front front frame 1, and It is possible to use a combination of lenses that suits the user's intention, such as attaching a prescription lens to the front frame 4 or mounting a prescription lens 2 only to the front frame 1 It is.

The members described in the above embodiment are:
The present invention is not limited to the illustrated member shapes, and may be appropriately modified depending on the design or product specifications.

[0022]

As described above, according to the present invention, the front front frame is rotatably supported by the hinge structure including the bearing cylinder and the rotating cylinder with respect to the rear front frame. The so-called ratchet structure is formed on the sliding surface between the rotating front body and the rotating cylindrical body, so that the front front frame can be securely held and fixed in several steps in the rotating direction when the front front frame is rotated. Therefore, it is possible to provide a flip-up spectacle frame that has a simple structure, can attach the front front frame to the wearer in a good and proper state, and can maintain the state. It was realized.

[Brief description of the drawings]

FIG. 1 is a front view of an eyeglass frame as one embodiment of the present invention.

FIG. 2 is a plan view showing a main part of an eyeglass frame according to the embodiment.

FIG. 3 is an exploded front view showing a part of a rear front frame of the spectacle frame according to the embodiment.

FIG. 4 is a partial cross-sectional view of a support mechanism according to the embodiment.

FIG. 5 is a cross-sectional view showing a modification of the connection structure of the support mechanism between the frame and the back bridge in the embodiment.

FIG. 6 is an explanatory diagram of a side state during use in the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front front frame 2 Eyeglass lens 3 Front bridge part 4 Back front frame 5 Support mechanism part 7 Back bridge part 8, 8 Frame part 10 Irregular part 11 Bearing cylinder 12 Irregular end face 13 Rotating cylinder 14 Connecting part 15 Coil spring 16 Sealing cylinder 17 Set screw

Claims (6)

[Claims] 1. A flip-up spectacle frame comprising: a back front frame supported by a temple; and a front front frame on which a spectacle lens is mounted and which is rotatably provided on a part of the back front frame. , A bearing cylinder having an uneven surface formed on an end surface thereof is fixed to a part of the back front frame, and the rotating cylindrical body having an uneven end surface sliding on the uneven surface of the bearing cylindrical body is fixed to the back front frame. A flip-up type eyeglass frame, which is rotatably supported by a part of the eyeglass frame, and wherein the rotary cylinder is connected to the front front frame. 2. A part of the back front frame is separated, the bearing cylinder is fixed to one of the separation parts, and the other of the separation parts is passed through the rotating cylinder, and is engaged at the bearing cylinder part. The flip-up type spectacle frame according to claim 1, wherein the frame is detachably fixed by a stop member. 3. The flip-up glasses according to claim 1, further comprising an elastic urging member so that the concave-convex portion of the bearing cylinder and the concave-convex end surface of the rotating cylinder elastically contact each other. flame. 4. The front front frame is provided so as to be rotatable with respect to one of an upper side and a lower side of the back front frame by the bearing cylindrical body and the rotating cylindrical body. The flip-up eyeglass frame according to 1, 2, or 3. 5. A pair of lens mounting portions for mounting a spectacle lens in the front front frame,
5. The flip-up device according to claim 1, wherein each of the lens mounting portions is rotatably provided on a part of the back front frame by the bearing cylinder and the rotation cylinder. Glasses frame. 6. The flip-up glasses according to claim 1, wherein a colored lens is mounted on the front front frame, and a prescription lens is mounted on the rear front frame. flame.