JPH1020262A - Front sunglass mounting implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the failure of mounting parts of right and left sunglass lenses to mounting implements and to assure necessary functions with a fewer parts by holding the intermediate parts of the right and left sunglasses, thereby making the front sunglasses attachable and detachable to and from spectacles and improving the operability thereof. SOLUTION: A holding piece 3 is formed at the bottom end of a frame 2. The rear end position of the frame 2 is freely turnably provided with a retaining rod 5 having an operating part 4. The retaining rod 5 is energized by a torsion spring 6 in the direction where the rod comes into contact with the holding piece 3. Further, an arm 7 for supporting the sunglass lens is freely turnably mounted at the front end position of the frame 2 and one end of the torsion spring 6 is pressed to a square columnar part formed at the shaft part of the arm 7, by which the turning position of the arm 7 is made settable at the use position of the sunglass lens 9 and at the non-use position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment for detachably attaching front sunglasses to eyeglasses.

[0002]

2. Description of the Related Art The inventor of the present invention has proposed such a mounting tool.
Japanese Unexamined Utility Model Publication No. 62-35058 proposes a "mounting tool for front sunglasses". When the sunglasses lens is flipped up and set to the non-use position, the attachment is ready to be removed from the glasses.

[0003]

As described above, according to the above structure, the front sunglasses are attached to and detached from the spectacles while holding the flipped-up sunglasses lens, so that an excessive force is applied to the mounting portion between the sunglasses lens and the bracket (arm). Works, the riveted part of the sunglasses lens is easily damaged, and the mounting and dismounting operation of the front sunglasses is not performed at the middle part of the left and right sunglasses lenses, that is, the bridge part of the glasses, so the positioning feeling at the time of attaching and detaching is not accurate. Disadvantages include poor operability of attaching and detaching.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make the front sunglasses detachable from the spectacles while holding the middle part of the left and right sunglass lenses, that is, the part of the mounting tool, to improve the operability and to attach the front sunglasses. The purpose is to prevent damage to the mounting portion between the tool and the left and right sunglass lenses, and to secure the necessary functions with fewer parts.

[0005]

To achieve the above object, according to the present invention, a holding piece is formed at a lower end of a frame, and a holding rod having an operating portion is rotatably provided at a rear end position of the frame.
This holding rod is urged by a torsion spring in a direction in which it comes into contact with the holding piece, and further, an arm for supporting a sunglass lens is rotatably attached to a front end position of the frame,
One end of a torsion spring is brought into contact with a prism formed on the shaft of the arm to constitute a front sunglass attachment.

[0006] The user pushes the operating section and displaces the holding rod in the opening direction, thereby setting the front sunglass attachment to be detachable from the glasses. Also, when the user rotates the sunglass lens in the direction of flipping up, the torsion spring hits the prism portion of the arm and holds it stably in the unused position. It can be set to a use or non-use state while being attached.
In addition, since the respective positions are stabilized by the contact between the prism portion and the torsion spring, the sunglass lens in the mounted state does not become unstable with respect to the movement of the head.

[0007]

1 to 4 show a front sunglass attachment 1 according to the present invention. The front sunglass attachment 1 is provided with a holding piece 3 at the lower end of the frame 2.
And at the rear end position of the frame 2, a holding rod 5 having an operation part 4 is rotatably provided, and the holding rod 5 is urged by a torsion spring 6 in a direction in which the holding rod 5 comes into contact with the holding piece 3. Further, an arm 7 for supporting a sunglass lens 9 is rotatably attached to a front end position of the frame 2, and one end of a torsion spring 6 is brought into contact with a prism 8 formed on a shaft of the arm 7. ing.

The frame 2 is made of a metal plate, and is formed by bending the front and rear ends to form bearing portions 10 and 11 in order to rotatably support the holding rod 5 and the arm 7. The left and right holding pieces 3 are formed by bending a part of the contact piece 12 extending left and right downward.

Then, a cover 13 having substantially the same size is attached to the upper surface of the frame 2 by caulking. The operation unit 4 fixed to the holding rod 5 projects upward from the opening 14 of the cover 13 so that the user can perform a pressing operation. By the way, cover 1
Spacers 15 provided on the left and right of 3 interpose between the holding rod 5 and the arm 7 to prevent them from moving in a direction approaching each other.

The torsion spring 6 is wound around the holding rod 5 in the form of a coil at left and right portions of the operating portion 4, and contacts the lower portion of the operating portion 4 at a portion connecting the left and right coil portions. In addition, independent left and right ends of the arm 7 are in elastic contact with the prism 8 of the arm 7 from above.
Here, the prism portion 8 is, for example, a triangular prism, and is brought into contact with the torsion spring 6 on the prism surface, thereby stabilizing the sunglass lens 9 at the used position and the flipped up unused position. The left and right sunglass lenses 9
Is attached to the tip of the arm 7 by a small rivet 16 or the like.

When the user wears the sunglasses lens 9, the user normally pushes down the operating part 4 with the thumb while pressing the index finger of the dominant hand under the frame 2 against the elasticity of the spring 6, thereby pressing the holding rod 5. The front sunglass mounting device 1 is mounted on the spectacles 17 such that the eyeglasses 17 enter between the holding pieces 3 and the holding rod 5 so as to be separated from the holding pieces 3. In this state, the torsion spring 6 urges the holding rod 5 in the direction of pressing against the holding piece 3, thereby holding the eyeglasses 17 and keeping them from falling off. Note that rubber or soft caps are fitted into the distal end portions of the holding piece 3 and the holding rod 5 to prevent damage to the spectacle lens and prevent slipping.

At this time, since the front sunglass mounting device 1 is held by the frame 2, no force is applied to the sunglass lens 9, so that the mounting portion is not damaged. In addition, since the user holds the portion of the frame 2, that is, the portion corresponding to the bridge of the spectacles 17, the user can easily feel the positioning of the front sunglass attachment 1 with respect to the spectacles 17 and can easily wear it.

In the mounted state, the left and right sunglass lenses 9
Covers the use position, that is, the front surface of the spectacle lens, so that the user sees the field of view through the sunglass lens 9. Here, the user needs the sunglass lens 9
When the user wants to see the field of view without using, hold the sunglasses lens 9 on either the left or right, flip it up, and rotate it to the non-use position. At this time, the torsion spring 9
The prism portion 8 moves from the prism surface corresponding to the use position to the prism surface corresponding to the non-use position, contacts the prism surface after the movement, and stabilizes the sunglass lens 9 at the non-use position (flip-up position). Hold.

As described above, the torsion spring 6 urges the holding rod 5 in the direction of the holding piece 3 to hold the front sunglass attachment 1 with respect to the spectacles 17 and also uses the sunglass lens 9. It also has the function of maintaining a stable state at the position or unused position.

In the above-described specific example, each part is also used in order to reduce the number of parts. However, each part, especially the holding piece 3 integrated with the frame 2 and the like, can be formed of another member. .

[0016]

According to the present invention, since the holding rod 5 can be released from the holding piece 3 by pressing the operating portion 4 at the frame 2, the sunglass lens 9 is large when the front sunglass attachment 1 is attached or detached. Since no force is applied, the mounting portion of the arm 7 and the sunglass lens 9 is not damaged, and the mounting and dismounting operation of the front sunglass mounting device 1 can be performed at an intermediate portion between the left and right sunglass lenses 9.
And the torsion spring 6 urges the holding rod 5 in the direction of the holding piece 3 and at the same time acts on the prism 8 of the arm 7 to move the sunglass lens 9 between the use position and the use position. Since the positioning is made to the use position, the above two functions can be achieved by one spring, and the effects such as the reduced number of parts and the simplification of the structure can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a state in which a front sunglass attachment 1 of the present invention is mounted on spectacles 17;

FIG. 2 is an enlarged side view of the front sunglass attachment 1 of the present invention.

FIG. 3 is an enlarged plan view of the front sunglass attachment 1 of the present invention with the cover 13 removed.

FIG. 4 is an enlarged sectional view of a main part of the front sunglass attachment 1 of the present invention with the cover 13 removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front sunglass attachment 2 Frame 3 Holding piece 4 Operation part 5 Holding rod 6 Torsion spring 7 Arm 8 Square part 9 Sunglass lens 10 Bearing part 11 Bearing part 12 Contact piece 13 Cover 14 Opening 15 Spacer 16 Rivet 17 Glasses

Claims (1)

[Claims] A holding piece (3) is formed at a lower end of a frame (2), and a holding rod (5) having an operation part (4) is rotatably provided at a rear end position of the frame (2). ,
The holding rod (5) is urged by a torsion spring (6) in a direction in which the holding rod (3) comes into contact with the holding piece (3), and the arm (7) for supporting a sunglass lens is rotatable at the front end position of the frame (2). And a torsion spring (6) attached to a prism (8) formed on the shaft of the arm (7).
The sunglass lens (9) can be set between a use position and a nonuse position of the sunglass lens (9) by contacting one end of the front sunglass lens (7).