JPH08278471A - Spectacles - Google Patents

Abstract

PURPOSE: To simplify a structure to connect the metallic connecting parts and lenses of spectacles of a rimless type. CONSTITUTION: Respective connecting parts 20 of a connecting member 11 and endpiece 12 connected to the lens 10 are provided with bolt holes 15 through these parts and are projectingly provided with an engaging projection 16 in a position proximate to these bolt holes 15. On the other hand, the lens side is provided with a connecting hole 10a and an engaging recessed part 10b to be inserted with this engaging projection 16 in a position proximate to this connecting hole 10a. In addition, a cylindrical part 18a to be internally fitted with the connecting hole 11a of the lens 10 is provided at its one end with a resin washer 18 having a flange part 18b detained to the peripheral edge of the connecting hole 10a. The cylindrical part 18a of the washer 18 is inserted into the connecting hole 10a of the lens 10 and after the flange part 18b is pressed to one face of the lens 10, the connecting part 20 is pressed to the flange part 18b and the engaging projection 16 is inserted into the engaging recessed part 10b of the lens 10. The bolt 21 is inserted from the bolt hole 15 of the connecting part 20 into the washer cylindrical part 18a and a nut 22 is tightened and fixed to the bolt projecting from the other surface of the lens 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rimless type eyeglass, and more particularly to a structure in which right and left lenses are connected by a connecting member without holding the lens by a rim, and a wisdom is connected to the outside of each lens. The rimless glasses are intended to improve the connection member and the connection structure between the lens and the lens.

[0002]

2. Description of the Related Art Recently, rimless glasses in which the insides of the left and right lenses are directly connected by a connecting member and the outsides of each lens are directly connected with the wisdom without holding the lens by a rim, It is provided in large numbers such as Utility Model Registration No. 3004863. In this type of glasses, a resin washer is interposed between the lens and the metal connecting member and the wisdom to prevent the metal connecting member and the wisdom from directly contacting the lens. On the other hand, when the lens is fastened and fixed, the lens is prevented from being damaged, and a detent action is provided at the time of tightening.

That is, the utility model registration No. 3004836
The connection structure of the eyeglasses of No. 8 has a structure shown in FIG. 8 (A) (B) or FIG. 9 (A) (B). In the embodiment shown in FIGS. 8A and 8B corresponding to claim 1 of the above utility model registration, a circular connecting hole 1a and an engaging space 1b are provided in the connecting portion of the lens 1, and the bush 2 with the collar is provided. Connect the cylindrical portion 2a to the connecting hole 1a.
And the flanged bush 2b of the flanged bush 2 covers the opening end of the engagement space 9. Then, stack the temple (corresponding to the wisdom) connecting part 3 on the collared bush 2,
The tip end 3a of the engaging projection provided on the connecting portion 3 is aligned with the engaging space 1b, and the fixing screw 4 is inserted into the screw insertion hole 3b formed in the connecting portion 3 and the cylindrical portion 2a of the flanged bush 2. The nut 5 is screwed into the fixing screw 4 protruding through the other surface of the lens through the insertion and tightened, whereby the engaging projection tip 3a of the connecting portion 3 is inserted.
The engaging portion 2c provided on the flanged bush 2 is pushed into the engaging space 1b of the lens 1.

Further, in another embodiment shown in FIGS. 9 (A) and 9 (B) corresponding to claim 7 of the utility model registration, an engaging portion 2c having an open bottom is provided on the flange piece 2b of the flanged bush 2. Provided,
With the fixing screw 4 tightened with the nut 5, the engaging portion 2c is in the engaging space 1b of the lens 1.

[0005]

Problems to be Solved by the Invention FIG. 8 (A) (B) above
Connecting structure corresponding to claim 1 shown in FIG.
In the connection structure corresponding to (B), the resin-made bush 2 has a cylindrical portion 2a for screw insertion and an engaging portion 2 in advance.
c is provided, and the cylindrical portion 2a of the flanged bush 2 is inserted into the connecting hole 1a of the lens 1 and the engaging portion 2c is inserted into the engaging space 1b of the lens 1 when connected. Therefore, it is necessary to form the cylindrical portion 2a and the engaging portion 2c in the flanged bush 2 by matching the dimension between the connecting hole 1a provided in the lens 1 and the engaging space 1b and the positional relationship between the two. is there. Therefore, it is necessary to form the flanged bush every time the dimension and the positional relationship between the lens-side connecting hole 1a and the engagement space 1b are changed, and it is inevitable that the bush is a dedicated product corresponding to the lens. There is a drawback that the points increase and the cost increases.

Further, when the collar bush 2 is attached to the lens 1, the engagement portion 2c is engaged with the engagement space 1b while the cylindrical portion 2a of the collar bush 2 is inserted into the connecting hole 1a of the lens.
Must be accurately positioned at the position corresponding to. Therefore, while confirming that the position of the engaging portion 2c of the flanged bush 2 (that is, the direction of the engaging portion 2c with respect to the cylindrical portion 2a) coincides with the engaging space 1b, the cylindrical portion 2a is connected to the connecting hole 1a. Since it has to be inserted and the collar bush 2 is very small, there is a drawback that it takes a lot of work.
Further, it is necessary to start over if the position of the engaging portion 2c does not coincide with the engaging space 1b, but since the cylindrical portion 2a is closely inserted into the connecting hole 1a, it is difficult to take out once inserted.
Redo work becomes extremely difficult.

The present invention has been made in view of the above problems, and is a connecting structure in which a metal connecting portion and a lens are fastened and fixed by bolts and nuts via a collared bush, that is, a resin washer. In order to improve the workability, it is possible to provide a pair of eyeglasses having a connecting structure in which a washer can be widely used even if the size and the positional relationship between the connecting hole of the lens and the locking recess for rotation prevention are different. I am trying.

[0008]

To achieve the above object, according to the present invention, in claim 1, a connecting member for connecting the inner side of the left and right lenses and an outer side of the left and right lenses are connected to Satoshi, respectively. In a rimless type eyeglasses for connecting a toe to a temple, a bolt hole is provided through each connecting member of the lens and the tongue connecting portion, and a two-step engagement is provided at a position close to the bolt hole. While projecting the protrusion,
Provided on the lens side is a coupling hole and a locking recess into which the tip projection of the engaging projection is inserted, and a flange portion which is locked to the peripheral edge of the coupling hole is provided at one end of the cylindrical portion fitted in the coupling hole of the lens. With a resin washer that has the cylindrical portion of the washer inserted into the lens connecting hole and the flange portion is in contact with the front surface of the lens, the connecting portion is in contact with and is engaged with the flange portion of the washer. The projection of the tip of the protrusion is inserted into the locking recess of the lens, the bolt is passed through the bolt hole of the connecting part into the cylindrical part of the washer, and the nut protruding from the rear surface of the lens is tightened and fixed. It is intended to provide eyeglasses to wear.

It is preferable that the protruding amount of the first step of the two-step engagement projection projectingly provided on the connecting portion is substantially equal to the thickness of the flange portion of the washer.

According to a second aspect of the present invention, the connection member for connecting the inside of the left and right lenses and the outside of the left and right lenses are connected to the wisdom, respectively, and rimless type glasses for connecting the wisdom to the vine. In each of the connecting member and the connecting portion for connecting to the lens, a bolt hole is provided so as to penetrate and an engaging projection is provided at a position close to the bolt hole, while the connecting hole and the engaging member are provided on the lens side. A resin-made first washer having a locking recess into which the fitting projection is inserted, and a flange part that locks to the peripheral edge of the connecting hole at one end of the cylindrical part that fits in the connecting hole of the lens, and the lens locking A resin-made second washer having a flange portion that engages with the peripheral edge of the engaging recess is provided at one end of the cylindrical portion that fits in the recess, and the cylindrical portion of the first washer is inserted into the connecting hole of the lens to secure the flange portion. When it comes into contact with the front surface of the lens, , Inserting the cylindrical portion of the second washer into the locking recess of the lens and bringing the flange into contact with the front surface of the lens, bring the connecting portion into contact with and engage the flange portions of the first and second washers. Insert the projection into the cylindrical portion of the second washer and overlap it, pass the bolt through the bolt hole of the connecting portion into the cylindrical portion of the first washer, and tighten the nut on the bolt protruding from the rear surface of the lens to fix it. It is intended to provide characteristic glasses.

Further, according to the present invention, in claim 3, the connecting member for connecting the inside of the left and right lenses and the outside of the left and right lenses are respectively connected to the wisdom, and the rimless glasses for connecting these wisdom to the vine. In each of the connecting member and the connecting portion for connecting to the lens, a bolt hole is provided so as to penetrate, and an engaging projection is provided at a position close to the bolt hole, while a connecting hole is provided in the connecting portion on the lens side. And a locking concave portion into which the engaging projection is inserted, and at one end of a cylindrical portion that fits in the coupling hole of the lens, locks on the peripheral edge of the coupling hole and extends toward the locking concave side. A resin washer having an engaging hole is provided at a position facing the stopper recess, and the cylindrical portion of the washer is inserted into the connecting hole of the lens to bring the flange portion into contact with the front surface of the lens and to engage the engaging hole. It is placed so as to face the stop recess, and the washer With the connecting part overlaid on the lunge part and the engaging projection of the connecting part inserted into the locking recess of the lens through the engaging hole of the washer, insert the bolt through the bolt hole into the cylindrical part of the washer, and from the rear surface of the lens. The present invention provides eyeglasses characterized in that a nut is tightened and fixed to a protruding bolt.

In the eyeglasses of claims 1, 2, and 3, the bolt hole formed in the connecting portion is a recess for expanding the diameter of the tip side to fit the bolt head therein, and the shape of the recess is the bolt head. It is preferable that the portion has a shape that prevents rotation (claim 4). Further, the nut is fastened to the bolt protruding from the other surface side of the lens from the contact surface side with the lens through a resin flat bush and a metal flat washer (claim 5).

[0013]

According to the spectacles of the present invention, while the cylindrical portion of the washer is inserted into the connecting hole of the lens, the connecting member and the connecting portion of the tongue are brought into contact with the flange portion of the washer, and the engaging projection is provided on the lens. Insert the bolt into the locking recess of the lens, and then insert the bolt through the bolt hole of the connecting part to project to the other surface of the lens through the cylindrical part of the washer inserted in the connecting hole of the lens. Then, the connecting portion is clamped and fixed to the lens via the washer. At this time, since the engaging projection of the connecting portion is inserted into the locking recess of the lens, rotation is prevented. Further, since the flange portion of the washer made of resin is interposed between the lens and the lens at the portion facing the head portion of the bolt to which the tightening force is applied, the lens is not damaged. Furthermore, the engaging protrusion of the connecting portion is 2
It has a stepped shape, and the first step acts similar to the flange part of the washer, maintaining a gap between the connecting part and the lens, and when tightening with the bolt and nut, the connecting part tilts and Prevent hitting.

As described above, the washer has a shape in which the flange portion is provided only at one end of the cylindrical portion and is only inserted into the connecting hole of the lens. Therefore, it is not necessary to assemble the washer to the lens while checking the direction of the washer. Moreover, the same type of frame can be used in common.

In the eyeglasses according to the second aspect, the cylindrical portion of the first washer is inserted into the connecting hole of the lens, and the cylindrical portion of the second washer is inserted into the locking recess of the lens, and in this state, the connecting portion is connected. The connecting portion of the member and the wisdom is brought into contact with the flange portions of the first washer and the second washer, and the engaging protrusion is inserted into the cylindrical portion of the second washer to engage with the locking recess of the lens. , When the bolt is inserted through the bolt hole of the connecting portion, it protrudes to the other surface of the lens through the cylindrical portion of the first washer inserted in the connecting hole of the lens, and when the nut is screwed onto this protruding portion, the connecting portion It is clamped and fixed to the lens via the second washer. This time,
Since the engaging protrusion of the connecting portion is inserted into the cylindrical portion of the second washer that is engaged with the locking recess of the lens, rotation is prevented. Further, since the flange portion of the first washer is interposed between the lens and the lens at the portion facing the bolt head to which the tightening force is applied, the lens is not damaged.

As described above, since the first washer and the second washer are provided and inserted into the connecting hole and the locking recess of the lens independently, the dimension between the connecting hole of the lens and the locking recess is increased. Even if the positional relationship is different, the first washer and the second washer can be used in common. And, since each of these first washers and second washers has a shape in which a flange portion is provided at one end of a cylindrical portion, it is not necessary to assemble the lens while checking the directions of the first and second washers, respectively. Workability is improved.

In the eyeglasses according to the third aspect, the cylindrical portion of the washer is inserted into the connecting hole of the lens, the engaging hole is disposed so as to face the locking recess of the lens, and the connecting portion is provided on the flange portion of the washer. When they are placed in a stack, the engaging projections of the connecting part are inserted into the locking recesses of the lens through the engaging holes, and then the bolt is inserted from the bolt hole of the connecting part in this state, the cylinder of the washer inserted in the connecting hole of the lens By projecting to the other surface of the lens through the part and screwing a nut onto the projecting part, the connecting part is clamped and fixed to the lens via the washer. This time,
Since the engagement protrusion of the connecting portion is inserted into the locking recess of the lens via the washer, rotation is prevented. Further, since the flange portion of the washer is interposed between the lens and the lens at the portion facing the bolt head to which the tightening force is applied, the lens is not damaged.

As described above, at the time of assembling the washer and the lens, the cylindrical portion of the washer is inserted into the connecting hole of the lens, but the engaging hole is only arranged at a position facing the locking recess, and therefore The workability is improved as compared with the case where the protruding engaging portion is inserted into the engaging recess (engaging space) as in the conventional example. Also, even if the positions of the engaging hole and the locking recess are misaligned,
The alignment can be easily corrected only by rotating the cylindrical portion as a fulcrum. In addition, if the engagement hole is made large, it can be used in common even if the dimensions of the bolt hole on the lens side and the locking concave portion are slightly changed.

When the recess for inserting the bolt head is provided in the bolt hole of the connecting portion, the bolt head does not project when the tightening is completed. Therefore, it is possible to prevent the bolt from rotating due to an external force being applied thereto and gradually tightening the bolt and the nut. Further, the bolt head fitted in the recess is prevented from rotating when screwed into the nut.

When a resin flat bush is brought into contact with the lens contact surface on the nut tightening side as described in claim 5, it is possible to surely prevent the lens from being damaged on the nut side, and
Further, since the metal flat washers are stacked on the nut side, the tightening of the nut is not loosened, and the fixing by the bolt and the nut can be strengthened.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. 1 to 3 show a first embodiment. As shown in FIG. 1, the glasses include left and right lenses 10 (10A, 10A).
B) does not have a rim fitted to the outer periphery thereof, and the inside of the lens 10 (10A and 10B) is directly connected by a connecting member 11 made of metal, and the lens 10 (10A
And the outside of 10B) is made of metal 12 (12A, 12B)
, And these wisdom 12 (12A, 12B) are foldably connected to the vine 13 (13A, 13B).

The connecting member 11 and the lens 10 (10A,
10B) connection point and Satoshi 12 (12A, 12
The connection point between B) and the lens 10 (10A, 10B) is
Both have the connection structure shown in FIG. 2, and both the metal connection member 11 and the wisdom 12 (12A, 12B) are
The connecting portion 20 with the lens has a shape shown in FIG.

That is, the connecting portion 20 is provided at a position located on the front surface side of the lens 10 by bending the tips of the connecting member 11 and the tip 12 into an L shape. The connecting portion 20 is provided with a bolt hole 15 penetrating the tip side thereof, and a two-step-shaped engaging projection 16 is provided at a position close to the bolt hole 15. As shown in FIG. 2, the bolt hole 15 is provided on the front side with a recess 15a having an enlarged diameter into which the head 21a of the bolt 21 is fitted. The recess 15a has a rectangular shape as shown in FIG. 3B, and the bolt head 21a also has a rectangular shape.
The bolt 21 is fitted in the recess 15a to prevent the bolt 21 from rotating. Further, the engaging projection 16 is provided with a tip projecting portion 16b formed of a second-stage small-diameter columnar projection at the tip of the first-stage large-diameter columnar projection 16a.

On the other hand, in the connecting portion on the lens 10 side, a circular connecting hole 10a and a locking concave portion 1 into which a tip protruding portion 16b of the engaging projection 16 is inserted at a position close to the connecting hole 10a.
0b is provided by opening to the front side.

A resin washer 18 is provided between the connecting portion 20 and the lens 10. The washer 18 is a cylindrical portion 1 that is fitted in the connecting hole 10a of the lens 10.
8a has an annular flange portion 18b which is engaged with the peripheral edge of the connecting hole 10a at one end thereof. The outer diameter of the cylindrical portion 18a is set so as to be in close contact with the connecting hole 10a, and the inner diameter is set so as to penetrate the shaft portion 21b of the bolt 21. Further, the thickness of the flange portion 18b of the washer 18 and the thickness of the first stage protrusion 16a of the engaging protrusion 16 of the connecting portion 20 are set to be substantially the same.

A nut 22 screwed with the bolt 21, a flat bush 23 made of resin and a flat washer 24 made of metal interposed between the nut 22 and the lens 10 are used.

To fix the connecting portion 20 to the lens 10 by tightening, the cylindrical portion 18a of the washer 18 is first fixed to the lens 10
Is inserted into the connecting hole 10a from the front side, and the flange portion 18b is brought into contact with the peripheral edge of the connecting hole 10b on the front side. At this time, since the cylindrical washer 18 is simply inserted into the circular connecting hole 10a, it is not necessary to confirm the direction of the washer 18.

Then, the connecting portion 20 is provided on the front side of the lens 10.
Are arranged so that the bolt holes 15 of the connecting portion 20 are aligned with the cylindrical portion 18a of the washer 18 and are overlapped with the flange portion 18b.
Is inserted into the locking recess 10b, and the first-stage projection 16a is positioned on the front side peripheral edge of the locking recess 10b.

In this state, the bolt 21 is inserted from the shaft portion 21b through the bolt hole 15 of the connecting portion 20. Bolt hole 15
Is a washer 18 inserted into the connection hole 10a of the lens 10.
Since the bolt 21 passes through the inside of the cylindrical portion 18a, the tip side of the shaft portion 21b projects toward the rear surface side of the lens, and the bolt head portion 21a has the bolt hole 1a.
5 into the recess 15a.

Next, the bolt 2 protruding toward the rear surface of the lens
After passing the resin flat bush 23 and the metal flat washer 24 through the first shaft portion 21b, the nut 22 is screwed into the bolt shaft portion 21b and tightened to fix the connecting portion 20 and the lens 10.

When the bolt 21 and the nut 22 are screwed together,
Since the tip end protruding portion 16b of the engaging protrusion 16 of the connecting portion 20 is fitted in the locking recess 10b of the lens 10, the connecting portion 20 and the lens 10 are prevented from rotating relative to each other. Further, a flange portion 18b of a washer 18 made of a resin is formed between the connecting portion 20 and the lens 10 at the periphery of the connecting hole 10a of the lens 10 facing the bolt head 21a to which the tightening force of the bolt and the nut is most applied. Since it is interposed therebetween, the lens 10 is not damaged. Also, lens 1
The cylindrical portion 18a of the washer 18 is also interposed between the connecting hole 10a of 0 and the bolt shaft portion 21b.
The inner peripheral surface of the connecting hole 10a is not damaged. On the other hand, although the engaging projection 16 of the metallic connecting portion 20 is directly inserted into the locking recess 10b of the lens 10, it merely functions as a rotation stopper, and the tightening force is not applied as much as the bolt mounting side. Therefore, there is no problem and there is no risk of damage.

Moreover, the first stage protrusion 16 of the engaging protrusion 16
Since a has substantially the same thickness as the flange portion 18b of the washer 18, it fulfills the same function as the flange portion, maintains a required space between the coupling portion 20 and the lens 10, and connects the bolt 21 and the nut 22 to each other. It is possible to prevent the connecting portion 20 from tilting and hitting the lens 10 in part when the screwing is done by tightening.

4 and 5 show a second embodiment of the present invention. The difference from the first embodiment is that the connecting hole 1 of the lens 10
0a and a second washer 38 to be inserted into the locking recess 10b of the lens 10 are provided, and the engaging projection 16 'of the connecting portion 20 is not formed into a two-step shape, but is simply a cylinder. The point is that it is shaped like a protrusion. The same members are designated by the same reference numerals and the description thereof will be omitted.

The first washer 28 and the second washer 38 are both made of resin and have a shape in which annular flange portions 28b, 38b are provided at one end of the cylindrical portions 28a, 38a. The cylindrical portion 28a of the first washer 28 is sized so as to be closely fitted in the connection hole 10a of the lens 10, and the second washer 38 is provided.
The cylindrical portion 38b is sized so as to fit in the locking recess 10b of the lens 10 in a substantially dense manner. Further, the engagement protrusion 16 ′ provided on the connecting portion 20 has a shape that can be inserted into the cylindrical portion 38 b of the second washer 38.

In the assembling work of the second embodiment, first, the cylindrical portion 28 of the first washer 28 is inserted into the connecting hole 10a of the lens 10.
By inserting a, the flange portion 28b is brought into contact with the peripheral edge of the connecting hole on the front surface of the lens 10. Also, the locking recess 1 of the lens 10
The cylindrical portion 38a of the second washer 38 is inserted into 0b, and the flange portion 38b is brought into contact with the peripheral edge of the locking recess on the front surface of the lens 10.

After attaching the first and second washers 28, 38 to the lens 10 side, the connecting portion 20 is overlapped so as to abut the flange portions 28b, 38b of the first and second washer 28, 38, and the connecting portions are connected. The bolt holes 15 of 20 are aligned with the cylindrical portion 28 a of the first washer 28, and the engaging protrusion 16 ′ is inserted into the cylindrical portion 38 a of the second washer 38.
As a result, the engaging projection 16 ′ of the connecting portion 20 is engaged with the locking recess 10 of the lens 10 via the cylindrical portion 8 b of the second washer 38.
It is in a state of being engaged with b.

Then, the bolt 21 is inserted from the bolt hole 15 of the connecting portion 20 through the cylindrical portion 28a of the first washer 28, and the bolt shaft portion 21b protruding to the rear surface side of the lens 10.
Then, the nut 22 is screwed and tightened through the resin flat bush 23 and the metal flat washer 24.

In the second embodiment, when the first and second washers are attached, both the first and second washers 28 and 39 have a shape in which an annular flange portion is provided at one end of the cylindrical portion. Therefore, it is not necessary to confirm the direction of the washer and attach it to the lens, and the attaching operation can be easily performed. Further, since the first washer 28 and the second washer 38 are independent, even if the size and the positional relationship between the coupling hole 10a of the lens 10 and the locking recess 10b are different, the first and second washers are provided. 28, 38 can be shared.

Further, between the metal connecting portion 20 and the lens 10, the resin-made first and second washers 28, 38 are provided.
Since the flange portions 28b and 38b of the lens are interposed, there is no possibility of damaging the lens 10 at the time of tightening.

6 and 7 show glasses according to the third embodiment of the present invention. In the third embodiment, the structure of the metallic connecting portion 20 is the same as that of the second embodiment, and the bolt hole 15 and the columnar engagement protrusion 16 'are provided. The lens 10 is also the same as in the second and first embodiments, with the connecting hole 10a and the locking recess 10b.
And are provided. The resin washer 48 is different from that of the first and second embodiments, and the connecting hole 10a of the lens 10 is used.
Flange portion 48 provided at one end of the cylindrical portion 48a to be inserted into
b is formed to extend toward the locking recess 10b side of the lens 10. An engaging hole 48c is formed in the extending portion at a position corresponding to the locking recess 10b.

In the assembling work of the third embodiment, first, the cylindrical portion 48a of the washer 48 is inserted into the connecting hole 10a of the lens 10 to bring the flange portion 48b into contact with the front surface of the lens 10 and the engaging hole 48c. The locking recess 10b of the lens 10
To match. At this time, the engaging hole 48c and the locking recess 10b
If there is a positional deviation between and, if the cylindrical portion 48a inserted into the connection hole 10a is rotated as a fulcrum, the position can be easily adjusted.

After attaching the washer 48 to the lens 10, the connecting portion 20 is overlapped so as to abut the flange portion 48b of the washer 48, and the bolt hole 15 of the connecting portion 20 is aligned with the cylindrical portion 48a of the washer 48. The engaging projection 16 'is aligned with the engaging hole 48c, and is fitted into the engaging recess 10b of the lens 10 through the engaging hole 48c. Next, attach the bolt 21 to the washer 48 from the bolt hole 15 of the connecting portion 20.
Then, the nut 22 is screwed into the bolt shaft portion 21b projecting to the rear surface side of the lens 10 through the resin flat bush 23 and the metal flat washer 24, and is tightened.

In the third embodiment, the washer 48 has a simple shape, and only one cylindrical portion 48a has the lens 10a.
Need only be inserted into the connecting hole 10a of the lens, and the engaging hole 48c need only be aligned with the locking recess 10b of the lens 10.
Since it is not fitted, the work of attaching the washer 48 is easy. If the engaging hole 48c has a relatively large diameter or a long hole, the engaging hole 48c can be commonly used even if the dimensions between the connecting hole 10a of the lens 10 and the locking recess 10b are slightly different.

Further, since the large-area flange portion 48b of the resin washer 48 is interposed between the metal connecting portion 20 and the lens 10, there is no possibility of damaging the lens 10 at the time of tightening. Absent.

[0045]

As is apparent from the above description, the glasses of the present invention have the effects listed below.

First, in the spectacles of claim 1, since the resin washer inserted into the lens connecting hole is not provided with the protrusion to be inserted into the locking recess of the lens, the direction of the washer when the washer is assembled to the lens is changed. There is no need to check, and installation work can be done easily. Moreover, even if the size and the positional relationship between the connecting hole and the locking recess differ depending on the type of the frame, the washer is simply attached to the connecting hole, so that it can be used commonly for any lens.
On the other hand, the rotation stop at the time of screwing with the bolt and the nut can be reliably performed because the tip protrusion of the engagement protrusion provided in the connecting portion is inserted into the locking recess of the lens. In addition, since the engaging projection has a two-step shape, and the first step acts similarly to the flange portion of the washer, the space between the connecting portion and the lens is kept substantially the same as the washer mounting portion, and the bolt and the nut are retained. It is possible to prevent the connecting portion from tilting and hitting the lens when it is tightened.

In the eyeglasses of claim 2, since the independent cylindrical parts of the first washer and the second washer are inserted into the connecting hole and the locking recess of the lens, respectively, the direction of each washer is the same as that of the eyeglasses of claim 1. It is not necessary to confirm the above and assemble it to the lens, and even if the size and the positional relationship between the connecting hole and the locking recess differ depending on the type of the frame, it can be used commonly for any lens. In addition, since the engaging projection of the connecting portion does not directly contact the lens and passes through the second washer, there is no possibility that the lens may wear due to contact with the engaging projection.

In the eyeglasses of claim 3, since there is only one washer and the shape is extremely simple, it can be manufactured at low cost. Further, since the washer only needs to insert the cylindrical portion into the connecting hole with respect to the lens and align the engaging hole with the locking recess of the lens, the assembling property is also improved.

In the spectacles according to the fourth aspect, the bolt head is embedded in the bolt hole recess of the connecting portion, so that no external force acts on the bolt. Therefore, it is possible to prevent the bolt from being rotated by the external force and loosening the tightening with the nut.

In the glasses of claim 5, the nut tightening side is also
Since the resin flat bush is applied to the contact surface with the lens, it is possible to prevent the lens from being damaged by tightening the nut. Moreover, since the metal flat washer is interposed between the resin flat bush and the nut, the nut tightening strength can be improved.

[Brief description of drawings]

FIG. 1 is a schematic overall view of glasses according to a first embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of the first embodiment.

FIG. 3A is an exploded perspective view of an essential part of the first embodiment,
(B) is a perspective view of the connecting portion 20 as viewed from the front side.

FIG. 4 is a cross-sectional view of essential parts of a second embodiment.

FIG. 5 is an exploded perspective view of essential parts of a second embodiment.

FIG. 6 is a cross-sectional view of essential parts of a third embodiment.

FIG. 7 is an exploded perspective view of essential parts of a third embodiment.

FIG. 8 shows an example of a conventional example, (A) is an exploded perspective view of a main part, and (B) is a sectional view of the main part.

9A and 9B show another example of a conventional example, FIG. 9A is an exploded perspective view of a main part, and FIG. 9B is a sectional view of the main part.

[Explanation of symbols]

 10 (10A, 10B) Lens 10a Connection hole 10b Locking recess 11 Connection member 12 Wisdom 13 Crane 15 Bolt hole 16 Engagement protrusion 16b Tip protrusion 18, 28, 38, 48 Washer 18a, 28a, 38a, 48a Cylindrical portion 18b , 28b, 38b, 48b Flange part 20 Connection part 21 Bolt 21a Bolt head 21b Bolt shaft part 22 Nut 23 Resin flat bush 24 Metal flat washer

Claims (5)

[Claims] 1. A connection member for connecting the insides of the left and right lenses and an outside of the left and right lenses, respectively, for connecting the wisdom to a temple, and a connecting member for connecting the lenses to the lens. And each connection of Satoshi,
A two-step engaging projection is provided at a position close to the bolt hole while penetrating the bolt hole, while a coupling hole and a locking recess into which the tip projection of the engaging projection is inserted are provided on the lens side. And a resin washer having a flange portion that engages with the peripheral edge of the connecting hole is provided at one end of the cylindrical portion that is fitted into the connecting hole of the lens, and the cylindrical portion of the washer is inserted into the connecting hole of the lens. With the flange part in contact with the front surface of the lens, bring the connecting part into contact with the flange part of the washer, and insert the tip projection of the engaging projection into the locking recess of the lens. Eyeglasses characterized in that a bolt is passed through the cylindrical portion of the washer, and a nut is tightened and fixed to the bolt protruding from the rear surface of the lens. 2. A connection member for connecting the insides of the left and right lenses and an outside of the left and right lenses, respectively, which is connected to the wisdom, and a connection member for connecting the lenses to the lens in the rimless type glasses. And each connection of Satoshi,
The engaging hole is provided so as to penetrate through the bolt hole, and the engaging protrusion is provided at a position close to the bolt hole, while the connecting hole and the engaging recess into which the engaging protrusion is inserted are provided on the lens side, and the connecting hole of the lens is provided. A first washer made of resin having a flange portion that engages with the peripheral edge of the coupling hole at one end of the cylindrical portion that fits in the inner side of the cylindrical portion; Provide a resin second washer with a flange to stop, insert the cylindrical part of the first washer into the connecting hole of the lens to bring the flange into contact with the front surface of the lens, and the second to the locking recess of the lens. With the cylindrical portion of the washer inserted and the flange brought into contact with the front surface of the lens, bring the connecting portion into contact with the flange portion of the first washer and the second washer, and the engaging protrusion on the cylindrical portion of the second washer. Insert and stack, and insert the bolt Pass the bolt through the cylinder of the No. 1 washer,
Eyeglasses characterized in that a nut is tightened and fixed to a bolt protruding from the rear surface of the lens. 3. A connection member for connecting the insides of the left and right lenses and an outer side of the left and right lenses, respectively, for connecting to the wisdom, and a connection member for connecting the lenses to the lens in the frameless type glasses. And each connection of Satoshi,
The engaging hole is provided so as to penetrate through the bolt hole, and the engaging protrusion is provided at a position close to the bolt hole, while the connecting hole and the engaging recess into which the engaging protrusion is inserted are provided on the lens side, and the connecting hole of the lens is provided. A washer made of resin is provided at one end of the cylindrical portion that fits in the inside of the resin washer, the resin washer extending along the engaging recess and engaging the peripheral edge of the connecting hole, and having an engaging hole formed at a position facing the engaging recess. Insert the cylindrical part of the washer into the connecting hole of the lens, bring the flange part into contact with the front surface of the lens, and arrange the engaging hole so as to face the locking recess, and overlap the connecting part with the flange part of the washer. With the engaging projection of the connecting portion inserted into the engaging recess of the lens through the engaging hole of the washer, insert the bolt through the bolt hole into the cylindrical portion of the washer, and tighten the nut on the bolt protruding from the rear surface of the lens. Glasses characterized by being fixed . 4. The bolt hole formed in the connecting portion has a recessed portion in which the front end side is expanded to have a bolt head fitted therein, and
The spectacles according to any one of claims 1 to 3, wherein the shape of the recess is set so that the head of the bolt is prevented from rotating. 5. The nut is fastened to a bolt protruding from the other surface side of the lens through a resin flat bush and a metal flat washer from the contact surface side with the lens. The glasses according to any one of 1.