JP3121665U - Rotating structure of eyeglass parts - Google Patents

Abstract

An object of the present invention is to provide a rotating structure for a spectacle part which gives a sufficient frictional resistance when rotating a rotating shaft and does not contain dust.
A rotating structure of a spectacle component for rotating a second member with respect to a first member, a rotating shaft 3 provided on the first member, and press-fitted into the rotating shaft from the outside. A cylindrical member 4 having elasticity, and the cylindrical member is fitted to the second member in a state of being pressed by the pressing member 5, and the cylindrical member is not rotated even if the rotation shaft of the first member is rotated. Rotating structure for eyeglass parts that do not rotate. And the 2nd member has the groove part 2a in which a cylindrical member is engage | inserted, and the circular arc surface for contacting with the surrounding surface of a cylindrical member is formed in the groove part.
[Selection] Figure 2

Description

The present invention relates to a rotating structure in which a second member, for example, a temple can rotate with resistance with respect to a first member, for example, a bracket.
More specifically, the present invention relates to a rotating structure of an eyeglass component that has an appropriate resistance (grip feeling) when the eyeglass component is rotated, and the movement of the eyeglass component is constrained after the rotation so that the position of the eyeglass component is not displaced.

Conventionally, a structure as shown in FIG. 9 and FIG. 10 is known as a rotating structure of a spectacle component (see, for example, Patent Document 1).
In this figure, in order to rotatably attach the main front frame 100 to the sub-front frame 101, a turning structure of spectacle parts is applied to the bridge portion 102.

FIG. 9A shows a state in which the main front frame 100 is suspended from the sub front frame 101.
FIG. 9B shows a state in which the main front frame 100 is rotated with respect to the sub front frame 101.

FIG. 10 shows the rotation structure of the main front frame 100.
The connecting structure between the main / front frame 100 and the sub / front frame 101 uses a round bar-shaped rotating shaft 103.
As the rim 104 of the main front frame 100 rotates, the rotating shaft 103 and the resin pipe 105 shown in FIG. 10 also rotate.

At this time, the rotating shaft 103 and the resin pipe 105 rotate integrally while resisting the frictional resistance with the bridge housing 106 and the elastic force of the leaf spring 106a.
That is, while the resin pipe 105 is linearly in contact with the leaf spring 106a and the bridge housing 106, the rotation shaft 103 and the resin pipe 105 are in contact with each other on the entire circumferential surface of the rotation shaft 103. The pipe 105 is integrally rotated.
When the rotation of the main front frame 100 is stopped at an angle desired by the wearer, the resin pipe is subjected to frictional resistance between the resin pipe 105 and the bridge housing 106 and urging force due to elastic deformation from the leaf spring 106a. 105 and the rotating shaft 103 are held at that position.
A so-called moderation feeling is generated in the rotation of the main front frame 100 with respect to the sub-front frame 101.

JP 2003-121803 A

However, in the rotating structure of the spectacle parts as described above, the contact area between the resin pipe 105 and the bridge housing 106 is small, and even if the leaf spring 106a is pressed by the screw 107, sufficient frictional resistance cannot be exhibited.
That is, the resin pipe 105 is only in linear contact with the concave surface of the bridge housing 106 at three locations and at one location with the leaf spring 106a, and the frictional force cannot be sufficiently exerted.
On the other hand, in such a rotating structure, a space is inevitably generated between the concave portion of the bridge housing 106 and the resin pipe 105, so that dust or the like is likely to enter. Cause wear.

The present invention has been made on the basis of such background technology, and has been made to overcome the above-described problems of the background technology.
That is, an object of the present invention is to provide a rotating structure of spectacle parts that gives a sufficient frictional resistance when rotating a rotating shaft and does not receive dust or the like.

  Thus, as a result of earnest research on the background of such problems, the inventor gave a large frictional resistance to the cylindrical member to prevent the rotation, and the frictional resistance between the rotating shaft and the resin pipe The inventors have found that the above-mentioned problems can be solved by fully exerting their power, and have completed the present invention based on this knowledge.

  That is, the present invention is (1) a rotating structure of spectacle parts for rotating a second member relative to a first member, the rotating shaft provided on the first member, and the rotating shaft A tubular member having elasticity that is press-fitted from the outside, and the tubular member is fitted to the second member in a state of being pressed by the pressing member, and the rotation shaft of the first member is The cylindrical member exists in the rotating structure of the spectacle component in which the cylindrical member does not rotate even if it is rotated.

  Further, according to the present invention, (2), the second member has a groove part into which the cylindrical member is fitted, and the groove part is formed with an arcuate surface for contacting the peripheral surface of the cylindrical member. It exists in the rotation structure of the spectacles component as described in said (1).

  Moreover, this invention exists in the rotation structure of the spectacles part as described in said (2) whose said circular arc surface is a semicircular surface (3).

  Further, the present invention resides in (4) the rotating structure of the spectacle component according to the above (2), wherein the cylindrical member protrudes from the groove portion with a certain thickness, and the protruding portion is pressed by the pressing member. .

  Further, the present invention resides in (5) the rotating structure of the spectacle component according to (2), wherein the pressing member is also provided with a groove, and the cylindrical member enters and contacts the groove. .

  In the present invention, (6), one end of the pressing member is fitted into the second member, the other end is screwed into the second member by the screw member, and the cylindrical member is pressed by the central portion. (2) It exists in the rotation structure of the spectacles components described.

  Further, in the present invention (7), the one end and the other end of the pressing member are screwed to the second member by the screw member, and the cylindrical member is pressed by the central portion of the pressing member (2 ) It exists in the rotation structure of the spectacles part of description.

  In addition, the present invention is (8), wherein the screw member is screwed into the bag screw hole formed in the pressing member through the through hole formed in the second member, whereby the second member, the first member, and the pressing member. In the rotating structure of the spectacle component according to the above (5).

  Further, the present invention (9), by screwing the screw member into the bag screw hole formed in the receiving member through the through hole formed in the pressing member and the through hole formed in the second member, There exists in the rotation structure of the spectacles component of the said (5) description to which the press member, the 1st member, the 2nd member, and the receiving member are mutually fixed.

  Moreover, this invention exists in the rotation structure of the spectacle components of the said (1)-(7) description whose (10) and a 1st member and a 2nd member are a bracket and a temple.

Further, the present invention resides in (11) the rotating structure of the spectacle component according to the above (8) and (9), wherein the first member and the second member are a temple and a bracket.

  In addition, as long as the objective of this invention is met, the structure which combined the said (1) to (11) suitably is also employable.

  According to the present invention, the rotating structure of the spectacle component for rotating the second member relative to the first member, the rotating shaft provided on the first member, and press-fitted into the rotating shaft from the outside A cylindrical member having elasticity, and the cylindrical member is fitted to the second member in a state of being pressed by the pressing member, and the cylindrical member is rotated even if the rotation shaft of the first member is rotated. Since it does not rotate, the frictional resistance between the cylindrical member and the rotating shaft can be sufficiently exhibited.

Further, the second member has a groove portion into which the cylindrical member is fitted, and the groove portion is formed with an arc surface for contacting the peripheral surface of the cylindrical member, so that dust or the like enters the groove portion. This is prevented as much as possible.
In addition, since the tubular member has a certain thickness protruding from the groove portion and the protruding portion is pressed by the pressing member, the elastic tubular member is deformed and the area of contact with the inner wall of the groove portion is increased and the frictional force is also increased. In addition, the gap between the grooves can be made as small as possible.
Further, the tubular member has an effect of tightening the rotating shaft, and the frictional resistance between the tubular member and the rotating shaft is increased.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows spectacles having an embodiment of a rotating structure for spectacle parts of the present invention.
As shown in the drawing, the rotating structure of the spectacle component of this embodiment is used to connect the temple 2 and the bracket 1.
Of course, it can be applied anywhere as long as the rotating structure can be applied. For example, the rotating structure may be applied to double frame glasses for rotating auxiliary glasses such as sunglasses with respect to the main body glasses.

FIG. 2 shows the parts constituting the rotating structure of the spectacle parts and the assembly procedure thereof.
FIG. 2A shows the distal end side of the bracket 1 that is the first member.
More specifically, a columnar rotating shaft 3 is provided between a pair of plate portions 1 a (also referred to as “frame”) of the bracket 1.
In order to attach the rotating shaft 3 between the plate portions 1a, when the bracket 1 is formed, the rotating shaft 3 may be simultaneously formed integrally between the plate portions.

Of course, it is also possible to attach a separate rotating shaft 3 between the plate portions by adhesion without integrally molding.
A separate cylindrical member 4 made of an elastic resin material is press-fitted into the rotating shaft 3.
In this case, the rotary shaft 3 is press-fitted while opening the slot formed in the tubular member 4.
As the material of the cylindrical member 4, for example, polyacetal resin, polyamide resin, PEEK resin, or the like can be used from the viewpoint of wear resistance.

Next, as shown in FIG. 2B, the tubular member 4 is fitted into the groove 2a formed in the temple 2 as the second member.
The groove 2a is formed with an arcuate surface (in this case, the arcuate surface is a semi-circumferential surface) for making contact with the peripheral surface of the tubular member 4, and is U-shaped. It is only necessary to fit the tubular member 4 of the bracket so that the surfaces abut against each other.

FIG. 2C shows a state in which the bracket 1 is fitted into the temple 2.
As shown in the figure, when the rotating shaft 3 of the bracket 1 is fitted into the groove 2a of the temple 2, the cylindrical member 4 protrudes from the groove 2a by a certain thickness.
Next, as shown in FIG. 2 (d), the protruding portion is pressed by a plate-like rigid pressing member 5 as shown in FIG.
As a material of the pressing member 5, a material that does not bend even when the cylindrical member is pressed, for example, a metal (for example, titanium alloy) or a hard plastic can be used.

Specifically, the pressing member 5 is formed with through holes 5a at two locations, one end and the other end, and the temple 2 is formed with two screw holes 2b corresponding to the respective through holes 5a.
The cylindrical member 4 is pressed at the central portion of the pressing member 5 by being screwed into the screw 6 screw hole 2b through each through hole 5a.
FIG. 2E shows a state in which the pressing member 5 is attached and the cylindrical member 4 is pressed by the pressing member 5.

FIG. 3 shows a cross section of the connection structure between the bracket 1 and the temple 2.
FIG. 3A shows a state before the pressing member 5 is attached, and FIG. 3B shows a state after the pressing member 5 is attached and pressed.
As shown in FIG. 3A, before the pressing member 5 is attached, half of the outer peripheral surface of the cylindrical member 4 is in contact with the groove portion 2 a, and a part of the upper end side of the cylindrical member 4 is the upper surface of the temple 2. A certain thickness protrudes from 2c.

From this state, when the pressing member 5 is brought into contact with the temple 2 and tightened using the two screws 6 as described above, as shown in FIG. 3B, a cylindrical shape made of an elastic resin material is used. The member 4 is deformed by receiving pressure, and is fitted in a state where the contact area with the groove 2a is further expanded.
The elastic force of the cylindrical member 4 increases and the frictional resistance with the inner wall of the groove increases, so that the cylindrical member 4 is securely gripped by the groove.
Moreover, the space | gap in a groove part becomes smaller and intrusion of dust etc. is prevented as much as possible.
On the other hand, the cylindrical member 4 has an effect of tightening the rotating shaft 3, and the frictional resistance between the cylindrical member 4 and the rotating shaft is increased, and the cylindrical member 4 does not rotate even if the rotating shaft 3 is rotated. As a result, the resistance force (that is, the grip force) when the temple 2 is rotated increases, and the force that holds the temple 2 at a certain angular position also increases.

Although the present invention has been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that other various modifications are possible without departing from the essence thereof.
For example, in the above-described embodiment, the case where the pressing member 5 is attached to the temple 2 with the two screws 6 has been described, but there is also a structure in which the pressing member 5 is attached in a cantilever manner.

As shown in FIG. 4, a stepped portion 5 b may be formed at one end of the pressing member 5 </ b> A and fitted inside the inverted L-shaped protruding portion 2 d of the temple 2.

In the mounting structure in this case, the stepped portion 5b, which is one end of the pressing member 5A, is fitted inside the protrusion 2d, and the screw hole 2b of the temple 2A is screwed with the screw 6 through the through hole 5a on the other end side of the pressing member 5A. When the screw 6 is screwed, the lever force is applied by tightening the screw 6, and the cylindrical member 4 is strongly pressed by the pressing member 5A [FIG. 4 (a) → FIG. 4 (b)].
As a result, one end of the pressing member is fitted into the temple 2A and the other end is screwed into the temple 2A, and the cylindrical member 4 is pressed by the central portion.
By this pressing, the gap in the groove portion is reduced, and there is no co-rotation of the cylindrical member due to the rotation of the rotating shaft.

Further, as shown in FIG. 5, an L-shaped pressing member 5B is used, and a protrusion 5c formed on the short piece side of the L-shaped pressing member 5B is formed in a groove 2e formed at the end of the temple 2B. You may engage (refer Fig.5 (a)).
Also in this case, one end of the pressing member is fitted into the temple 2B and the other end is screwed into the temple 2B, so that the cylindrical member is pressed by the central portion thereof, and the effect is almost the same as the structure shown in FIG. Is obtained.

  In the above-described embodiment, the example using the plate-like pressing member 5 has been described. However, as shown in FIG. 6, the arc-shaped groove 5d is formed not only in the temple 2C but also in the pressing member 5C. The frictional resistance can also be obtained by tightening and fixing the shaped member 4 between the inner peripheral surface of the arc-shaped groove of the pressing member 5C and the groove portion of the temple 2C.

  Further, as shown in FIG. 7A, a trapezoidal groove 50d and a cap screw hole 50a are formed in the pressing member 50, and an arcuate surface is formed in the bracket 20 as the second member to form a U-shaped groove portion. 20a and through hole 20b are formed. Then, the screw member 60 is screwed into the bag screw hole 50a of the pressing member 50 through the through hole 20b of the bracket 20, and as shown in FIG. 7B, the bracket 20, the temple 10 as the first member, and the pressing member The members 50 are integrated with each other. Thereby, the cylindrical member 40 can be clamped and fixed between the inner surface of the groove 50d of the pressing member 50 and the groove portion 20a of the bracket 20 to obtain a frictional resistance.

  Further, as shown in FIG. 8A, a trapezoidal groove 50d and a through hole 50a1 are formed in the pressing member 50, and an arcuate surface is formed in the bracket 20 to form a U-shaped groove 20a and a through hole 20b. Form. Furthermore, the receiving member 70 provided with the bag screw hole 70a is prepared. Then, the screw member 60 is screwed into the bag screw hole 70a of the receiving member 70 through the through hole 50a1 of the pressing member 50 and the through hole 20b of the bracket 20, and the pressing member 50, as shown in FIG. The bracket 20, the temple 10, and the receiving member 70 are integrated with each other. Thereby, the cylindrical member 40 can be clamped and fixed between the inner surface of the groove 50d of the pressing member 50 and the groove portion 20a of the bracket 20 to obtain a frictional resistance.

  In the modification described with reference to FIGS. 7 and 8, since it is not necessary to form a screw hole in the bracket, the bracket, which is an important product, is not discarded as a defective product due to a defect in the formation of the screw hole. .

Further, in the above-described embodiment, the example using the cylindrical member 4 in which the slit is formed has been described. However, the rotary shaft 3 may be press-fitted into a simple cylindrical member without the slit.
In this case, the rotating shaft 3 in a state where the cylindrical member is press-fitted is attached between the pair of plate portions 1 a of the bracket 1.

FIG. 1 is an explanatory view showing eyeglasses having an embodiment of a turning structure for eyeglass parts of the present invention. 2A and 2B are explanatory views showing parts constituting the rotating structure of the spectacle parts and the assembling procedure thereof. FIG. 2A shows the front end side of the bracket, and FIG. 2B shows a cylindrical member formed on the bracket. The state before fitting into the groove is shown, (c) shows the state where the cylindrical member is fitted into the groove formed in the bracket, and (d) shows the state before the pressing member is attached to the bracket. (E) has shown the state after connecting a bracket and a bracket. 3A and 3B are explanatory views showing a cross section of the bracket-to-bracket connecting structure, in which FIG. 3A shows a state before the pressing member is attached, and FIG. 3B shows a state after the pressing member is attached. . 4A and 4B are explanatory views showing a modification of the rotating structure of the spectacle component of the present invention, in which FIG. 4A shows a state before the pressing member is attached, and FIG. 4B shows a state after the pressing member is attached. Show. FIGS. 5A and 5B are explanatory views showing another modified example of the rotating structure of the spectacle component of the present invention. FIG. 5A shows a state before the pressing member is attached, and FIG. 5B shows a state after the pressing member is attached. Indicates the state. FIG. 6 is an explanatory view showing still another modified example of the rotating structure of the spectacle component of the present invention, and shows a state after the pressing member is attached. FIGS. 7A and 7B are explanatory views showing another modified example of the rotating structure of the spectacle component of the present invention, wherein FIG. 7A shows a state before the pressing member is attached, and FIG. 7B shows a state after the pressing member is attached. Indicates the state. FIG. 8 is an explanatory view showing still another modified example of the rotating structure of the spectacle component of the present invention, wherein (a) shows a state before the pressing member and the receiving member are attached, and (b) shows the pressing member. And the state after attaching a receiving member is shown. FIG. 9 is an explanatory view showing an example of an application place of a conventional rotating structure of spectacle parts, in which (a) shows a state where the main front frame is suspended from the sub-front frame, and (b) shows The main front frame is shown rotated with respect to the sub front frame. FIG. 10 is an explanatory view showing the pivoting structure of the main / front frame in the conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bracket 1a Plate part 2,2A, 2B, 2C Temple 2a Groove part 2b Screw hole 2c Upper surface 2d Projection part 2e Groove 3 Rotating shaft 4 Cylindrical member 5, 5A, 5B, 5C Press member 5a Through hole 5b Step part 5c Projection 5d Groove 6 Screw member 10 Temple 20 Bracket 20a Groove portion 20b Through hole 30 Rotating shaft 40 Cylindrical member 50 Press member 50a Bag screw hole 50a1 Through hole 50d Groove 60 Screw member 70 Receiving member 70a Bag screw hole 100 Main front frame 101 Sub Front frame 102 Bridge portion 103 Rotating shaft 104 Rim 105 Resin pipe 106 Bridge housing 106a Leaf spring 107 Screw

Claims (11)

A rotating structure of a spectacle component for rotating the second member relative to the first member,
A rotating shaft provided on the first member;
A cylindrical member having elasticity that is press-fitted into the rotating shaft from the outside;
With
The cylindrical member is fitted to the second member in a state of being pressed by a pressing member,
A rotating structure of spectacle parts, wherein the cylindrical member does not rotate even if the rotation shaft of the first member is rotated. The second member has a groove portion into which the cylindrical member is fitted,
2. The rotating structure for spectacle parts according to claim 1, wherein an arcuate surface for contacting the peripheral surface of the cylindrical member is formed in the groove.   The rotating structure for spectacle parts according to claim 2, wherein the arc surface is a semi-circumferential surface.   3. The rotating structure for spectacle parts according to claim 2, wherein the cylindrical member protrudes from the groove portion with a certain thickness, and the protruding portion is pressed by the pressing member.   The rotating structure for spectacle parts according to claim 2, wherein a groove portion is formed in the pressing member, and the cylindrical member also enters and contacts the groove portion.   The one end of the pressing member is fitted into the second member, the other end is screwed into the second member by a screw member, and the cylindrical member is pressed by a central portion. 2. A rotating structure of spectacle parts according to 2.   The one end and the other end of the pressing member are screwed to the second member by a screw member, and the cylindrical member is pressed by a central portion of the pressing member. Rotating structure of eyeglass parts.   The second member, the first member, and the pressing member are fixed to each other by screwing the screw member into the bag screw hole formed in the pressing member through the through hole formed in the second member. The rotating structure for spectacle parts according to claim 5, wherein:   The pressing member and the first member are screwed into a bag screw hole formed in the receiving member through a through hole formed in the pressing member and a through hole formed in the second member. The rotating structure for spectacle parts according to claim 5, wherein the second member and the receiving member are fixed to each other.   The rotating structure for eyeglass parts according to claim 1, wherein the first member and the second member are a bracket and a temple.   The rotating structure for eyeglass parts according to claim 8, wherein the first member and the second member are a temple and a bracket.

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