JP4049319B2 - Retractable glasses and vine length adjuster - Google Patents

Description

  The present invention relates to an eyeglass vine that can be expanded and contracted, and an adjustment tool that adjusts the length of the vine.

  As shown in FIG. 9, a general spectacle frame has a front part (A) and a crane (B) and (B), and the temples (B) and (B) are on both sides of the front part (A). It can extend from and fold. The front part (a) has both rims (c) and (c) connected by connecting members (d), and the outer parts of the rims (c) and (c) are fixed to the outer parts (e) and (e). The cranes (B) and (B) are foldably attached to the arms (E) and (E) via joints.

  The nose pads (f) and (f) are attached to the inner side of the rim (c) and (c) and below the connecting member (d), and the tips of the cranes (b) and (b) are attached. Resin modern (g) and (g) are inserted in the part. By the way, the rim (c) and (c) are fitted with a predetermined lens and put on the face, but the front part (a) is supported by placing the nose pad (f) and (f) against the nose. (B), (b) can be placed on the ear along the side of the face.

  Of course, the frame of the vine (B) is adjusted to select the eyeglass frame whose front part (A) matches the face. In other words, the modern (g) is bent so as to match the position of the ear. In this way, the glasses are adjusted so that the nose pads (f) and (f) of the front part (b) are correctly placed on the nose and supported, and the temples (b) and (b) are locked to the ears. However, there is also known an eyeglass frame in which the vine (b) has a structure that can be expanded and contracted so that the length can be easily adjusted.

  FIG. 10 is the simplest method showing the length adjustment mechanism of the crane. The crane (b) is composed of a crane main body (li) and a crane member (nu) and has an adjustment portion (le) that can slide on each other. A plurality of pin holes (chi), (chi),... Are formed at equal intervals in the temple member (nu) of the adjusting portion (le). A pin is inserted into the pin hole (chi), and a tip is fitted and fixed in a hole provided in the temple main body (li). By inserting a pin into an appropriate pin hole (h) of the crane member (n), the length of the crane (b) can be adjusted appropriately.

  However, such a length adjusting mechanism can be adjusted only at the interval between the pin holes (h), (h). In addition, by providing such an adjustment portion (ru) on the vine (b), the thickness of the vine inevitably increases, and the appearance of the spectacle frame is impaired. That is, it is not suitable for a slim glasses frame in recent years.

  FIG. 11 shows another specific example of the length adjusting mechanism. In this specific example, a screw mechanism is employed. If the crane member (nu) is rotated with respect to the crane body (ri) connected to the front side, the length of the crane (b) can be expanded and contracted. The length adjustment can be performed at a pitch interval of the screws, and the length is locked by tightening a lock nut (e) with a predetermined length. However, it is not possible to completely fix the crane member (nu) just by tightening the lock nut (e), and if it rotates even a little, the direction of the modern inserted at the tip changes and locks to the ear. I can't.

  Thus, the conventional vine length adjusting mechanism has the above-mentioned problems. The problems to be solved by the present invention are these problems, and can be applied to a slim thin vine, and the length adjusting mechanism that does not change the direction of the pad that can be locked to a modern tip or ear hole etc. A telescopic eyeglass vine equipped with Moreover, the length adjustment tool which can adjust the length of a vine simply and in a short time is provided.

  The telescopic spectacles vine according to the present invention employs a screw mechanism and can be finely adjusted at a pitch interval of screws. A part of the crane member is inserted into the hole formed at the tip of the crane body so as not to rotate, and the screw member is provided with a screw part, and an adjustment nut is screwed into the screw part. is doing. Therefore, the length of the adjustment nut is adjusted by rotating the adjustment nut to change the position of the adjustment nut.

  A screw portion is formed on a part of the outer periphery of the adjustment nut, and a lock nut is screwed onto the screw portion and tightened. That is, the lock nut attached to the temple main body side is screwed into the outer peripheral thread portion of the adjustment nut and tightened to fix the temple member inserted into the hole of the temple main body insertion portion. On the other hand, a length adjuster can be comprised by the structure which is not provided with a lock nut. In this case, the adjustment nut can be locked to the distal end of the fitting portion and rotatably mounted, and the crane member can be moved by turning the adjustment nut.

  Conversely, it is also possible to form a hole at the tip of the crane member and connect the hole so that a part of the crane main body is inserted and does not rotate. The temple body is provided with a threaded portion, and an adjusting nut is screwed onto the threaded portion. Therefore, the length of the adjustment nut is adjusted by rotating the adjustment nut to change the position of the adjustment nut.

  A screw portion is formed on a part of the outer periphery of the adjustment nut, and a lock nut is screwed onto the screw portion and tightened. That is, the lock nut attached to the temple member side is screwed into the outer peripheral threaded portion of the adjustment nut and tightened to fix the temple main body fitted in the hole of the temple member insertion portion.

  The spectacles vine of the present invention can be expanded and contracted, and can be adjusted so that the modern or pad at the tip of the vine can be locked to the ear. Since the screw mechanism is employed as the adjusting means, fine adjustment is possible. Also, the vine member that is fitted and connected to the grooved hole in the fitting portion of the vine body does not rotate, and the direction of the modern or pat does not change. Even if the lock nut is loosened, the orientation does not change.

  By rotating the adjustment nut that is screwed onto the crane member, the length of the screw portion that fits into the hole of the fitting portion is adjusted, and the lock nut can be tightened at an appropriate position. And a vine body and a vine member can be made thin, and the length adjustment part of the present invention does not become an obstacle in constituting a slim eyeglass frame.

  FIG. 1 is a plan view showing an eyeglass frame provided with a telescopic crane according to the present invention. In the figure, reference numeral 1 denotes a rim on which a lens is fitted, 2 is a connecting member, 3 is an armor, 4 is a vine, and both rims 1 and 1 are brazed to both sides of the connecting member 2. The above-mentioned Yoroi 3 and 3 are fixed to the outside by brazing. And the said vines 4 and 4 are attached so that it can fold through the joints 5 and 5 provided in the front-end | tip of the armatures 3 and 3. FIG. Also, nose pads 7 and 7 are attached to the inside of the rims 1 and 1.

  By the way, the adjustment part 6 is provided in the temple 4, The length of a temple can be adjusted with the screw mechanism of this adjustment part. A resin pad 8 is provided at the tip of the vine, and the pad 8 is fitted into and engaged with a concave recess inside the outer ring of the ear.

  The pad 8 is formed of a smooth curved surface having an approximately egg shape so that the pad 8 is fitted in the recess of the ear and is not displaced. Of course, the shape of the pad 8 is not limited to the above-described egg shape, and it is sufficient that the pad 8 can be engaged with the recess without causing pain.

  Here, the material of the temple 4 is not limited, but a conventional eyeglass frame temple may be used, and it has elasticity that can be flexibly deformed so as not to feel pain even if the pad 8 fits into the recess of the ear. When a crane material that is not excellent in elasticity is used, a spring hinge is used as the joint. As is well known, the spring hinge is configured so that the temple 4 can be pushed outward from the state in which the temple 4 is opened when putting on glasses. It can be engaged with the recess.

  FIG. 2 shows the adjusting portion 6 and the pad 8 at the tip of the vine. (a) is an external view, (b) shows an internal structure, the temple main body 9 and the temple member 10 are connected via the adjustment part 6, and the length of the temple 4 can be adjusted. The temple member 10 is inserted into a hole formed at the tip of the temple body 9, and the length of the temple 4 can be changed by adjusting the insertion length into the hole.

  The adjustment portion 6 is provided with an adjustment nut 11 and a lock nut 12. The adjustment nut 11 is screwed into a screw portion 13 provided on the temple member 10, and the lock nut 12 is provided on a part of the adjustment nut 11. The screw portion 14 is screwed and tightened. FIG. 3 shows a case where the adjustment nut 11 is screwed into the threaded portion 13 of the temple member 10. The length A to the nut 11 is large, and in the case of (b), the position of the adjustment nut 11 moves to the left side, and the length a from the tip of the temple member 10 to the adjustment nut 11 is small.

  The distances A and a from the tip of the temple member 10 to the adjustment nut 11 are portions that fit into holes formed in the tip of the temple body 9. Accordingly, in the case of (a), the length A can be fitted into the hole of the temple body 9, and in the case of (b), the length a can be fitted into the hole of the temple body 9. Therefore, when the length of the temple 4 is lengthened, the length to be fitted is shortened as shown in a, as shown in (b), and conversely, when the length of the temple 4 is shortened, it is fitted. Increase the length as A.

  FIG. 4 is an enlarged view showing the distal end portion of the crane main body 9, and the distal end portion has a fitting portion 15 into which the temple member 10 is fitted. The fitting portion 15 forms a hole 16 having an open end, and is provided with a guide groove 17. The screw portion 13 of the temple member 10 is fitted into the hole 16, and the guide piece 18 attached to the tip of the screw portion is fitted into the guide groove 17 and moved.

  The guide piece 18 is a block that fits into the guide groove 17, and partially protrudes to the outside of the screw portion 13, and the protrusion 19 can fit into the guide groove 17. Here, the guide piece 18 is attached to the tip of the screw portion 13 so that the direction thereof does not change. Therefore, when the screw portion 13 is fitted into the hole 16 of the fitting portion 15, the direction of the temple member 10 is constant, As a result, the position of the pad 8 attached to the tip of the temple member 10 does not change.

  As described above, the screw portion 13 of the temple member 10 is fitted into the hole 16 and the fitting length is A or a. That is, the screw part end surface 20 of the adjustment nut 11 contacts the tip 21 of the fitting part 15. FIG. 5 shows a case where the screw portion 13 of the temple member 10 is inserted into the hole 16 of the insertion portion 15. The end surface 20 of the screw portion 14 can be inserted until it contacts the tip 21 of the insertion portion 15, and the length of the screw portion 13 to be inserted changes depending on the position of the adjustment nut 11.

  5B shows an AA cross section, and FIG. 5C shows a BB cross section. In this way, by adjusting the position of the adjustment nut 11, the insertion length of the screw portion 13 can be changed and the length of the temple 4 can be adjusted. However, as shown in FIG. 5, since the screw portion 13 is simply inserted and removed from the insertion portion 15, the lock nut 12 is tightened and fixed.

  The lock nut 12 covers the fitting portion 15 and is screwed into the screw portion 14 of the adjustment nut 11 to be tightened. The fitting portion 15 has a tapered surface 22 that forms a step that increases the outer diameter, and the lock nut 12 is fastened to the screw portion 14 of the adjustment nut 11 so that the tapered surface 22 can be fastened and locked. . FIG. 6 shows a state in which the lock nut 12 is tightened.

  By the way, when adjusting the length of the temple 4, the adjustment nut 11 is rotated when the lock nut 12 is removed, and the position of the pad 8 in FIG. 1 changes. And when it has reached an appropriate position, it is fixed by tightening the lock nut 12.

  FIG. 7 is another form of FIG. 6 and shows a state in which the lock nut 12a is tightened. The lock nut 12 shown in FIG. 6 includes a cylindrical portion for covering the fitting portion 15 of the crane main body 9, but the lock nut 12 a shown in FIG. 6 includes the cover cylindrical portion 32 as a separate member. Therefore, when the lock nut 12a is tightened, the boundary region with the thin cover tube portion 32 is not twisted and the surface coating film is not peeled off. Here, the cover cylinder part 32 can be fixed to a predetermined position by brazing in advance.

  FIG. 8 shows a vine length adjuster for determining the vine length. In order to determine the length of the vine, the lock nut 12 of the adjustment portion 6 is loosened and the adjustment nut 11 is rotated. However, by using the vine length adjuster shown in FIG. It becomes possible to adjust with.

  The basic structure is the same as that shown in FIG. 5, and is composed of a temple body 23, a temple member 24, and an adjustment nut 30. A guide piece 27 is attached to the tip of the screw portion 26 formed in the temple member 24, and is fitted into a hole provided in the temple main body 23, and the guide piece 27 is guided by the guide groove 28 and slides. I can do it.

  Then, the adjustment nut 30 is screwed into the screw portion 26 of the temple member 24. The lock nut 25 is fixedly attached to a claw 29 provided at the tip of the temple main body 23 and can freely rotate. The lock nut 25 is provided with a fitting hole in part in addition to a screw hole, and a concave groove is formed on the inner peripheral surface of the fitting hole. The fitting portion 31 provided at the tip of the crane main body 23 is fitted into the fitting hole of the lock nut 25 and the claw 29 is locked in the concave groove so that it cannot be removed. Further, the screw portion provided in the adjustment nut 30 is screwed into the screw hole of the lock nut 25 and connected. Therefore, if the adjustment nut 30 is rotated, the screwed portion 26 is moved, and the temple member 24 can be slid with respect to the temple body 23, and the length of the temple is adjusted.

  This vine length adjuster can adjust the vine length while wearing glasses. In accordance with this, the vine length is determined by turning the adjustment nut 11 shown in FIG. It is convenient because it can be tightened. However, the length adjuster can be used as an extendable glasses vine.

  The glasses shown in FIG. 1 are the case where the pad 8 is attached to the tip of the vine, but can be configured in the same way when the modern is inserted into the tip of the vine as in the case of general glasses.

The top view of the spectacles frame provided with the vine length adjustment part. The enlarged view which shows a vine length adjustment figure. When the adjustment nut is screwed onto the screw part of the crane member. The tip of the crane body. When the screw part of the crane member is inserted into the insertion hole of the crane body. The cross-sectional enlarged view of a length adjustment part. The cross-sectional enlarged view of a length adjustment figure. Vine length adjuster. General glasses frame. Conventional vine length adjustment mechanism. Conventional vine length adjustment mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rim 2 Connecting member 3 Yoroi 4 Tsuru 5 Joint 6 Adjustment part 7 Nose pad 8 Pad 9 Nail body
10 crane member
11 Adjustment nut
12 Lock nut
13 Screw part
14 Screw part
15 Insertion
16 holes
17 Guide groove
18 Guide piece
19 Protrusion
20 End face
21 Tip
22 Tapered surface
23 crane body
24 crane member
25 Lock nut
26 Screw part
27 Guide piece
28 Guide groove
29 claw
30 Adjustment nut
31 Insertion
32 Cover tube

Claims (6)

In the spectacle vine that can be adjusted in length, the spectacle vine is composed of a vine body and a vine member, and a screw portion of the vine member is inserted into a hole of the lip portion provided at the tip of the vine body, and the screw portion is inserted into the screw portion. The adjustment nut can be screwed to adjust the length of the screw portion inserted into the insertion portion, and the insertion portion is provided with a guide groove in the axial direction to prevent rotation of the screw portion inserted into the hole. A telescopic eyeglass crane characterized in that a lock nut is fastened to a threaded portion of an adjustment nut and a crane body and a crane member are connected and fixed. The extendable spectacles vine according to claim 1, wherein a guide piece is attached to the tip of the screw portion of the crane member, and the protrusion of the guide piece is fitted into a guide groove provided in the fitting portion to prevent rotation. In a spectacle vine whose length can be adjusted, the spectacle vine is composed of a vine body and a vine member, and a screw portion of the vine body is inserted into a hole of a fitting portion provided at a tip portion of the vine member. The adjustment nut can be screwed to adjust the length of the screw portion inserted into the insertion portion, and the insertion portion is provided with a guide groove in the axial direction to prevent rotation of the screw portion inserted into the hole. A telescopic eyeglass crane characterized in that a lock nut is fastened to a threaded portion of an adjustment nut and a crane body and a crane member are connected and fixed. 2. A telescopic spectacles vine according to claim 1, wherein a guide piece is attached to the tip of the screw portion of the crane main body, and the protrusion of the guide piece is fitted into a guide groove provided in the fitting portion to prevent rotation. The telescopic spectacles vine according to claim 1, 2, 3, or 4, wherein the lock nut is configured separately from a cover tube portion for covering the periphery of the fitting portion. In the length adjuster used to adjust the length of the vine, the spectacle vine is composed of a vine body and a vine member, and a screw portion of the vine member is inserted into a hole of the insertion portion provided at the tip of the vine body. The screw portion can be screwed with an adjustment nut to adjust the length of the screw portion inserted into the insertion portion, and the insertion portion is provided with a guide groove in the axial direction to rotate the screw portion inserted into the hole. A vine length adjuster characterized in that a lock nut connected to the adjustment nut is rotatably locked and attached to the end of the fitting portion.

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