JPS61118721A - Glasses with interval varying lens - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to eyeglasses with variable distance lenses, the adjustment device having a telescoping mechanism and a screw for fixing the lens position.

In the case of known eyeglasses of this type, changing the lens spacing primarily serves to adapt the lens spacing to the wearer's face. Correspondingly, the telescoping mechanism is provided with a screw that makes it possible to adjust the spacing as desired. In this case, the guide part of the telescoping mechanism is frictionally fixed to the telescoping part of the telescoping mechanism by tightening the screw.

On the other hand, devices for changing the length of strings are known. This device makes it possible to adjust the length of the strings to improve the comfort of wearing glasses.

For this purpose, a telescoping locking mechanism is provided and adjustment can be effected by screwing the two string parts together or by plastic deformation.

Furthermore, the N 6M is known, whose dimensions are reduced by folding the lens around a pivoting hinge in the area of the nose and folding the strings. In this folded state, it requires minimal space and can be easily stored, for example, in sports clothing.

Departing from these prior art, the present invention provides that the dish can be adapted to the shape of the wearer's face and thus be worn comfortably and immovably, and that it can also be made smaller than its working dimensions; It is an object of the present invention to design eyeglasses in such a way that storage is facilitated and storage space is reduced.

This problem is achieved according to the invention in such a way that the telescopic part is slidably mounted over a given *boto in a guide part having a longitudinal cutout closed on the end side.
An adjustment device for lens spacing and chord length is provided, the telescoping part has a plurality of screw holes, and the free end of the screw, together with the closed end face of the longitudinal notch, is provided between the telescoping part and the guide part. The solution is that a screw is screwed into the screw hole so as to act as a stop for relative movement.

Sakuri and Tate 1 With the adjusting device according to the present invention, the string end can be inserted into the front string part to shorten it, and
The lenses can be brought close to each other until one comes into contact.

This significantly reduces the space required for storage when not in use. At the same time, the desired chord length is achieved by threading a screw into each of the plurality of screw sizes and abutting the free end of the screw against the closed end surface of the longitudinal notch when separating the lens or pulling out the chord end. Or a predetermined lens spacing can be obtained. This lens spacing depends on the wearer's specific requirements. This is II! No special precautions are required when using the mirror.

Fruit of this invention 1tF! %3, the nasal web connecting the lenses is designed as a guide for changing the distance between the lenses. This allows the glasses of the invention to be made with a minimum amount of total soles. Therefore, glasses can be formed very easily.

Furthermore, preferably the telescopic part attached to the guide part is fixed directly to the lens. This further reduces the weight since a frame surrounding the lens is not required. At the same time, you get interesting and beautiful shapes.

Furthermore, it has proven advantageous to pivot the guide part for changing the length of the string on the hinge and to connect the associated telescopic part to the rear string end.

Basically, the movements of the guide part and the telescope part can be reversed, but the above-mentioned structure is better in shape.

BRIEF DESCRIPTION OF THE DRAWINGS Other features, advantages and details of the invention will become apparent from the following description of a preferred embodiment, based on the figures.

The spectacles according to the invention are, for example, two rimless lenses 1.2.
has. A connecting block 3 with a hinge 4 is fixed to the side of the lens 1.2.

A string section 5 is pivotally attached to the hinge. The string section 5 is designed as a hollow body with an approximately rectangular cross section. A longitudinal notch 6 is provided inside each string section 5 . This recess is closed at the end face 7.8. Each string section 5 has a telescoping section 9 engaging within it.
It acts as a guide member for. Each telescoping section 9 has the same outer diameter as the inner diameter of the string section 5, so that it can be slid longitudinally into the associated string section 5 overcoming certain frictional forces. The outer end of each telescope section 9 is
Curved string end 11, usually with synthetic resin covering IO
It is formed as.

In the region of the longitudinal recess 6 of the guide part 5, the telescopic part 9 is provided with a threaded hole 12.

A screw 13 is screwed into this screw hole, the screw head of which projects from the surface of the telescope section 9.

When withdrawing the telescopic part 9 from the guide part 5, the head of the screw 13 rests against the end face end 7 of the longitudinal recess 6 and forms a stop that determines the maximum withdrawal length. By screwing the screws 13 into the individual screw holes, it is possible to determine the maximum length of each string 14 that can be pulled out, and thus the length that can be used.

Lenses 1, 2 are connected by a transverse web 15.

This transverse web 15 includes a guide section 16 with a longitudinal recess 17 . The guide part 16 is designed as a hollow body with a rectangular cross section. A telescoping section 18 engages this hollow body or guide section 16 from both sides. The outer diameter of this telescopic section is the same as the inner diameter of the guide section 16. The telescoping part can therefore be slid into the guide part 16 overcoming a certain amount of friction.

A screw hole 19 is formed in the inner surface of the telescope portion 18. A screw 20 is installed in each of the screw holes 19. When the telescopic part 18 is pulled out of the guide part 16 , the heads of the screws 20 each rest against the closed end face 21 of the longitudinal recess 17 .

By properly positioning the screw 20, the lens 1
．． 2 can be adjusted as follows. That is, when the Ui mirror is worn, the nose pads 22 can be adjusted so that the entire surface of the nose pads 22 does not come into contact with the wearer's nose and is pressed against it. The glasses are thus worn comfortably and comfortably.

When storing the spectacles, the string end 11 can be inserted into the string section 5 and the lenses 1.2 pulled out. This results in a size that is easy to handle. When using the glasses 1, the string end 11 is pulled out and the lenses 1 and 2 are separated. In this case, a ready-to-use III! that fits the wearer's face shape! A mirror is easily obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the wi mirror according to the present invention, and FIG. 2 is a perspective view of the wi mirror according to the present invention.
Figure 3 is an enlarged partial view of the eyeglasses in Figure 1 viewed in the direction of arrow ■; Figure 4 is an enlarged partial view of the eyeglasses in Figure 1 viewed in the direction of arrow ■. FIG. 5.16... Guide portion 6.17... Longitudinal notch 7.21... Closed end surface

Claims (4)

[Claims] (1) In eyeglasses with adjustable distance lenses, in which the adjustment device has a telescoping mechanism and a screw for fixing the lens position, a longitudinal notch (
The lens spacing and the chord length are such that the telescope part (9, 18) is slidably supported overcoming a predetermined frictional force in the guide part (5, 16) with An adjustment device is provided for adjusting the telescope part (9, 1
8) has a plurality of screw holes (12, 19), and further has screws (
13, 20) with longitudinal notches (6, 17)
together with the closed end faces (7, 21) of the telescoping part (9
, 18) and the guide portion (5, 15), screws (13, 20) are screwed into the screw holes (12, 19). (2) Eyeglasses according to claim 1, characterized in that the horizontal web (15) connecting the lenses (1, 2) is formed as a guide portion for changing the distance between the lenses. (3) Eyeglasses according to claim 2, characterized in that the telescopic part (9) attached to the guide part, i.e. the transverse web (15), is fixed directly to the lens (1 or 2). . (4) A guide part or string part (5) for changing the string length is pivoted on the hinge (4), and the associated telescope part (9) is connected to the rear string end (11). The eyeglasses according to any one of claims 1 to 3, characterized in that: