KR19980075258A - Front and rear feeder fixing device of night vision - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a night vision goggle, and more particularly, to an apparatus for fixing a position of a front and rear transfer part for adjusting a distance between an eye and an alternative lens.

I. The technical problem that the invention is trying to solve.

It is an object of the present invention to provide a front and rear conveying unit fixing device of the night vision goggles to ensure a stable field of view by preventing natural loosening of the front and rear adjustment screws.

All. Summary of the Solution of the Invention.

The present invention is a night vision goggles, the handle groove of the front and rear conveying portion is provided with an adjustment knob formed with a plurality of grooves centered on the central shaft hole on one side, and the spring inside the handle groove of the front and rear transfer portion in contact with the adjustment handle The combined spherical stop is mounted, and when the adjustment knob is rotated, the stop is inserted into the stop groove formed in the adjustment knob, and the rotation of the adjustment knob is fixed.

la. Important use of the invention.

The present invention is used to fix the position after adjusting the distance between the alternative lens of the night vision and the user's eyes.

Description

Front and rear feeder fixing device of night vision

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a night vision goggle, and more particularly, to an apparatus for fixing a position of a front and rear transfer part for adjusting a distance between an eye and an alternative lens.

Typically, the night vision goggles used for military purposes, such as night patrol, combat, and the like is equipped with a main body equipped with an alternative lens and an objective lens, the front and rear transfer unit mounted on the upper portion of the main body, and combined with the main body to cover the user's head It consists of a mounting base.

In order to secure an optimal field of view when observing using a night vision goggle, the distance between the alternative lens and the user's eye must be properly adjusted. The above-mentioned front and rear transfer unit performs such a function. 1 and 2, the conventional front and rear conveying unit is mounted to slide the guide portion 12 protruding in the crown shape on the upper body 10 of the night vision goggles. In addition, the front and rear conveying portion 20 is provided with an adjustment knob 30, inside the front and rear conveying portion, the front and rear adjustment screw 40 connected to the guide portion of the main body is coupled with the adjustment knob 22, the adjustment knob Turn to adjust the front and rear conveying unit 20 to slide the front and rear of the main body 10. At this time, the rotational movement of the front and rear adjustment screw 40 is changed to the front and rear movement of the main body 10 (relative movement of the front and rear conveying unit). That is, the main body on which the alternative lens is mounted moves relatively so that the distance between the user's eye and the alternative lens is adjusted. An auxiliary plate 14 is installed at one end of the front and rear transfer part so that the front and rear transfer part can no longer move.

On the other hand, the front and rear adjustment screw 40 uses a high efficiency screw with a large lead in order to increase the moving speed. The screw of the high efficiency as described above has the advantage that the front and rear movement of the main body proceeds rapidly even if the adjustment knob 22 is turned a little, but it operates easily even in the external minute shaking or impact, so that the distance between the alternative lens and the eye To change. (For example, a commercially available night vision adjusting screw has a lead of 3.18 mm and an efficiency of 0.72, which is higher than 0.5, which is a self-supporting efficiency that does not self-release, and loosens itself due to external shock or shaking.) There was a problem that it was difficult to secure a clear and stable field of view, causing the inconvenience of frequently re-adjusting the distance between the alternative lens and the eye with the adjustment knob.

In order to solve the above problems, an object of the present invention is to provide a front and rear transfer unit fixing device of the night vision goggles to ensure a stable field of view by preventing natural loosening of the front and rear adjustment screw.

In order to achieve the above object, the present invention provides a main body equipped with an alternative lens and an objective lens, a front and rear transfer part mounted to slide on an upper portion of the main body and having a handle groove formed on an upper surface thereof, and coupled to the main body to a user's head. In a night vision goggle composed of a mounting cover to be covered, the handle groove of the front and rear conveying portion is provided with an adjusting knob formed with a plurality of grooves centered on a central shaft hole on one surface thereof, and the handle groove inside the front and rear conveying portion which is in contact with the adjusting knob. It is equipped with a spring-shaped spherical stop, the rotation of the adjustment knob is inserted into the stop groove formed in the adjustment knob, characterized in that the rotation of the adjustment knob is fixed.

1 is a perspective view showing the top of a conventional night vision

Figure 2 is a cross-sectional view showing the front and rear conveying portion of the night vision goggles according to a conventional embodiment,

3 is a perspective view of an adjustment knob according to a preferred embodiment of the present invention;

Figure 4 (a) and (b) is a partial cross-sectional view showing an operating state of the front and rear transfer unit fixing device according to a preferred embodiment of the present invention,

Explanation of symbols for the main parts of the drawings

30: adjustment knob 34: stop groove

50: stop 53: spring

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The present invention is a device for fixing the front and rear transfer unit for adjusting the distance between the alternative lens mounted on the night vision goggles and the user's eyes in a night vision.

The night vision goggles are composed of a main body on which an alternative lens and an objective lens are mounted, a front and rear transfer part mounted on an upper part of the main body, and a mounting stand which is combined with the main body and covers the user's head.

A guide portion having a cross section protruding in a crown shape is formed at an upper portion of the main body, and a guide groove having a cross section is formed in a crown shape at a lower portion of the front and rear conveying portion. The guide groove of the main body is fitted into the guide groove of the front and rear conveying part, and the front and rear conveying part is attached to the main body. In addition, a screw insertion hole with a female thread is formed between the guide portion and the front and rear conveying portion of the main body, and the front and rear adjustment screw is inserted into the screw insertion hole, and the front and rear adjustment screw is rotated by rotating the adjustment knob coupled to one end of the front and rear adjustment screw. The screw rotates, and the front and rear conveying part connected to the front and rear adjustment screw and the female thread is moved back and forth from the upper part of the main body.

At this time, the adjustment knob according to a preferred embodiment of the present invention, as shown in Figure 3, the shaft hole 32 into which one end of the front and rear adjustment screw is inserted, is formed on one side of the shaft hole , A plurality of stop grooves 34 are formed. On the other hand, a handle groove is formed on the upper surface of the front and rear conveying portion so that the adjustment handle is installed, and a stop insertion hole 55 connected to the outside is formed on the inner surface of the handle groove, as shown in FIG. The stop insertion hole has a stop 50 formed integrally with the separation prevention step 52 at the bottom thereof, and is supported by a screw 60 coupled with the spring 53 coupled with the separation prevention step from the outside. The spring 53 maintains a proper tension force enough to rotate even if the adjustment knob by hand, but enough to stop the stop function.

When the adjustment knob 30 is inserted into the handle groove formed in the front and rear conveying portion, and one end of the front and rear adjustment screw 40 is inserted into the shaft hole 32 of the adjustment handle, the stop 50 of the inner side of the handle groove is Press in on the side of the adjustment knob. When the adjustment knob 30 is rotated, the stop 50 is inserted into the stop groove 34 of the adjustment knob as shown in (b) of FIG. 4 by the tension force of the spring 53. In this case, the stop 50 Due to the rotation of the adjustment knob 30 is fixed, and the front and rear adjustment screw 40 is also fixed so that the front and rear transfer unit no longer moves back and forth. Therefore, the distance between the alternative lens and the user's eyes is fixed to ensure a stable field of view, and can maintain a fixed position without the need to readjust the adjustment knob even if the user moves.

As described above, the front and rear transport unit fixing device of the night vision goggles according to the embodiment of the present invention has an effect that can be used without the inconvenience of re-adjusting after initially setting the adjustment knob to the desired position.

Claims (3)

In the night vision goggles consisting of a main body equipped with an alternative lens and an objective lens, a front and rear conveying part mounted on the upper surface of the main body and slidingly mounted on the upper surface of the main body, and a mounting unit combined with the main body to cover the user's head, In the handle groove of the front and rear conveying portion, an adjustment knob having a plurality of grooves is formed on one surface of the center shaft hole, and a spherical stop having a spring is coupled to the inside of the handle groove of the front and rear conveying portion which is in contact with the adjusting knob. When the adjustment knob is rotated, the stopper is inserted into the stop groove formed in the adjustment knob so that the rotation of the adjustment knob is fixed. The method of claim 1, Forming a separation prevention step integral to the stop bottom, the front and rear conveying unit fixed device of the night vision goggles, characterized in that does not fall into the handle groove even if the adjustment knob is pulled out. The method of claim 1, Forming a stop insertion hole connected to the outside on the inner surface of the handle groove of the front and rear conveying portion, inserting the stop through the outside, and then the front and rear conveying portion fixing device of the night vision goggles, characterized in that to block the hole with a screw.