JPS5916719Y2 - Night vision device mounting structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a night vision device used for night surveillance and boiling water to firearms.

The installation of night vision devices used in firearms requires a reliable fixing method that maintains sufficient aiming performance against vibrations and shocks caused by shooting, is easy to attach and detach, and has reproducible aiming performance when repeatedly attached and detached. shall be.

A conventional mounting structure of this type is shown in FIG.

Figure A is a sectional side view of the main part of the mounting structure, and Figure B is a plan view of the gun-side mount when the night vision device is removed from the gun.

A dovetail 2 is fixed to the night vision device bracket 1 with screws, etc., and two knob screws 3 are attached via a spring 4.
is attached to the night vision device bracket 1.

The knob screw 3 is divided into two stages to prevent it from falling off.

Dovetail groove 5 has two female threads 6, gun side bracket 7
It is welded to the dovetail 2 and serves to fix the position.

Attachment and detachment of the gun and night vision device is done by sliding between dovetail 2 and dovetail groove 5, and when installing, after fitting dovetail 2 and dovetail groove 5, tighten with knob screw 3 to connect night vision device bracket 1. The gun side bracket 7 is fixed.

However, in this conventional type, since the dovetail 2 and the dovetail groove 5 are tightened with the thumb screw 3, there is a slight gap 9 on the slope of the dovetail.
Although it was possible to maintain aiming performance during shooting, problems were likely to occur in reproducibility when attaching and detaching.

That is, in this case, the fixing accuracy of the night vision device bracket 1 to the gun side bracket 7 depends more on the tightening of the knob screw 3 than on the dovetail 2 and the dovetail groove 5, so the contact surface between the dovetail 2 and the dovetail groove 5 If there is a gap, the fixing position will change each time it is installed.

Also, it was necessary to pay attention to the compatibility of the dimensional accuracy of the two female screws 6 and the two thumb screws 3.

The purpose of the present invention is to provide a mechanism that improves the reproducibility of aiming performance when a night vision device is repeatedly attached and detached, and improves compatibility.

In order to achieve the above object, the mounting structure according to the present invention is such that a dovetail fixed to the night vision device bracket and a dovetail groove fixed to the gun side bracket and having a groove are fitted together, and are tightened by a knob screw, and the dovetail groove is fixed to the gun side bracket and has a groove. The tip of the dovetail is abutted against the groove (1) and fixed in contact with the slope between the dovetail and the groove.

The present invention will now be described in detail with reference to the drawings.

FIG. 2A is a sectional side view of the main part of the mount, and FIG. 2B is a plan view of the attachment side on the gun side when the night vision device is removed from the gun.

A dovetail 2 is screwed to the night vision device bracket 1, and two thumb screws 3 are attached to the night vision device bracket 1 via a spring 4.

The knob screw 3 is divided into two stages to prevent it from falling off.

The dovetail groove 5 has two grooves 8 in two mutually perpendicular directions, and is welded to the gun side bracket 7.

As shown in Figure 2B, these two pieces and slot 8 are oval and formed at right angles, so tightening the first thumb screw fixes the fixing position in one direction, and tightening the other thumb screw. By tightening, the position perpendicular to this will be fixed.

The gun and night vision device are attached and detached by sliding them between dovetail 2 and dovetail groove 5, and tightened by tightening knob screw 3. The tip of thumb screw 3 hits V groove 8 of dovetail groove 5, and the two are separated by force. is applied, and the dovetail 2 and the slope 9 of the dovetail groove 5 come into contact and are fixed.

Therefore, since the dovetail 2 and the dovetail groove 5 are always in close contact with each other, the fixed position is kept constant, and the drawbacks of the conventional method are eliminated.

As described above, according to the present invention, the reproducibility of the aiming performance when the night vision device is repeatedly attached and detached is significantly improved, and the compatibility between the attachments is also improved, and the effects are significant.

[Brief explanation of the drawing]

Figure 1 shows a conventional mount, Figure 1A is a cross-sectional view of the mount, Figure 1B is a plan view of the mount on the gun side when the night vision device is removed from the gun, and Figure 2 is a sectional view of the mount. Figure A shows the inventive fixture.
is a cross-sectional view of the attachment, and Figure B is a plan view of the attachment on the gun side when the night vision device is removed from the gun. In each figure, 1... night vision device bracket, 2
...Ant, 3...Knob screw, 4...
...Spring, 5... Dovetail, 6...
...Dovetail groove female thread, 7...Gun side bracket, 8...Dovetail groove, 9...
・Slope portion, 10... Each shows a stopper.

Claims (1)

[Scope of utility model registration request] A dovetail fixed to the night vision device bracket, and two dovetails fixed to the gun side bracket, the longitudinal directions of which are approximately perpendicular to each other.
A dovetail groove having V grooves is tightened and fitted with a thumb screw, so that the tip of the thumb screw is butted against the groove and the two are fixed in contact on the slope between the dovetail and the dovetail groove. night vision device mounting structure.