TELESCOPIC SIGHT MOUNT

Abstract

A sight mount for securing a telescopic sight to a mounting rail on top of a shell rejection mechanism of a rifle includes a bracket formed of thermoplastics and comprising a plurality of first threaded holes, a plurality of second threaded holes perpendicular to and offset with respect to the first threaded holes, a lengthwise bottom recess distal a top of the bracket and being slidably mounted to the mounting rail, and a lengthwise groove in the recess being proximate to the top of the bracket; a plurality of fasteners for securing the bracket to the telescopic sight by driving through the first threaded holes into the telescopic sight; and a plurality of fastening assemblies for securing the bracket to the mounting rail by driving through the second threaded holes.

Description

BACKGROUND OF THE INVENTION

1. Field of Invention

The invention relates to rifle sight mounts and more particularly to an improved sight mount for securing a telescopic sight to a mounting rail on top of a shell rejection mechanism of a rifle.

2. Description of Related Art

A great number of patents about telescopic sight mounts are disclosed. For example, U.S. Pat. No. 4,021,954 discloses a telescopic sight mount which is characterized by that a bracket secured around a rifle barrel, a sight adapter axially slidably mounted to an upper portion of the bracket, a first tongue member lockingly engaged with a telescopic sight, and a second tongue member lockingly engaged with the bracket.

Thus, continuing improvements of telescopic sight mount are constantly sought.

SUMMARY OF THE INVENTION

It is therefore one object of the invention to provide a sight mount for securing a telescopic sight to a mounting rail on top of a shell rejection mechanism of a rifle, comprising a bracket formed of thermoplastics and comprising a plurality of first threaded holes, a plurality of second threaded holes perpendicular to and offset with respect to the first threaded holes, a lengthwise bottom recess distal a top of the bracket and being slidably mounted to the mounting rail, and a lengthwise groove in the recess being proximate to the top of the bracket; a plurality of fasteners for securing the bracket to the telescopic sight by driving through the first threaded holes into the telescopic sight; and a plurality of fastening assemblies for securing the bracket to the mounting rail by driving through the second threaded holes.

The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a sight mount according to a first preferred embodiment of the invention;

FIG. 2 is an exploded view of the sight mount to be assembled with a telescopic sight;

FIG. 3 is a perspective view of the sight mount mounted on mounting rails on top of a rifle barrel and the telescopic sight mounted on the sight mount;

FIG. 4 is an exploded view of a sight mount according to a second preferred embodiment of the invention; and

FIG. 5 is a perspective view of the sight mount of FIG. 4 mounted on mounting rails on top of a rifle barrel and the telescopic sight mounted on the sight mount.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 3, a telescopic sight mount 1 in accordance with a first preferred embodiment of the invention comprises the following components as discussed in detail below.

A bracket 2 is made of thermoplastics (i.e., having a limited compressibility) and is an elongated block having a cross-section of rectangle. The bracket 2 comprises two spaced, vertical first threaded holes 22, two spaced, horizontal second threaded holes 23 offset with respect to the first threaded holes 22 (i.e., not intersecting), a lengthwise recess 20 on bottom, the recess 20 having two opposite dovetailed groove sides, and a lengthwise groove 21 oriented vertically in the recess 20, the groove 21 having a rectangular section in each of vertical and horizontal directions. The second threaded hole 23 is discontinuous because it is disrupted by a joining portion of the groove 21 and the recess 20 (see FIG. 1).

An individual may place the bracket 2 on a mounting rail 40 projecting out of top of a shell rejection mechanism 41 of a rifle 4 by sliding the recess 20 along the mounting rail 40. The mounting rail 40 has two tongue sides. Hence, the recess 20 and the mounting rail 40 are engaged together in a tongue and dovetail fashion.

Four fastening assemblies in which each of a first group of two fastening assemblies is a hex socket screw 31 adapted to drive through the second threaded holes 23 into two threaded holes 50 on bottom of a telescopic sight 5 for mounting the telescopic sight 5 on top of the bracket 2. Each of a second group of two fastening assemblies comprises a hex socket screw 31 adapted to drive through the first threaded hole 22 (over the mounting rail 40) and a nut 32 at the other side of the bracket 2 by means of a hex wrench. An individual may put a washer 33 and a wing nut 34 on a portion of the hex socket screw 31 projecting out of the other side of the bracket 2, and then hold and turn two opposite wings 340 of the wing nut 34 to clampingly fasten the bracket 2 on the mounting rail 40.

Referring to FIGS. 4 and 5, a telescopic sight mount in accordance with a second preferred embodiment of the invention is shown. The characteristics of the second preferred embodiment are detailed below.

The bracket 2 is separated into a large first part 24 and a small mating second part 25. On the other side of the first part 24 there are provided with two circular cavities 26 each at the mouth of the second threaded hole 23. The cavity 26 is shaped to receive both the nut 32 and the washer 33 so as to form a flat surface on the other side of the first part 24.

While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.

Claims

1. A sight mount for securing a telescopic sight to a mounting rail on top of a shell rejection mechanism of a rifle, comprising:

a bracket formed of thermoplastics and comprising a plurality of first threaded holes, a plurality of second threaded holes perpendicular to and offset with respect to the first threaded holes, a lengthwise bottom recess distal a top of the bracket and being slidably mounted to the mounting rail, and a lengthwise groove in the recess being proximate to the top of the bracket;

a plurality of fasteners for securing the bracket to the telescopic sight by driving through the first threaded holes into the telescopic sight; and

a plurality of fastening assemblies for securing the bracket to the mounting rail by driving through the second threaded holes.

2. The sight mount of claim 1, wherein the second threaded holes are discontinuous

when passing a joining portion of the groove and the recess.