U.S. patent application number 12/657280 was filed with the patent office on 2011-07-14 for sight for a firearm.
Invention is credited to Gaston Glock.
Application Number | 20110167706 12/657280 |
Document ID | / |
Family ID | 44257387 |
Filed Date | 2011-07-14 |
United States Patent
Application |
20110167706 |
Kind Code |
A1 |
Glock; Gaston |
July 14, 2011 |
Sight for a firearm
Abstract
The invention relates to a sight which is fastened to a
structural component of a firearm, preferably the carriage of a
pistol. The invention is characterized in that the sight (4) has
parallel to or in alignment with the axis of its base an internal
thread and is secured by means of a screw (5) which can be screwed
in from the interior of the structural component of the firearm. It
is preferably provided that in the mounted state the leg (7) of the
sight (4) protrudes into a through-opening (2) of the structural
component of the firearm.
Inventors: |
Glock; Gaston; (Velden,
AT) |
Family ID: |
44257387 |
Appl. No.: |
12/657280 |
Filed: |
January 14, 2010 |
Current U.S.
Class: |
42/111 |
Current CPC
Class: |
F41G 1/26 20130101; F41G
1/10 20130101 |
Class at
Publication: |
42/111 |
International
Class: |
F41G 1/00 20060101
F41G001/00 |
Claims
1. Sight fastened to a structural component of a firearm,
preferably a pistol, wherein the sight (4) has parallel to or in
alignment with the axis of its legs an internal thread and is
secured by a screw (5) to be screwed in from the interior of the
structural component of the firearm, wherein, in the mounted state,
the leg (7) of the sight (4) projects into a through-opening (2) of
the structural component of the firearm, wherein the screw (5)
protrudes beyond the outer surface of the structural component or
the carriage (1) and protrudes in the direction of the axis of the
screw (5) at least to 60% of the height of the sight into the
sight.
2. The sight according to claim 1, wherein it protrudes at least to
90% of the height of the sight into the sight.
3. The sight according to claim 1, wherein the structural component
is the carriage (1) of the firearm.
4. The sight according to claim 1, wherein the sight has a
through-opening for receiving the screw (5).
5. The sight according to claim 1, wherein it consists of an inner
body (15) and an outer sleeve (6), wherein the inner body has a leg
(7) which can be inserted into the through-opening (2) of the
structural component.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a sight which is mounted at a
carriage or another structural component of a firearm, preferably a
pistol.
[0003] There are several configurations and types of fastening
sights; for example, the sights may be of metal or synthetic
material; they can be made of one piece with the carriage or a
compatible component, for example; they may be made in one piece
with the carriage or the structural component compatible therewith
(in the following, the carriage is always referred to only as the
carriage because of the easier readability) or are screwed to the
carriage or they can also be connected to the carriage through
frictional engagement.
[0004] For various reasons, sites of synthetic material have been
found useful which have a leg by means of which they are inserted
into a blind-endhole or through-hole of the carriage and are
secured in this position by frictional engagement. These sites are
simple and can be easily replaced without requiring a difficult
assembly.
[0005] A sight of this type is known from US 217 717. In this
reference, it is provided that the metal sight is at its hole
provided with an external thread and can be screwed from below
(inside) through a through-hole. The alignment and especially the
maintenance of the alignment are completely unsatisfactory.
[0006] It is known from U.S. Pat. No. 5,802,757 to insert plastic
sight with two cylindrical legs into blind-endbores and to anchor
the legs by screwing an expanding screw by frictional engagement.
The position results by coincidence from the equilibrium of forces;
the mechanical stability is poor.
[0007] 2. Description of the Related Art
[0008] It is known from DE 10 2005 009 862, DE 199 10 643, and also
U.S. Pat. No. 5,404,667 to provide a purely elastic fastening which
of course is also not providing any adjustment and which is
mechanically susceptible to trouble.
[0009] U.S. Pat. No. 5,202,542 discloses the fastening through
plastic deformation of the leg of the sight; which requires a weak
and imprecise fastening; and which requires special tools and a
press head which is adapted to the leg.
[0010] It has now been found that during various applications in
extremely rough operation of these plastic sights, these plastic
sights are separated from their anchoring positions and can be
damaged even though they are of synthetic material having excellent
mechanical properties.
SUMMARY OF THE INVENTION
[0011] It is the object of the invention to provide a sight, or the
fastening for a sight, particularly of synthetic material in which
the seat as well as the mechanical strength are further
increased.
[0012] In accordance with the invention, the objects are met by
providing the sight parallel or in alignment with the axis of its
base with an internal thread and to tighten or securing the sight
by means of a screw which can be screwed in from the interior of
the carriage. In this manner, the seat of the sight in the carriage
is significantly improved wherein, when suitable screws are used,
the necessity for using a tool by changing the sight can be kept
low; in this manner, knurled head screws or screws with a hexagonal
head, also provided with a slot, are accessible for any type of
tool.
[0013] In a further development, the screw protrudes in the mounted
state beyond the outer surface of the carriage so as to fill out
the body of the sight to the extent possible completely, at least,
however, by 60% of the height of the sight. In this manner, the
mechanical fastening of the sight is significantly improved because
any type of mechanical load, particularly impacts and contacts are
transmitted directly from the sight to the metal screw. The sight
itself can only be subjected locally to pressure which is a load to
which the synthetic material is to a higher degree resistant.
[0014] While specific embodiments of the invention have been shown
and described in detail to illustrate the inventive principles, it
will be understood that the invention may be embodied otherwise
without departing from such principles.
BRIEF DESCRIPTION OF THE DRAWING
[0015] In the drawing:
[0016] FIG. 1 shows an exploded sketch;
[0017] FIG. 2 shows the situation in the assembled state with a
partially torn-away carriage, and
[0018] FIG. 3 shows the detail III on a larger scale.
DETAILED DESCRIPTION OF THE INVENTION
[0019] FIG. 1 shows a carriage 1 of a firearm in whose front region
is located a through-opening 2 which is oblong in the cross-section
thereof. Along the axis 3 of this opening, displaced upwardly or
downwardly in the manner of an explosion, is an inventive sight 4
and a corresponding fastening screw 5.
[0020] FIG. 2 shows the assembled state, wherein, for a better
illustration, a part of the carriage 1 is broken away.
[0021] FIG. 3 shows detail III on a larger scale. It can be seen
that the sight 4 is composed of an inner body 15 and an outer
sleeve 6, wherein the inner body forms a leg 7 which can be
inserted rapidly and tightly into the through-opening 2. Parallel
to the axis 3, preferably in alignment with the axis 3 of the
through-opening (FIG. 1), the inner body 15 has at its leg 7 and
past the leg 7 an internal thread 8. In the illustrated embodiment,
the inner body 15 of the sight 4 also forms a sight point 9 which
facilitates aiming with the firearm.
[0022] The screw 5 has an external thread which matches the
internal thread 8. When the screw is screwed into the sight 4, the
screw pulls the sight 4 with its surface 10 against the outer
surface of the carriage 1 and rests in turn with the surface 11 of
its head 12 on the sight of the thread against the inner surface of
the carriage 1, so that the sight 4 securely rests against the
firearm.
[0023] In the illustrated embodiment, the shaft 13 of the screw 5
has such a length that it extends practically through the entire
sight 4. The sight 4 has a matching through-opening and is seated
essentially like a nut on the screw 5. For forming a
through-opening, the outer sight body 6 also has a corresponding
recess 14.
[0024] From the principal construction illustrated in FIG. 3, it
can be seen that any mechanical load acting on the sight 4
essentially only leads to a compressive force acting on the sight
while the bending forces resulting therefrom are absorbed by the
screw 5. The illustrated screw has a head 12 which, in the
illustrated embodiment, is constructed as a hexagonal head, of
course, it may also be a knurled head if a manual screwing or
separating are intended; and it is possible, in addition to
constructing the head as a hexagonal head, to provide the head 12
additionally with a slot in order to be able to act on the head by
means of a screw driver for slotted screws; instead of a slot it is
also possible to provide a cross-shaped indentation, or a recess
for a socket head cap, or a combination of several or all of these
types of fastening members.
[0025] Suitable materials used for the sight are the materials
which are already used in the field of plastic sights, particularly
thermoplastic materials, such as polyamide (PA), polyoxymethylene
(POM), polypropylene (PP), polycarbonate (PC), but also various
duroplastic materials. The screw may be of steel, particularly
stainless steel, so called "Nirosta", or another metal,
particularly an aluminum alloy or also brass. In those cases in
which the fastening of the sight is of major significance, it is
also possible to use high-strength plastic material, possibly
fiber-reinforced.
[0026] The invention is not limited to the illustrated embodiment;
rather the invention can be modified in various ways. For example,
the sight according to the invention can be used in any weapon in
which the provision of a through-hole in an analogy to the
through-opening is possible and in which the area in the interior
of the carriage or other weapon part is accessible for mounting or
dismounting the screw. The through-opening can have a cross-section
which is different from the illustrated oblong cross-section; the
cross-section of the oblong hole should deviate from the circular
cross-section because of the adjustment of the sight about the axis
3, however, other adjusting elements are conceivable.
[0027] Of course, the sight 4 can be constructed as a single piece;
in that case, the optical marking may be a color application or an
inserted blade; the illustrated embodiment is advantageous because
of its stability. It is not necessary to provide the shaft 13 of
the screw 5 nor the through-opening or the blind-end bore of the
sight, over the entire length with a thread; because of that
property of the screw of observing the bending loads and the
tensile stresses of the sight, a tight fit between the screw and
the sight as much as possible over the entire length of the shaft
of the screw should be observed; for reasons of manufacture, an
embodiment with a continuous configuration and provided with a
thread is advantageous with respect to costs.
[0028] While specific embodiments of the invention have been shown
and described in detail to illustrate the inventive principles, it
will be understood that the invention may be embodied otherwise
without departing from such principles.
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