Firearm maintenance tool

Abstract

A firearm maintenance tool has a body including a rail mount segment and a spindle rotatably mounted to the body and adapted to receive an elongated cleaning rod. The tool may include a square drive element adapted to engage a tool socket. The body may be an elongated body, and the rail segment may extend the length of the body. The body may be an elongated body defining a body axis, and the spindle may extend perpendicularly from the body along a spindle axis perpendicular to the body axis. The body may define a first aperture receiving the spindle, and a second aperture receiving a retention element operably securing the spindle to the body. The first and second apertures may be perpendicular to each other.

Claims

1. A firearm maintenance tool comprising: a body including a rail mount segment; and a spindle rotatably mounted to the body and adapted to receive an elongated cleaning rod; wherein the body defines a first aperture receiving the spindle, and a second aperture receiving a retention element operably securing the spindle to the body, preventing extraction of the spindle from the body, and enabling rotation of the spindle with respect to the body; and wherein the body is an elongated body defining a longitudinal body axis and the spindle extends perpendicularly from the body along a longitudinal spindle axis perpendicular to the longitudinal body axis.

2. The firearm maintenance tool of claim 1 wherein the tool includes a square drive element adapted to engage a tool socket.

3. The firearm maintenance tool of claim 1 wherein the body is an elongated body and wherein the rail segment extends the length of the body.

4. The firearm maintenance tool of claim 1 wherein the first and second apertures are perpendicular to each other.

5. The firearm maintenance tool of claim 1 wherein the body defines a retention element bore closely receiving and preventing the relative rotation of a retention element, the retention element being an elongated body having a first end including a protruding tool drive portion and an opposed second end having a retention facility engaging the spindle to prevent extraction of the spindle from the body.

6. The firearm maintenance tool of claim 5 wherein the retention facility is a fork defining a gap receiving a neck portion of the spindle, and having a face abutting a flange portion of the spindle.

7. The firearm maintenance tool of claim 5 wherein the tool drive portion is a square element adapted to engage a standard socket tool.

8. The firearm maintenance tool of claim 1 including a firearm handgrip removably mounted to the rail.

9. A firearm maintenance tool comprising: an elongated body defining a longitudinal body axis and including a rail mount segment; the body defining a spindle bore perpendicular to the longitudinal body axis; a spindle rotatably received in the spindle bore and adapted to receive an elongated cleaning rod; the body defining a retention element bore parallel to the body axis and communicating with the spindle bore; an elongated retention element received in the retention element bore; and the retention element having a first end including a tool interface element and an opposed send end having a retention facility engaging the spindle and operable to prevent extraction of the spindle from the body, the retention facility being adapted to enable rotation of the spindle with respect to the body.

10. The firearm maintenance tool of claim 9 wherein the tool interface element is a square drive element adapted to engage a tool socket.

11. The firearm maintenance tool of claim 9 wherein the rail segment extends the length of the body.

12. The firearm maintenance tool of claim 9 wherein the retention facility is a fork defining a gap receiving a neck portion of the spindle, and having a face abutting a flange portion of the spindle.

13. The firearm maintenance tool of claim 9 including a firearm handgrip removably mounted to the rail.

14. The firearm maintenance tool of claim 9 wherein the spindle and the retention element are formed of steel, and the body is formed of a material less dense than steel.

15. A firearm maintenance tool comprising: a body including a rail mount segment; a spindle rotatably mounted to the body and adapted to receive an elongated cleaning rod; wherein the body defines a retention element bore closely receiving and preventing the relative rotation of a retention element, the retention element being an elongated body having a first end including a protruding tool drive portion and an opposed second end having a retention facility engaging the spindle to prevent extraction of the spindle from the body; and wherein the retention facility is a fork defining a gap receiving a neck portion of the spindle, and having a face abutting a flange portion of the spindle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a right side view of the current embodiment of the firearm maintenance tool constructed in accordance with the principles of the present invention in use clearing a bore obstruction from a rifle.

(2) FIG. 2 is a bottom perspective view of the current embodiment of the firearm maintenance tool of FIG. 1.

(3) FIG. 2A is a bottom perspective view of the current embodiment of handle of the firearm maintenance tool of FIG. 1.

(4) FIG. 3 is a top perspective view of the current embodiment of the firearm maintenance tool of FIG. 1.

(5) FIG. 4 is an exploded view of the current embodiment of the firearm maintenance tool of FIG. 1.

(6) FIG. 5 is a side view of the current embodiment of the firearm maintenance tool of FIG. 1.

(7) FIG. 6 is a side sectional fragmentary view of the current embodiment of the firearm maintenance tool of FIG. 1.

(8) FIG. 7 is a side view of the current embodiment of the rotating spindle of the firearm maintenance tool of FIG. 1.

(9) FIG. 8 is a top perspective view of the current embodiment of the firearm maintenance tool of FIG. 1 in use tightening a hex bolt on a rifle.

(10) The same reference numerals refer to the same parts throughout the various figures.

DESCRIPTION OF THE CURRENT EMBODIMENT

(11) An embodiment of the firearm maintenance tool of the present invention is shown and generally designated by the reference numeral 10.

(12) FIGS. 1-7 illustrate the improved firearm maintenance tool 10 of the present invention. More particularly, in FIG. 1 the firearm maintenance tool is depicted in an assembled state clearing a bore obstruction from a rifle 74. The rifle has an upper receiver 76, a lower receiver 78, an upper Picatinny rail 80, a lower Picatinny rail 82, a right side 90, and a rear 92. During normal operation of the rifle, a vertical handgrip 68 having a top 70 and a bottom 72 is attached by a rail clamp 74 to the lower Picatinny rail to provide a forward grip position on the rifle for a user.

(13) The firearm maintenance tool has an elongated handle body 12 having a top 14, bottom 16, front 18, and rear 20. The bottom includes a Picatinny rail segment 24 that extends the length of the body. The embodiment comprising the rod handle body is comprised primarily of a section of accessory rail that is commonly known as MIL-STD-1913 or Picatinny Rail, but could also be substituted by other embodiments including, but not limited to the following commonly known accessory rail types: STANAG 2324 Rail, STANAG 4694 Rail, NATO Accessory Rail, Weaver Rail, Scope Rail, Tactical Rail, Modular Accessory Rail, Accessory Rail, Rail Interface System (RIS), Rail Accessory System (RAS), KeyMod, KeySlot, M-LOK and ARC LOK. It is conceivable that a substitute rail could be adapted or fashioned that does not fall into the categories listed above, but utilizes the same principles of function. The handle has a central bore 22 located midway between the front and rear that penetrates the top and bottom of the handle and defines a spindle axis 94. The handle has a roll pin bore 26 located midway between the front and the central bore that penetrates the top and bottom of the handle. The handle has a longitudinal front bore 106 that defines a body axis 96 and communicates with both the roll pin bore and the central bore. The roll pin bore and the central bore are parallel to one another, and the roll pin bore and central bore are perpendicular to the front bore. The spindle axis is perpendicular to the body axis.

(14) The central bore 22 of the handle 12 rotatably receives the top 48 of a rotating spindle 46. The top of the rotating spindle includes a top cylindrical flange 60 and a bottom cylindrical flange 58. The cylindrical flanges define a groove 62 between them to create a narrower neck portion of the spindle. An elongated shaft 98 is connected to the bottom cylindrical flange by a rounded shoulder portion 56. The bottom 50 of the elongated shaft defines a central bore 52 including an internal threaded portion 54. The internal threaded portion is adapted to threadedly interface with a cleaning rod connection sleeve 108.

(15) The front bore 106 of the handle 12 receives the rear 32 of a tool drive spindle 28. The rear of the tool drive spindle has a fork with two prongs 36 having upper faces 100 and lower faces 102 that define a gap or slot 38 between them. The fork prongs act as a retention facility by receiving the neck portion of the rotating spindle 46 defined by groove 62 within the slot such that the upper and lower faces abut the cylindrical flanges 58, 60 of the rotating spindle 46. The close fit between the upper and lower faces and the cylindrical flanges enables linear force to be transferred from the handle to the cleaning rod attached to the rotating spindle to enable the forceful removal of bore obstructions from the rifle 74. The fork prongs also act as a retention facility that engages the rotating spindle to prevent the extraction of the rotating spindle from the handle while permitting the spindle to rotate freely within the central bore 22.

(16) The front 30 of the tool drive spindle has a square element portion 40 that is adapted to engage a standard socket tool 64 of any common size. An intermediate cylindrical portion 34 connects the square element portion to the rear prongs 36. The cylindrical portion defines a roll pin bore 42. After the firearm maintenance tool 10 is assembled with the roll pin bore 26 and the handle axially registered with the roll pin bore 42 in the tool drive spindle, a roll pin 44 is inserted through both roll pin bores and acts as a retention element to secure the tool drive spindle against both longitudinal and rotational movement with respect to the handle.

(17) To clear a bore obstruction from a rifle 74 using the firearm maintenance tool 10, the sectional cleaning rod 66 are assembled into a single length of cleaning rod, and are then subsequently joined to the shaft 98 of the rotating spindle 46 by the cleaning rod connection sleeve 108. A hand 88 of the user can directly grip the handle 12 of the firearm maintenance tool 10. Alternatively, if present, an optional vertical handgrip 68 can be detached from the lower Picatinny rail 82 of the rifle 74 and attached to the Picatinny rail segment 24 on the bottom 16 of the handle 12 by the rail clamp 74. A hand of the user can then grip the vertical handgrip instead of the handle 12 if doing so is more comfortable. The rear 92 of the upper receiver 76 is disengaged from the lower receiver 78 to expose the rifle's bore (not visible). The assembled cleaning rod can then be forcefully inserted through the length of the bore to clear any obstructions. The rotating spindle 46 rotates with respect to the handle so an optional brush attached to the end of the assembled cleaning rod can rotate as it follows the rifled bore down the barrel 104.

(18) In the current embodiment, the handle 12 can be a unitary component made of, but not limited to: aluminum (hard coat anodized), stainless steel, steel, iron, polymers, carbon fiber or any material suitable for the application, and the tool drive spindle 28 and the rotating spindle 46 can be unitary components made of any suitable metal. The handle can be 0.750 inches tall and 2.15 inches long. The central bore 22 can have a diameter of 0.386 inch. The roll pin bore 26 can have a diameter of 0.125 inch. The front bore 106 can have a diameter of 0.377 inch.

(19) In the current embodiment, the shoulder 56 of the rotating spindle 46 can have a radius of 0.10. The groove 62 can be 0.21 inch wide and can result in a neck thickness of 0.22 inch. The bottom and top cylindrical flanges 58, 60 can each have a thickness of 0.135 inch and a diameter of 0.375 inch. The rotating spindle can have a total length of 2.5 inches. The central bore 52 can have a diameter of 0.1968 inch, a total depth of 0.78 inch, and a smooth portion adjacent to the bottom 50 below the internal threaded portion 54 with a length of 0.225 inch. The internal threaded portion can have a pitch of 8-32 UNF, 8-36 UNF-2B, or any other suitable thread size.

(20) In the current embodiment, the front square portion 40 of the tool drive spindle 28 can have a length of 0.50 inch and has a square cross-section that can be 0.375 inch per side. The roll pin bore 42 can be located 0.4850 inch behind the front square portion and can have a diameter of 0.129 inch. The fork prongs 36 can have a length of 0.452 inch, and the slot 38 between them can have a width of 0.225 inch and a radius of 0.25. The fork prongs can have a thickness of 0.2 inch. The tool drive spindle can have a total length of 1.830 inch.

(21) FIG. 8 illustrates the improved firearm maintenance tool 10. More particularly, the firearm maintenance tool 10 is shown in use as a wrench to adjust the tightness of a hex bolt 86 used to releasably secure an optical sight 84 to the upper Picatinny rail 80 of the rifle 74. The firearm maintenance tool can be used to tighten any compatible fastener to secure any desired accessory to a Picatinny rail. The cleaning rod connection sleeve 108 and sectional cleaning rod 66 have been detached from the rotating spindle 46 to make the firearm maintenance tool 10 as compact as possible. The optional vertical handgrip 68 is attached to provide the hand 88 of the user with as much leverage as possible to turn the tool drive spindle 28. A standard socket tool 64 adapted to fit the hex bolt 86 is releasably attached to the square portion 40 of the tool drive spindle.

(22) While a current embodiment of a firearm maintenance tool has been described in detail, it should be apparent that modifications and variations thereto are possible, all of which fall within the true spirit and scope of the invention. With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

(23) Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.