The present disclosure generally relates to firearms, and more particularly to bolt handle assemblies for bolt action rifles.
Bolt action rifles generally include a barrel, receiver onto which the barrel is mounted, and a bolt assembly including a cylindrical breech bolt that is axially movable in a receiver for opening and closing the breech. The bolt includes locking lugs at the front end which may be rotatably locked into the rear of the barrel or front of the receiver adjacent the chamber to form a closed locked breech. The bolt may be manually rotated between the locked and unlocked positions while in the closed breech position and also moved axially forward or rearward via a handle that protrudes laterally outwards from the bolt for grasping by a user. The bolt is moved rearward for opening the breech to unload and eject spent cartridge casings from the chamber in the rear of the barrel. A new cartridge may then be inserted manually into the chamber or uploaded automatically from a magazine which is then fed into the chamber by moving the bolt forward to close the breech in preparation for firing the next round.
Bolt handles may sometimes be formed as an integral part of the unitary bolt structure or as a separate part that is mechanically attached to the bolt via a threaded connection or a welded, soldered, or brazed joint. In the former case, the fabrication and machining costs are higher than desired due to the complex configuration of the longitudinally-extending bolt with laterally projecting curved handle, which are both formed from a monolithic piece of metal. In the latter case, threads must be machined on both the handle and bolt socket which similarly increases fabrication costs. In addition, the handle may loosen during use due to the threaded connection or separate at the brazed junction.
An improved bolt handle assembly is desired for a rifle.
A bolt assembly and method for assembling a bolt handle to the bolt is provided. In one exemplary embodiment, the bolt assembly generally includes a bolt handle having a locking aperture and a locking member disposed on the firing pin striker that is engageable with the handle through the aperture. The locking member may be T-shaped in some possible embodiments without limitation and rotatable between unlocked and locked positions. In some embodiments, the locking member may be disposed on a cocking piece attached to the striker. In other embodiments, the locking member and cocking piece may be separate components mounted on the striker.
In one exemplary embodiment, a bolt handle assembly for a rifle includes a bolt having an elongated body defining a longitudinal axis, an internal channel extending between forward and rear ends of the bolt, and a laterally extending slot, a bolt handle including a mounting tang removably inserted through the slot in the bolt and having a locking aperture positioned in the internal channel of the bolt, a firing pin striker slidably disposed in the internal channel of the bolt, and a locking member mounted on the firing pin striker. The locking member has a portion with front end configured and dimensioned for axial insertion through the locking aperture of the bolt handle. The locking member is rotatable and operable to engage the mounting tang of the bolt to releasably secure the bolt handle to the bolt. The locking member is rotatable between a locked position in which the front end of the locking member engages the mounting tang of the bolt handle and the locking member cannot be moved axially in the bolt, and an unlocked position in which the front end of the locking member disengages the mounting tang of the bolt handle and the locking member can be moved axially in the bolt.
In another exemplary embodiment, a bolt handle assembly for a rifle includes a bolt having an elongated body defining a longitudinal axis, an internal channel extending between forward and rear ends of the bolt, and a laterally extending slot, a bolt handle including a mounting tang removably inserted through the slot in the bolt and having a locking aperture positioned in the internal channel of the bolt, the bolt handle having a front side and a rear side, a firing pin striker slidably disposed in the internal channel of the bolt, and a locking member having a generally cylindrical body configured and dimensioned for at least partial insertion into the internal channel of the bolt. The locking member is rotatably disposed in the internal channel of the bolt and includes a locking member including a locking flange engageable with the mounting tang of the bolt handle and being configured for longitudinal axial insertion through the locking aperture of the bolt handle. The locking flange locks the bolt handle to the bolt when the locking member is in a first locked rotational position. The locking flange unlocks the bolt handle from the bolt for removal when the locking member is in a second unlocked rotational position.
In another exemplary embodiment, a bolt handle assembly for a rifle includes a bolt having an elongated body defining a longitudinal axis, an internal channel extending between forward and rear ends of the bolt, and a laterally extending slot, a bolt handle including a mounting tang removably inserted through the slot in the bolt and having a locking aperture positioned in the internal channel of the bolt, the mounting tang having a front side and a rear side, a firing pin striker slidably disposed in the internal channel of the bolt, and a locking member rotatably disposed in the internal channel of the bolt and mounted on the firing pin striker. The locking member includes at least one rear facing abutment surface rotatable into and out of engagement with a forward facing seat on the front side of the mounting tang of the bolt handle. The at least one rear facing abutment surface is operable to lock the bolt handle to the bolt.
An exemplary method for mounting a bolt handle to a bolt action rifle is provided. In one embodiment, the method includes: providing a bolt having an elongated body defining a longitudinal axis, an internal channel extending between forward and rear ends of the bolt configured for receiving a firing pin striker, and a laterally extending slot; laterally inserting a mounting tang of a bolt handle having a locking aperture through the slot in the bolt; axially inserting an end of a locking member through the locking aperture in a first longitudinal direction; rotating the locking member in a first direction; and engaging the end of the locking member with the mounting tang of the bolt handle, wherein the bolt handle cannot be removed from the bolt. In the foregoing and other embodiments, the method further includes rotating the locking member in a second direction; disengaging the end of the locking member with the mounting tang of the bolt handle; and axially withdrawing the end of a locking member through the locking aperture in a second longitudinal direction, wherein the bolt handle can be removed from the bolt. In the foregoing and other embodiments, the locking member is rotated 90 degrees in the first direction and the second direction.
The features of the exemplary embodiments will be described with reference to the following drawings where like elements are labeled similarly, and in which:
Any reference herein to a single figure (e.g.
The features and benefits of the invention are illustrated and described herein by reference to exemplary, embodiments. This description of exemplary embodiments is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the description of embodiments disclosed herein, any reference to direction or orientation is merely intended for convenience of description and is not intended in any way to limit the scope of the present invention. Relative terms such as “lower,” “upper,” “horizontal,” “vertical,”, “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivative thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation. Terms such as “attached,” “affixed,” “connected,” and “interconnected,” refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. Accordingly, the disclosure expressly should not be limited to such exemplary embodiments illustrating some possible non-limiting combination of features that may exist alone or in other combinations of features.
An exemplary embodiment will now be described for convenience with reference and without limitation to bolt action rifle 10 shown in
With additional reference to
Referring to
Referring to
In one embodiment, with additional reference to
With continuing reference to
It will be appreciated that although locking flange 44 may be generally T-shaped with two ears 44a, 44b as shown in
Disposed between the ends of locking member 40 in one embodiment is a cylindrical intermediate portion 46 adjacent locking flange 44 and a diametrically enlarged cylindrical boss portion 48 adjacent the rear flange 42, as shown in
The forward end 47 of locking member 40 may include a socket 41 configured and dimensioned for receiving the rear end 56 of striker 50 therethrough. In some embodiments, socket 41 may extend completely through locking member 40 to form a through passage as shown in
Bolt handle 30 preferably is provided as a separate component that is attachable to bolt 20. Referring to
Referring to
With continuing reference to
Adjacent above and below elongated aperture 33 in some preferred embodiments may be flat recessed seats 36 formed on front side 34a of mounting tang 31 which define seating surfaces for holding locking flange 44 of locking member 40 in position (see
Referring to
With continuing reference to
Cocking piece 100 may be mounted onto striker 50 by any suitable method commonly used in the art including threading, shrink or press fit, etc. In one embodiment, as best shown in
An exemplary method of mounting the bolt handle 30 to bolt 20 of rifle 10 will now be described. In some embodiments, the locking member 40 and cocking piece 100 may first be mounted onto firing pin striker 50 before the striker is inserted into bolt 20.
The bolt assembly method continues by first laterally aligning and then inserting mounting tang 31 of bolt handle 30 completely through handle-receiving slot 21 in bolt 20. When fully seated, as shown in
Next, the firing pin striker 50 assembly is axially aligned with channel 28 in bolt 20. The locking member 40 is rotated and adjusted in position until locking flange 44 is horizontally oriented and positioned as shown in
Next, the firing pin striker 50 assembly is slidably and axially inserted in a forward direction through the open rear end 26 of bolt 20 into the rear portion of channel 28, preferably with spring 52 already positioned on the striker. The horizontal and vertical orientation of locking flange 44 and rear flange 42, respectively as described above is preferably maintained during this insertion step. The striker 50 is fully inserted until locking flange 44 enters and passes forward completely through elongated aperture 33 in bolt handle 30. Locking flange 44 is preferably positioned in front of front side 34a on bolt handle mounting tang 31. Locking flange 44 would still be in the horizontal position shown in
With the striker 50 and locking member 40 in the position described immediately above, the locking member is next rotated 90 degrees in a clockwise direction (viewing the assembly from front end 24 of bolt 20 towards the rear with reference to
It will also be noted that rotating locking flange 44 to the locked position shown in
To rotate the locking flange 44 counterclockwise back to unlocked horizontal position (see
Advantageously, the embodiments of the present disclosure as described herein provide a system and method for releasably attaching the bolt handle to the bolt without the use of mechanical fasteners, threading, welding/soldering, or machining the handle integrally with the bolt. This results in convenience and manufacturing savings.
Bolt 20, bolt handle 30, firing pin striker 50, locking member 40, bolt shroud 200, cocking piece 100, and other components described herein may be made of any suitable materials commonly used for such components, including without limitation steel, aluminum, titanium, other metals and alloys, and non-metals including polymers and composite materials.
While the foregoing description and drawings represent exemplary embodiments of the present disclosure, it will be understood that various additions, modifications and substitutions may be made therein without departing from the spirit and scope and range of equivalents of the accompanying claims. In particular, it will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, sizes, and with other elements, materials, and components, without departing from the spirit or essential characteristics thereof. In addition, numerous variations in the methods/processes described herein may be made within the scope of the present disclosure. One skilled in the art will further appreciate that the embodiments may be used with many modifications of structure, arrangement, proportions, sizes, materials, and components and otherwise, used in the practice of the disclosure, which are particularly adapted to specific environments and operative requirements without departing from the principles described herein. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive. The appended claims should be construed broadly, to include other variants and embodiments of the disclosure, which may be made by those skilled in the art without departing from the scope and range of equivalents.
The present application claims the benefit of priority to U.S. Provisional Application No. 61/570,951 filed Dec. 15, 2011, which is incorporated herein by reference in its entirety.
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Number | Date | Country | |
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61570951 | Dec 2011 | US |