BEDDING BLOCK FOR A RIFLE
20200132407 ยท 2020-04-30
Inventors
Cpc classification
F41C23/16
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41A3/66
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41C23/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41A21/482
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41A21/487
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
A bedding block for mounting a barreled action for a rifle to a stock can include an elongated body configured to receive the barreled action for the rifle in a semicircular channel defined in top surface of the elongated body. The semicircular channel can have a first radius, the barreled action can have a second radius, and the first radius can be less than the second radius.
Claims
1. A bedding block for mounting a barreled action for a rifle to a stock, comprising: an elongated body configured to receive the barreled action for the rifle in a channel of the elongated body, wherein: the channel extends along a length of the elongated body, the channel has a generally semicircular cross section, the semicircular cross section has a radius and a center of curvature, a portion of the barreled action configured to interface with the elongated body defines another radius, and the radius of the semicircular cross section is less than the radius of the barreled action.
2. The bedding block of claim 1, wherein the channel is defined in an upper surface of the elongated body.
3. The bedding block of claim 1, wherein the channel includes opposing left and right sidewalls, a portion of each of which extends upwardly above the center of curvature.
4. The bedding block of claim 3, wherein a portion of each of the left and right sidewalls extends above the center of curvature from about 0.005 to about 0.030 inches.
5. The bedding block of claim 3, wherein the left and right sidewalls of the channel flex around the barreled action during introduction of the barreled action into the channel and grip the barreled action in an interference fit when the barreled action is seated in the channel.
6. The bedding block of claim 5, wherein the left and right sidewalls of the channel return to an original rest position when the barreled action is removed from the channel.
7. The bedding block of claim 2, wherein the center of curvature is below a horizontal plane containing the upper surface of the elongated body.
8. The bedding block of claim 1, wherein the radius of the semicircular cross section of the channel is from about 0.25% to about 10% less than the radius of the barreled action.
9. The bedding block of claim 1, wherein the radius of the semicircular cross section of the channel is about 0.25 to about 1.50 inches.
10. The bedding block of claim 1, wherein a bottom surface of the channel includes textural features configured to interface with the portion of the barreled action defining the radius of the barreled action.
11. The bedding block of claim 1, further comprising a clamp assembly configured to selectively apply a compressive retaining force to a recoil lug of the barreled action when the barreled action is received in the channel of the elongated body.
12. The bedding block of claim 11, wherein: the clamp assembly comprises: a threaded fastener having a head portion and an elongated portion, a wedge member having top surface, a bottom surface, a generally vertical rear surface, a forward surface spaced from the rear surface, the forward surface having an upward slope, and a threaded aperture in which the elongated portion of the threaded fastener is matingly receivable extending parallel to the slope of the forward surface upward from the bottom surface to the top surface, a slot in which the recoil lug of the barreled action is receivable defined in a forward portion of the elongated body, a recess in which the wedge member is receivable defined in the forward portion of the elongated body forward of and adjacent to the slot, the recess having an upwardly sloped forward wall, and a through hole extending from a bottom surface of the elongated body to a floor of the recess, the through hole sharing an axis with the threaded aperture when the wedge member is received in the recess; and selectively tightening the threaded fastener when the recoil lug is received in the slot and the threaded fastener extends through the through hole and into the threaded aperture of the wedge member translates the wedge member down the sloped forward wall of the recess to apply a compressive retaining force to the recoil lug.
13. The bedding block of claim 12, wherein the wedge member has a cross section generally forming a right trapezoid.
14. The bedding block of claim 12, wherein the clamp assembly further includes an adaptor plate and at least one fastener for fastening the adaptor plate to the vertical rear surface of the wedge member.
15. A stock assembly configured to mount a barreled action for a rifle, the stock assembly comprising: a stock having an elongated recess defined in an upper surface thereof; and a bedding block rigidly secured in the elongated recess of the stock, the bedding block including an elongated body configured to receive the barreled action for the rifle in a channel defined in the elongated body, wherein the channel has a first radius, the barreled action has a second radius, and the first radius is less than the second radius.
16. The stock assembly of claim 15, wherein: the channel extends along a length of the elongated body, the channel has a semicircular cross section, the semicircular cross section of the channel defines the first radius, the second radius is defined by a portion of the barreled action that interfaces with the channel.
17. The stock assembly of claim 15, wherein: the semicircular cross section of the channel has a center of curvature, and the channel includes opposing left and right sidewalls that extend upwardly above the center of curvature.
18. The stock assembly of claim 15, further comprising: a clamp assembly configured to selectively apply a compressive retaining force to a recoil lug of the barreled action when the barreled action is received in the channel of the elongated body, wherein the clamp assembly includes: a threaded fastener having a head portion and an elongated portion, a wedge member having top surface, a bottom surface, a generally vertical rear surface, a forward surface spaced from the rear surface, the forward surface having an upward slope, and a threaded aperture in which the elongated portion of the threaded fastener is matingly receivable extending parallel to the slope of the forward surface upward from the bottom surface to the top surface, a slot in which the recoil lug of the barreled action is receivable defined in a forward portion of the elongated body, a recess in which the wedge member is receivable defined in the forward portion of the elongated body forward of and adjacent to the slot, the recess having an upwardly sloped forward wall, and a through hole extending from a bottom surface of the elongated body to a floor of the recess, the through hole sharing an axis with the threaded aperture when the wedge member is received in the recess; wherein selectively tightening the threaded fastener when the recoil lug is received in the slot and the threaded fastener extends through the through hole and into the threaded aperture of the wedge member translates the wedge member down the sloped forward wall of the recess to apply a compressive retaining force to the recoil lug.
19. A method of mounting a barreled action for a rifle to a stock, comprising: providing a bedding block including an elongated body configured to receive the action for the rifle in a semicircular channel defined in the elongated body, wherein the channel has a first radius, the barreled action has a second radius, and the first radius is less than the second radius; providing a stock having a recess in which the bedding block is receivable; securing the bedding block in the recess of the stock; and fastening the barreled action for the rifle in the channel of the bedding block.
20. The method of claim 19, wherein: the channel of the bedding block extends along a length of the elongated body, the channel has a semicircular cross section, the semicircular cross section of the channel defines the first radius, a portion of the barreled action interfaces with three different portions of a bottom surface of the channel, and the second radius is defined by the portion of the barreled action which interfaces with the bottom surface of the channel.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0016] Non-limiting and non-exhaustive embodiments are described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various drawings unless otherwise specified. In the drawings, not all reference numbers are included in each drawing, for the sake of clarity.
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DETAILED DESCRIPTION
[0033] While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides many applicable inventive concepts that are embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.
[0034] To facilitate the understanding of the embodiments described herein, a number of terms are defined below. The terms defined herein have meanings as commonly understood by a person of ordinary skill in the areas relevant to the present invention. Terms such as a, an, and the are not intended to refer to only a singular entity, but rather include the general class of which a specific example may be used for illustration. The terminology herein is used to describe specific embodiments of the invention, but their usage does not delimit the invention, except as set forth in the claims.
[0035] As described herein, an upright position is considered to be the position of apparatus components while in proper operation or in a natural resting position as described herein. The words vertical, horizontal, above, below, side, top, bottom and other orientation terms are described with respect to this upright position during operation unless otherwise specified. A person of skill in the art will recognize that the apparatus can assume different orientations when in use. It is also contemplated that embodiments of the invention may be in orientations other than upright without departing from the spirit and scope of the invention as set forth in the appended claims.
[0036] The term when is used to specify orientation for relative positions of components, not as a temporal limitation of the claims or apparatus described and claimed herein unless otherwise specified. The terms above, below, over, and under mean having an elevation or vertical height greater or lesser than and are not intended to imply that one object or component is directly over or under another object or component. Left and right are described with respect to a right-handed rifle. One of ordinary skill in the art will appreciate that features may be reversed from left to right to adapt the rifle or other subject matter to a left-handed shooter.
[0037] The phrase in one embodiment, as used herein does not necessarily refer to the same embodiment, although it may. Conditional language used herein, such as, among others, can, might, may, e.g., and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or states. Thus, such conditional language is not generally intended to imply that features, elements and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without author input or prompting, whether these features, elements and/or states are included or are to be performed in any particular embodiment.
[0038] As used herein, the terms stock and chassis are interchangeable. Although it is expected that the bedding block described herein will typically be used with traditional wooden and synthetic stocks comprising a butt and a forend, it is contemplated that the bedding block described herein may also be used with modern unibody and modular chassis formed from one or more metallic, synthetic, and natural materials.
[0039] As used herein, the term rifle means any long gun or handgun, whether a firearm or an airgun, having a rifled barrel and an action or receiver which mounts to a stock or chassis. Although it is expected that the bedding block described herein will typically be used with high-power bolt action rifles suitable for large game hunting or long range precision shooting, it is contemplated that the bedding block described herein may be used with any kind of firearm or airgun having a rifled barrel and a barreled action or receiver which mounts to a stock or chassis. For example, it is contemplated that the bedding block disclosed herein can be used with high-power, large caliber handguns and airguns.
[0040] Referring now to
[0041]
[0042] Referring to
[0043] The bedding block 10 includes an elongated body 12 having a length L, a width W, a forward end 14, and a rearward end 16 spaced from the forward end. The elongated body 12 also has a right side 18 and a left side 19 opposite the right side, as well as an upper surface 20 and a lower surface 22. The right and left sides 18, 19 of the elongated body 12 can be formed with grooves 48 or other concavities to facilitate ingress and thus superior adhesion of bedding material (e.g., epoxy) during installation of the bedding block 10 in a stock 70. The forward end 14 and rearward end 16 of the elongated body 12 can similarly include one or concavities, such as blind apertures 50, to further ensure that the bedding block 10 will remain firmly and lastingly secured immovably in the stock 70.
[0044] A channel 24 in which a barreled action 85 for a rifle 100 is removably receivable is formed in the upper surface 20 of the elongated body 12. The channel 24 extends along the length L of the elongated body 12 from the forward end 14 to the rearward end 16. The channel has a curved bottom surface 28 and curved opposing right and left sidewalls 18a, 19a, respectively, which extend generally upwardly from the bottom surface 28 and along a portion of the length L of the elongated body 12. In some embodiments, as best shown in
[0045] Turning to
[0046] Coordinately, the center of curvature 25 can be from about 0.250 inches to about 2.000 inches above the bottom surface 28 of the channel 24. In some embodiments, the center of curvature 25 can be from about 0.500 inches to about 0.750 inches above the bottom surface 28 of the channel 24. In some embodiments, the center of curvature 25 can be from about 0.600 inches to about 0.700 inches above the bottom surface 28. In specific embodiments, the center of curvature 25 of the channel 24 can be about 0.600, 0.650, 0.610, 0.615, 0.620, 0.625, 0.630, 0.635, 0.640, 0.645, 0.650, 0.655, 0.660, 0.665, 0.670, 0.675, 0.680, 0.685, 0.690, 0.695, or 0.700 inches above the bottom surface 28 of the channel 24. In a particular embodiment, the center of curvature 25 can be about 0.670 inches above the bottom surface 28 of the channel 24.
[0047] Referring again to
[0048] Although the radius of curvature 26 of the channel 24 can be varied to accommodate a barreled action 85 of any radius or diameter, it is to be understood that the radius 26 (and thus the diameter) of the channel 24 should be less than the radius (and thus the diameter) of the portion of the barreled action 85 which is to be seated in and interface with the channel. In combination with certain features of the sidewalls 18a, 19a further explained below, the undersized radius of curvature 26 (i.e., undersized compared to the radius of the portion of the barreled action 85 with which the channel 24 interfaces) simultaneously centers the barreled action within the channel 24 and creates an interference fit between the sidewalls 18a, 19a of the channel 24 and the barreled action 85 when the barreled action is seated in the channel. Accordingly, in some embodiments, the radius of curvature 26 of the channel 24 can be from about 0.25% to about 20% less than the corresponding radius of the barreled action 85 to be received in the bedding block 10. In some embodiments, the radius of curvature 26 of the channel 24 can be from about 0.50% to about 15% less than the corresponding radius of the barreled action 85 to be received in the bedding block 10. In other embodiments, the radius of curvature 26 of the channel 24 can be from about 1% to about 10% less than the corresponding radius of the barreled action 85 to be received in the bedding block 10. In a particular embodiment, the radius of curvature 26 of the channel 24 can be from about 1% to about 5% less than the corresponding radius of the barreled action 85 to be received in the bedding block 10.
[0049] Additionally, as is best seen in
[0050] Notably, the amount of displacement of channel sidewalls 18a, 19a is such that it does not overcome the material yield strength. Put differently, the tapered structure of channel sidewalls 18a, 19a combined with the resilient properties of the constituent material from which they are formed permits the sidewalls 18a, 19a to return to their original shape when the barreled action 85 is removed from the channel 24. This enables the sidewalls 18a, 19a of the channel 24 of the bedding block 10 to flex to fit numerous differently sized barreled actions 85 (i.e., barreled action having different radiuses or diameters) without taking on a permanently deformed shape or otherwise becoming loose, which in turn greatly extends the useful life and versatility of any stock assembly 80 of which a bedding block 10 disclosed herein is made a part.
[0051] Referring again to
[0052] The bedding block 10 can further advantageously include an elongated pillar 44 extending downwardly from the lower surface 22 of the rearward end 16 of the elongated body 12 for indexing the bedding block 10 to a rifle stock 70. The pillar 44 can be formed integrally the elongated body 12, or as a separate, removable member. The pillar 44 includes a hole extending longitudinally through the pillar and coaxially with the rearward action screw hole 42 in the elongated body 12 to permit an action screw 78a to engage an action screw hole in a lower surface of the barreled action 85 through the pillar 44. A relatively shorter pillar 45 through which forward action screw hole 40 extends projects downwardly from the lower surface 22 of the forward end 14 of the elongated body 12. The presence of pillars 44, 45 on the lower surface 22 of elongated body 12 also serves to elongate action screw holes 42, 40 and thereby to prevent the formation of accuracy-reducing high spots around the action screw holes in the lower surface of the barreled action 85.
[0053] Referring now to
[0054] The elongated body 12 can also include recesses in which the separable components of the clamp assembly are receivable. For example, a recoil lug slot 34 in which the recoil lug 88 of the barreled action 85 is receivable can be formed in a forward portion of the elongated body 12. A clamp assembly or wedge member recess 36 can be similarly formed in the forward portion of the elongated body 12 adjacent to and forward of the recoil lug slot 34. The recoil lug slot 34 can have a floor 35, as can the wedge member recess 36. The surface of the wedge member recess floor 37 can be substantially coplanar with the surface of the recoil lug slot floor 35. The wedge member recess 36 can also include an inclined or sloped forward surface or wall 39, and a through hole 38 spaced rearwardly of wall 39 extending from the wedge member recess floor 37 to the lower surface 22 of elongated body 12. The through hole 38 can be concentric with the threaded aperture 64 of the wedge member 60 when the wedge member is received in the wedge member recess 36.
[0055] The clamp assembly can be activated by selectively threading the clamp screw 68 into or out of the threaded aperture 64 in the wedge member 60 when the clamp screw 68 extends through the through hole 38 in the floor 37 of the wedge member recess 36. Tightening the clamp screw 68 while the recoil lug 88 is received in the recoil lug slot 34 translates the wedge member 60 down the sloped forward wall 39 of the wedge member recess 36 and rearwardly against the forward surface of the recoil lug 88 to simultaneously apply a downward and rearward compressive retaining force to the recoil lug 88, thereby trapping the recoil lug 88 in the recoil lug slot 34 and reducing the amount of vibration transmitted to the action screws upon firing of the rifle. Conversely, loosening the clamp screw 68 translates the wedge member 60 up the sloped forward wall 39 of the wedge member recess 36 to relieve the compressive retaining force and release the recoil lug 88 from the recoil lug slot 34.
[0056] The recoil lugs 88 of different barreled actions 85 are not uniformly sized. Accordingly, to increase the versatility of the bedding block 10 and facilitate retention of differently sized (including especially thin) recoil lugs, the clamp assembly can further include an extension piece or adaptor plate 66 and a pair of fasteners 62a, 62b for fastening the adaptor plate 66 to the vertical rear surface 61 of the wedge member 60. Once fastened to the wedge member 60, the adaptor plate 66 serves to extend the wedge member further rearward than the wedge member would otherwise extend, even if translated all the way down the sloped forward wall 39 of wedge member recess 36 to floor 37.
[0057] The forward portion of the elongated body 12 can also advantageously include a relief radius rearward of and adjacent to the recoil lug slot 34 to allow barreled actions 85 with abnormally large integral recoil lugs to sit flush on the bottom surface 28 of the channel 24 without the need for custom gunsmithing to relieve implicated areas.
[0058] This written description uses examples to disclose the invention and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
[0059] It will be understood that the particular embodiments described herein are shown by way of illustration and not as limitations of the invention. The principal features of this invention may be employed in various embodiments without departing from the scope of the invention. Those of ordinary skill in the art will recognize numerous equivalents to the specific procedures described herein. Such equivalents are considered to be within the scope of this invention and are covered by the claims.
[0060] All of the compositions and/or methods disclosed and claimed herein may be made and/or executed without undue experimentation in light of the present disclosure. While the compositions and methods of this invention have been described in terms of the embodiments included herein, it will be apparent to those of ordinary skill in the art that variations may be applied to the compositions and/or methods and in the steps or in the sequence of steps of the method described herein without departing from the concept, spirit, and scope of the invention. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope, and concept of the invention as defined by the appended claims.
[0061] Thus, although there have been described particular embodiments of the present invention of a new and useful BEDDING BLOCK FOR A RIFLE, it is not intended that such references be construed as limitations upon the scope of this invention except as set forth in the following claims.