US2925679A

US2925679A - Magnetic gun recoil pad structure

Info

Publication number: US2925679A
Application number: US741858A
Authority: US
Inventors: Norman A Bivens
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-06-13
Filing date: 1958-06-13
Publication date: 1960-02-23
Anticipated expiration: 1977-02-23

Description

Feb. 23, 1960 N. A. BNENs MAGNETIC GUN REcoIL PAD STRUCTURE Filed June 15, 1958 I INVENTOR NQQMAN A. B/Ens A'TTCZNEYS A il,

`by magnetic attraction.

United States .Parenti 2,925,659 I l A MAGNETIC GUN REcorL PAD STRUCTURE orman Bivens, North Hollywood, Calif.V i A Application June 13, 195s, serial No.v 741,358

1 claims. (cl. tz-74)- This invention relates to improvementsv in quick detachable gun butt recoil pads, and more vparticularly to improved gun recoil pad structures ofvthis kind wherein the recoil pads are removably secured lon their gun butts The primary object of the invention is Vto provideniag- ICC( i, isa-,aniexploded:sectionalview, similarto f Figure 2, .showing *anotherforni of Ithe invention', iunvly ngfa hollowgun stock; mi` A l Y 'Figure 6 is @fragmentary `warnen transverjls'efs'ectqn vtake'rion the line 6;.6fyofFi'gu`1-e5ff Referring in detail to the drawingsfwhevrein'like or bitt end 12 which is hat; and the numeral 14.'generally designates a separable.shoulder-engaging, butt cap hav'.-

' ,ingfa' forward end 16 having securedthereon arecoil netically secured recoil pads -for gun buttstwhich can' v -be more q'uickly and easily interchanged in, theffeld, the

'recoil pads being `sutciently -strongly secured.tothegun butts to preclude their coming` ol under any conditions orf. accidents ordinarily met with in the field, lbut being and non-magnetic plugs on bosses removably engageable therein with magnetic armature plates ,surrounding the plugs, which are interchangeably securable either on the ,recoil pads or on the gun butts, so that the structures Y thebutt cap 14 and the gun stock 1i).v

capable of being easily removed by manually pulling the vhaving mechanical parts, and involve magnetic sockets can be more suitably accommodated Vto diierentrrecoil lhave secured on their forward gun butt engaging ends,

recoil absorbing pads which involve dual resilient shockabsorbing or cushion plates between which is sandwiched a non-compressible base plate, tovwhich the plugs or the magnetic sockets are secured, the base plate having embedded therein a stiffening plate, in a manner to provide rigid mounting for the plugs or sockets, and to preclude buckling of the recoil pad during removal of the butt cap from a gun stock.

A still further object of the invention is to provide magnetic retaining and positioning means of the character indicated above which can be marketed as akit for easy application, with a minimum of work and mutilation thereof, the butt caps and gun stock butts, so as to provide therefor quick-detachable magnetic securement of the butt caps to the stocks, at relatively low cost.

Other important obejcts and advantageous features of the invention will be apparent from the following description and the accompanying drawings, wherein, for purposes of illustration only, a specific form of the invention is set forth in detail.

In the drawings:

Figure 1 is a rear end elevation of a butt cap in accordance with the present invention, the recoil pad stilfening plate, plugs, armature plates, and magnetic sockets being shown in phantom lines;

Figure 2 is a fragmentary vertical longitudinal section taken on the line 2-2 of Figure 1;

Figure 3 is an enlarged fragmentary horizontal section taken on the line 3 3 of Figure 2;

Figure 4 is an exploded perspective view showing related ends of the butt cap and gun stock;`

shock absorbing pad, 4generally designated 18..

1.'I`he` recoil pad 18 consistsof asandwichcomposed of a'rea'r resilient shock-absorbing orfY cushion plate 20, shaped conformablytofand vsecured in suitable manner,

to the forward-end 16of the-.butt fcap 14, a; rfigidfnon-A compressible basei platelf22, .and a VforwardV resilient.

shock-absorbing'or cushion plate 24, The*

plates

20,22 and24 are preferably molded f'such as neoprene,'an`d colored to disguise and conformV their presence between c Embedded in andspacedfro thenppe'r andlow,er ends and the vside edges ofthevrigidbase:plate 22 isa wcentralrelatively narrow verticallyfelongated rigid metal nstiffening plate 26, which is preferably` offan aluminum alloy, land has vgrooves `27 in -its `side-,edges receiving lrr'iateria'lv of the'base plate 22'. f I

Seated in openings 28 providedinthe -frontplate 24 at the ends of the stilening plate 26. andv bearingl against the front sides-of the stiiening plate 26 andther'center platel22, are annular magnetic armature plates 30, whose front surfaces are preferably hush with the front side @of theY front plate 24. Preferably aluminum alloypositioning plugs or bosses 32 comprise reduced threaded "shanks 34 and enlarged. diameter headsy 36. whichV define shoulders 38 on the rear ends ofthe heads 36A which bear against the front sides of the'armature'plates 30 Vwhen the shanksf34 are threaded into openings 40pmfvided at the'ends of the stiiening .plate 26,`whereb y the Zarrnatu're plates 30 and .the-plugs 32 are securedto the'pad 18, with theheads 36 yof :the plugs projecting forwardly. from .the paella.' The plug headsa niet' "e'r'ably' have screwdriver slts'42`in their forward lends for easy installation and removal thereof. The described Yassociation of pad 18, stiffening plate 26, armature plates 30, and plugs 32'provides a rigid construction which will not buckle orloosen'under field use of a gun or when a butt cap is being secured to or removed from a gun stockat high speed and with a minimum`of attention and care.

In the butt or rear end 12V of the gun stock 10 are i formed threaded counterbores 44 in which are threadably and` removably' engaged magnetic sockets 46 having rear ends 48 which are preferably substantially liush with therear end 12 of the gun stock 10. The magnetic'sockets 46 are lined up with the armature plates 30 andthe positioning plugs 32, and have therein preferably axial smooth counterbores 5i), into which the plugcheads 36 are conformably and slidably engageable forpositioning and retaining the butt cap 14 in perfect 'alignment-with, the gun stock 10. The magnetic attraction between the magnetic sockets 46 and the armature plates 30, which are then in contact withkeach other, is suicient to hold Y the plugs 32 in the sockets 46 unless' and until suicient y endwise force is exerted to overcome the-magnetic attraction.Y It will thus be seen that separation of the butt cap 14 from the gun stock 10,01 connection of the butt cap 14 on the gun stock 10 is a simple matter of unplugging and plugging the butt cap on the gun stock and involves no other operations, mechanical Qt otherwise.

In the form of the invention shown in Figures 5 and 6, involving a hollow gun stock a having a longitudinal core 52, which makes it 'l preferable and advisable to mount the plugs 32a and the armatureY plates 39a on the gunstock llrand the magnetic sockets 46a on .the butt 'cap pad 18a, the plugs 32a haveelongated woodscrew shanks 34a which are threaded into the open stock butt end 12a with the armature plates a'bearing against the end 12a and held in place by the heads 36a of the plugs 32a.

The magnetic sockets 46a instead of being plain cylindrical, like the magnetic socket 46 of Figures I to 4, the sockets 46a have lateral annular stop flanges 54 on their rear ends. The main p arts of the sockets 46a, as shown in Figure 5, are seated in openings 28a in the stiffening plate 26a, with the flanges 54 in openings 56 in the rear plate 20a and in recesses 58 in the butt cap 14a, and withthe flanges 54 in stop engagement with the rear side of the stiffening plate 26a.

The sockets 46a have terminal front ends 60 which are preferably ush with the rear side of the front plate 24a, and are registered with openings 62 in the front plate 24a, which are provided to receive theV armature plates 30a into contact with the front ends 60 of thesockets 46a.

While there has been shown and described herein a preferred form of the invention, it is to be understood that the invention is not necessarily confined thereto, and that any change or changes in the structure of and in the `relative arrangements of components thereof are contemplated as being within the scope of the invention as defined by the claims appended hereto.

What is claimed is:

l. A gun recoil pad structure comprising a gun stock having a butt end, a shoulder-engaging butt cap having a front end, a recoil pad secured on the front end of the butt cap and engaged with the butt end of the gun stock, and magnetic positioning and retaining means comprising separable magnetic components severally secured on the butt end of the gun stock and on said front end of the butt cap and engaged with each other.

2. A gun recoil pad structure comprising a gun stock having a butt end, a shoulder-engaging butt cap having a front end, a recoil pad secured on the front end of the butt cap and engaged with the butt end of the gun stock, and magnetic positioning and retaining means having separable components removably securing the butt cap to the gun stock, comprising rst and second components, said second components comprising magnetic sockets, and said first components comprisingpositioning plugs removably engageable in the sockets and magnetic armatures operatively connected to said plugs and engageable with the magnetic sockets only while the plugs are in the sockets.

3. A gun recoil padvstructure according to claim 2, wherein said plugs are securedin the recoil pad and said sockets are secured in the butt end'ofl the gun` stock.

4. A V'gun recoil pad structure accordingto claim 2, wherein said plugs are secured in the butt end'of the gun stock and said `sockets are secured inthe recoil pad.

5. A gun recoil pad 'structure 'according to claim 2, wherein said recoil pad comprises a sandwich composed of a rear resilient cushion plate secured to the front end of the butt cap, a center rigid and non-compressible base plate secured to said rear plate, and a front resilient cushion plate secured to said base plate, and a centered relatively narrow stifeni'ng plate embedded in said base plate.

6. A gun recoil pad structure comprising a gun stock v'having a butt end, a shoulder-engaging butt caphaving a front end, a recoil pad secured on said frontend, said pad having a front end bearing against said butt end, magnetizable sockets fixed in said gun stock and exposed at said butt end, plugsnfixed insaid recoil pad, said plugs extending forwardly from the front end of the pad and being engaged in said sockets, and magnetic armature plates xedly surrounding the plugs and engaged with the sockets and magnetically attracting the sockets.

7. A gun recoil structure comprising a gun stock having a butt end, a shoulder engaging butt cap having a front end, a recoil pad secured on said front end,'said recoil pad having a front end engaged with said butt end, magnetizable sockets fixed in said recoil pad, plugs xed on said gun stock and projecting rearwardly beyond said butt end, and magnetic armature plates fixedly surrounding the plugs and secured to the butt end, said plugs being engaged in the sockets and said armature plates being engaged with and magnetically attracted to the sockets.

References Cited in the file of this patent UNITED STATES PATENTS 2,344,752 Utz Mar. 21,1944 2,650,446 Bivens Sept. 1, 1953 2,667,005 Weis Jan. 26, 1954