US1686752A - Spring air gun - Google Patents

Description

AOct 9, 192s.

1,686,752 F. LEFEVER SPRING AIR GUN Filed March 9. 1925 4 Cha/...sfcvr @and WM5; 4 Guy-mp Patented Oct. 9, 1928.

UNITED STA TES GHAR'LES'E. LEFEVER, 0F PLYMOUTH,MIGHIGAN, ASSIGNOR TO DAISY MANUFAC- yTU'fttllr'COI/IEAETY, OF PLYMOUTH, MICHIGAN, A CORPORATION OF MICHIGAN.

sPRiNG AIR GUN.

AApplication led March The invention relates to spring air guns of that type which simulate the appearance' of the so-called pump gun and in which the.

the danger of catching the vhand of the opera-r tor between the 'links and the barrel. It is` the object of the present invention to avoid the possibility vof such anaccident, and to this end the invention consists in the construction as hereinafter setxforth AIn the drawings: 4 s

Figure l is a sectional elevation ofthe gun showing the Vspring in Vreleased position; Figure 2 is a Vsimilar view with the pump handle adjusted to a positionV for engaging the sear with the plunger; Y l

Figure 3 isa similar view 4showing the spring compressed andthe parts in position ready for ring; f Figure 4 is a cross `section Online 4-4 of Figure l; and A f Figures 5, 6 and are perspective views of some of the parts detached.

A is the outer or so-called false barrel, a portion of which forms the air compression cylinder B containing the plunger'or .piston C, the spring D and plunger shank E. iF is the true barrel within the fforward por tion of the barrel A. with its rear end supported in the abutment Gr, against which the plunger strikes when the gun is fired. H is the frame which Vconnectsthe barrel A with Vthe stock l and contains the'triggerJ and other mechanism. This mechanism comprises the pump handle K connected: to a'swinging link L, which in turn is connected to the lever MV fulcrumed at N in ,thel frame. The forward end of the link Lslidably engages a i grooved guideway O on thebottom of the barrel andin the normal position of .parts the handle K is drawn to the rear and the link L and lever M are folded to lie within the frame H, as shownin Figure 1. The lever M has conneetedthereto allink Pextending rearward therefrom and connected by a pin Q with the sear R. The pin Q, is guided for n 9, 1925. seriai No. 14,261.

longitudinal movement preferably by engaging slots Sin opposite sides of the frame, which slots are concealed by overlapping portions of the barrel A. Thus when the handle K is moved forward and the link L and lever r M are swung into the position shown inFigure 2, the link'P and sear 'R will be' `drawn forward until the latter latches into engagement with a notch T.v at the rear end of the plunger shankE. The handle K may then be drawn rearward again and in so doing will force the link P, sear R, shank E and plunger C rearward, compressing the spring D, the rear end of which abuts against the frame H. .The movement is continued funtil theV Ipivot pin P connecting the link F toA thel lever kM passes slightly beyond the center line, connecting the fulcrum pin-M and the pin Q for the sear, thereby locking thelever mecha- -nism'against any reaction from the spring. However, the sear R, which is held in normal position by a small spring U, extends into operative vrelation to a finger J on the trigger J so that the pulling of said finger will disengage the sear from the notch Tand permit the spring D to force the plunger C forward. y f l Withthe construction as just'described, it will be noted that in the position of parts shown in Figure 1 the spring does not react against the lever mechanism, so that the handleK may be freely moved forward to engage the-*sear withthe notch T. rThe rearward movement of the handle K is opposedk by the p reactionof the spring D,- but the construction of the klevers is suchthat the power is pro- `Vgressively increased as the link P assumes theposition shown inFigure 3. lIn this po sition the rlink L and leverM are both fold- Ved within the frame H and the reaction of the spring D tends tohold them invthis folded position'. Thus should the sear be accidentally disengaged, it can have'no detrimental effect, but will merely permit. Athe forward vmovement oftheplun'ger C.- If the operators 'hand'should slip while he is actuating the handle K to compress the' spring, no injury could result for the reaction of thev spring will merely throw the leversV outward from the frame. Moreover the spring will be fullyl expanded before the .handle K reaches itsr forward position and in this position there is still sufficient angularity in the link L and lever M to hold these parts out of contact with the barrel.v y 110 spo lVhat I claimas my invention is:

l. In a spring air gun, the combination with a barrel, a spring actuated plunger therein, a member movable with said plunger and a sear engageable with said member for holding the plunger in the compressed position of the springof a handle slidable onsaid barrel normally occupying its rear position thereon, and levers connected to said handle normally folded, ,adaptedfto be straightened by the forward movement of said handle to engage the sear with said member and upon the rear movement of said handle to compress the spring.

2. In a springair gun, the combination with a barrel, a spring actuated plunger therein, of compression mechanism for said spring including normally folded levers, a travelling sear actuated by the unfolding of said levers to engage said springactuated plunger and upon the refolding of said levers to compress said spring, and a trigger in operative relation to said sear in the compressed position of the spring. i

3. In a spring air gun, the combination with a barrel, a spring actuated plunger ltherein and a frame connected with said barrel, of spring compressing levers normally in folded position within said frame, a handle connected withone of said levers slidable on said barrel to.. cause the unfolding` of the levers, a sear connected to said levers actuated by the forward movement of vsaid handle to engage said plunger and by the rear movement thereof tov compress the spring, and a trigger in operative relation to saidv sear in the rear position thereof to disengage the same from said plunger. f

4. In a spring air gun, the combination Vwith a barrel, a spring actuated plunger therein, a frame connected to said barrel, of spring compressing levers normally in folded position within said frame, a handle connected to one lof said levers slidable along said barrel to unfoldthe levers, a sear, a link connecting said sear with one of said levers, where bythe forward movement of said lever said sear is engaged with said spring actuated plunger and in the rear movement of the handle the spring is compressed, and a trigger within said frame arranged to be in operative relation vto said sear in the compressed positionv of the sprinO. i Y

V5. In a spring air gun, the combination with. a barrel, a plunger therein having a rearwardly extending shank, a spring surrounding said shank and an abutment for said spring through which said shank projects, of a frame, a toggle lever normally folded within said frame, a sear slidable within said frame, a link connecting said toggle with said sear and actuated by the unfolding of the toggle to engage said sear with said shank'and by the refolding thereof to compress the spring, and a trigger for disengaging said sear from said plunger.

6. In a spring air gun, the combination with a barrel, a plunger therein, and a spring compressible by retraction of said plunger, ofy

a mechanism for compressing said spring, establishing an inherent lock upon said mechanism in the compressed position ofthe spring, the spring acting to maintain the compressive position of said mechanism.'

7. In a spring air gun, the combination with a barrel, a plunger therein, and a spring compressible by retraction of said plunger, of a pair of levers adapted to be folded upon each other, an actuating membervconnected to one of said levers, and means connected to the other lever for retracting said plunger, as the levers are folded said spring re-a-cting through said connecting means upon said levers to maintain them folded.

8. In a spring air gun, the combination with a barreha plunger therein, and a spring compressible by retraction of said plunger, of a compression mechanism for said ,spring including a pairfof levers movable fromand extended to a folded position, an actuating member connected to one of said levers and a member connected tothe other lever engageable with said plunger in the extended position of the levers, and movable by foldingv of the levers to retract the plunger, said spring acting in the retracted position of thev plunger to resist unfolding of the levers.

9. In a spring air gun, thelcombination with a barrel, and a spring actuated lplunger therein, of a trigger, a sear forwardly movable to engage the plunger and rearwardly movable to retract the plunger and compress said spring, and releasable from the plunger by the trigger in its retracted position, and a lever mechanism controlling travel of `the sear, and establishing an inherent lock upon said mechanism in the retracted the sear to maintain said position. Y i

In testimony whereof I affix my signature.

Y CHARLES RLEFEVER.

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