US2040647A - Stapling machine - Google Patents

Description

May 12, 1936. G J FOD R 2,040,647

STAPLING MACHINE Filed April 27, 1935 2 Sheets-Sheet 1 WITNESSES 38 y 5 33 INVENTOR 60/"6JF/6/ fi/m .q/wqza BY 0/ G. J. FODOR STA LING MACH- INE F d r] 2 I INVEN BY I 07:76 1 1 0 6! disk WMZZ? Wu I ATTORNEY Patented May 12, 1936 2,040,647

UNITED STATES PATENT OFFICE STAPLING MACHlNE George J. Fodor, South Norwalk, Conn. Application April 27, -1935,.Scrla1 No. 18,620

6 Claims. 1-49) This invention relates to stapling machines the parts in their fully actuated condition with and particularly to a hand stapling machine used the staple fully inserted and clinched; in inserting and clinching small staples in paper Fig. 12 is a sectional view through Fig. 11 on i or the like, an object being to provide a simplithe line i2-i2;

5 fied construction easily operated by the hand Fig. 13 is a perspective view showing the lower 5 and one which will not readily becomeinoperagrip or handle and how the power lever extends five. therefrom;

Another object of the invention ,is to provide .Fig. 14 is a perspective view of the staple cara hand stapling machine using wire staples. of rier and the pres'ser head forming an extension the kind now in common use on the market, thereof; 10 wherein the staple is first moved to have the Fig. 15 is a perspective view showing a number prongs thereof forced through the papers being of staples secured together by an adhesive and secured together and then riveted or upset. Presenting refi l- An additional object is to provide an improved Referring to the accompanying drawings y 15 hand stapling machine for successively feeding numerals. l indicates W m y be t m o 15 U-shaped staples to an actuating point and at casing, the Same being formed p iv y the actuating point to first turn over the nd thin sheet metal merging into an upper grip or portions of the staple and finally to press said handle 2 which ooaots With-(flower 8 D end portions so that they will move to a position (11ov The casing is pr v d w th a notch 4 substantially parallel to the body of the staple. into which paper or other articles are insertedeo An additional object of the invention is to prowhen a Staple is to be a p e For invide a hand stapling ma hin tilizi U-shaped stance, when a staple is to be applied to one or wire staples, wherein a divided anvil is used to o e pieces 01 pap the pa t o the paper to turn the prongs of the staple after having pierced receive the ap is ed nto the notch l the paper or other article being stapled and then then the ps e an a d 3 e moved 25 moving a riveting lever against the prongs to fold toward each other as for as posslblo- The r p the prongs flatwlse against the paper or other handles are then released nd the P p r article being stapled. a moved. This action will cause one staple to be In the accompanying dr i applied in such a way that the two of the prongs Figure l is a side view of a hand stapling maof the taple will pass through t P per and be 30 chine disclosing n mb di t of t invention; clinched on the other side. If a second staple is Fig, 2 is an end vi w 1 the'gtgpling machine desired the same operation is repeated, and so h w i Fi 1; on as long as the staples are desired. After the Fig. 3 is a longitudinal vertical sectional view staple has been forced through the n v t through Fig. 1 illustrating the positio of the strikes an anvil, as shown in Fig. 10, and the 35 l t part and certain detail structure; prongs are.bent inwardly until a riveting lever 1 4 is tm View through Fig 3 on the hereinafter fully described strikes the bent ends line 4-4; 1 and clinches the staple. as shown in Fig. 12,

Fig. 5 is a horizontal longitudinal sectional whereby the D e are arranged t ntially 40 view through Fig. 3 on t 11 5...; looking parallel to the body of the staple and thus pre- 40 ward; sent a very flat finished staple structure.

Fig. 6 is a longitudinal sectional view through As illustrated a ly in Fig. 13. the lower Fig. 3 approximately on the line 6'-6, said secgrip or handle 3 is a substantially U-shaped tional view being taken from a position looking structure and is Pmvided with a P of 11P- downward; standing plates 5 and 6, said plates being pro- 45 Fig. '7 is a detail fragmentary transverse seovided with alined apertures I for the reception tional view through Fig. 3 on the line 'l-J; of a bolt or pivot pin 8. At the upper end the Fig. 8 is a perspective view of a stapling folpl 5 and 6 have right-angle extensions 8 lower disclosing certain features of the invend "I w h ar p s g her and form a m 1 power lever II. A pin l2 extends through the 50 Fig. 9 is a view similar to Fig. 3 but showing uppef part of the plates 5 and 6 so as to acthe parts in a partly actuated position; commodate one end of a retractile spring i3,

Fig. 10 is a transverse sectional view through which spring is anchored on a pin or shaft N Fig. 9 on the line Iii-ll; I carried by the grip or handle 2. The spring I:

Fig. 11 is a view similar to Fig. 9 but showing functions to normally keep the parts in the po- 6,

sition shown in Figs. 1 and 3, and returns the parts to this position whenever permitted.

The casing l which is integral with the grip or handle 2, is provided with a depending portion IS on each side and said depending portions are each provided with a forward extension l6. Connected to the depending portion is a piece of metal I! (Figures 9 and 10), which is preferably steel, said piece of metal having forward extensions l8 and I9 which act as anvils and which are provided with inclined notches 2B and 2|, said inclined notches forming in effect cams for turning over the prongs 22 and 23 of the staple 24. The block or piece of metal I! may be secured to the extension l6 by rivets or in any desired manner. arranged between the anvils l8 and I9 and pivotally supported by a journal pin 26. This lever is provided with an extension 21 and with an actuating face 28. The actuating face 28 is positioned as indicated in Fig. 12 so that it will engage the end portions of prongs 22 and 23 and force the prongs to a position as shown in Fig. 12, which is substantially parallel to the body 29 of the staple. The extension 21 on the riveting lever 25 acts on the bottom of a staple carrier 30, so that when the staple carrier is swung downwardly as shown in Fig. 11 the extension 21 will move downwardly and the actuating face 28 will move upwardly. A fiat spring 3| held in place by a screw 32, acts to return the lever 25 to its normal position as shown in Figs. 1 and 3 whenever permitted to do so.

The staple carrier 30 is an almost rectangular tube, as shown in Fig. '7, but by reason of the slot 32 at the upper end instead of being a tube it presents a channel-shapedstructure having inturned flanges 33 and 34 which are spaced apart sufficiently to permit a follower rod 35 and a. spring 36 to move therethrough whenever desired. Arranged within the carrier 30 is a channel iron 31 which is riveted or otherwise rigidly secured in place whereby when a refill 38 (Fig. 15) is inserted it will straddle this channel iron in the same manner as a follower 39. The follower 39 is a channel-shaped structure with an apertured depending ear 40 at each end for accommodating the follower rod 35. The side walls of the follower 39 have forwardly projecting portions 4| and 42 which bear against the prongs of the refill 38 so that as the spring 36 presses against one of the ears 40 it tends to move the refill to the left as shown in Fig. 3. The rod 35 is provided with a finger hole or loop 43, said loop having an extension 44 adaptedto be inserted through an aperture 45. whereby the rod 35 is locked against movement but the follower 39 is permitted to slide freely thereon under the action of the spring 36. By reason of this construction, the various staples in the refill 38 are urged toward the presser head 46 so as to be in position to be engaged and moved by the plunger or knife 41. The presser head 46 is closed at the bottom except for a slot 48 which slot is only wide enough and long enough for easily accommodating one of the staples. Preferably the head 46 is integral with the carrier 30. This head is provided with an elongated opening or slot 49 and with turned-in flanges 59 and 5|, which form a guide or runway 52 for the ejecting plunger 41. The plunger 41 is a comparatively thin rectangular piece of metal, the thickness being approximately the same as the thickness of one of the staples 23. As illustrated in Figs.10 and 12 the plunger 41 is pro- A clinching lever 25 is vided with an opening or slot 53 which is slightly less in length than the opening 49.

The power lever II, as shown in Fig. 13, when assembled with the other parts projects through the opening 53 in the plunger 41, as shown in Fig. 3, and also slightly through the opening 49, which is somewhat longer than the opening 53. The parts are rather snugly fitted together particularly with respect to the plunger 41 so that when the parts are in the position shown in Fig. 3 and the grips or handles 2 and 3 are moved toward each other, the carrier 39 will also move. However, if the carrier were held by the hand, the grips would move toward each other until the power lever H engaged the head 46 at the lower end of the slot or opening 49. Then the carrier 30 would move with the grip or hand1e3. This action is assisted by the fact that the first staple in the refill 33 will resist somewhat being removed from the rest of the staple. As the pressure increases the first staple will. leave the refill and move downwardly, the prongs 22 and 23 at this time extending at right angles to the body 29. As the grips and associated parts continue to move the prongs will pass through the paper, as shown in Fig. 10, and after passing through the paper or other article being secured together the prongs will strike the inclined notches 20 and 2| and be deflected inwardly as the parts continue to move. This inward deflection of the prongs is sufficient to permit the operating face 28 of the riveting lever 25 to engage the prongs and clinch the same as shown in Fig. 12. When the parts have been moved to this position the stapling operation has been completed and the next movement is to release the grips 2 and 3 and allow all the parts to move back to their normal position, namely, to the position shown in Figs. 1 to 4, inclusive. A second actuation will cause a second staple to be moved into operative position' and then clinched as shown in Fig. 12. It will be understood that this stapling operation may be done very rapidly and one staple after another used without any appreciable liability of jamming of the machine.

After the refill 38 has been exhausted, the extension 44 of the'finger hole or loop 43 may be moved out of the aperture 45, as shown in Fig. 3, and then the follower rod 35 and follower 39 pulled out of the carrier. A new refill of any desired length within the limits of the machine may then be inserted into the carrier by hand. It will be understood that the carrier 30 will take a refill which is only about half the length of the carrier or less. After the refill has been inserted the follower 39 is inserted and the parts moved toward the head 46 untilthey again assume the position shown in Fig. 3. This will bring the spring 36 under tension so that it will continue to move the follower and cause the same to feed the staples to the plunger or knife 41.

In mounting the carrier 30, it will be observed that there are provided apertured journal members 56 and 51 (Fig. 14) which are positioned between the plates 5 and 3 and which receive the bolt 8 so that the bolt 8 pivotally mounts the carrier and also the lower grip or handle 3.

I claim:

1. A stapling machine of the character described, comprising a casing provided with a handle, a second handle pivotally mounted on said casing and cooperating with the firstementioned handle, said second-mentioned handle having an extension acting as a power lever, a staple carrier mounted to swing on the pivotal mounting of said second-mentioned lever, said carrier being provided with a head having a slot, means mounted in the carrier for forcing a staple from the carrier into the space opposite said slot, a sliding plunger carried by said head, said plunger coacting with said power lever whereby when the power lever is moved by said second-mentioned handle in one direction the plunger will move a staple through said slot, means carried by said casing presenting a pair of inclined anvfls against which the prongs of said staple are adapted to be pressed, and a clinching lever actuated by said staple carrier for clinching the prongs of said staple after they have been deflected by said anvils.

2. In a staple machine including a casing having an opening into which paper or other material which is to be stapled is inserted, a pair of handles, one handle presenting a rigid extension of said casing, means for pivotally mounting the other of said handles to said casing, a staple carrier mounted to swing on the means for pivotally mounting said second-mentioned handle, said staple carrier being formed to receive a supply of wire staples, means for resiliently maintaining said supply of staples so that one end thereof will be at one end of said staple carrier, a head carried by said staple carrier and extending at right angles thereto, said staple carrier having an outlet slot, a plunger carried by said head positioned to force a staple from said supply of staples through said slot, a power lever extending from the second-mentioned handle, said plunger having an opening through which the power lever extends whereby whenever said handles are moved toward each other said plunger will be moved for forcing a'staple out of saidcarrier, an anvil positioned to engage and bend the prongs of said staple, and a clinching lever formed with a proiection positioned to be engaged by said staple carrier when the same is swung by said power lever whereby said clinching lever acts to clinch the prongs. of the staple.

3. A hand stapling machine including a pair of handles pivotally connected tagether; a staple actuated by said staple carrier for moving said prongs to a clinching position.

4. A hand stapling machine including a staple carrier, a pair of handles, a single member for pivoting said handles together and to said carrier, said handles being hollow and one handle merging into a casing into which part of said carrier projects, one of said handles having an extension presenting a power lever, said'extension ntting into said casing, a spring connected with said extension for normally holding the same in a given position and holding the first-mentioned handle away from the last-mentioned handle, said casing having an opening into which papers or other articles are fitted when a staple is to be applied thereto, said staple carrier having a'head at the end projecting into said casing,-said head and the last-mentioned end of said carrier being normally in one portion of said casing but movable so as to extend into the opening in the casing when a staple is being applied, a slotted plunger carried by said head for forcing the staple from said carrier, said power lever extending into the slot in said plunger for actuating the plunger when said handles are brought toward each other, a pair of anvils having beveled surfaces carried by said casing and positioned to engage and deflect the prongs of each staple forced from said carrier, and a clinching lever pivotally mounted on said casing positioned'to be swung by said staple carrierto clinch the prongs of the staple when the staple carrier is swung into the opening in said casing. e

5. A staple driving machine including a pair of pivotally connected members, a staple carrier rigidly mounted on one of said members and adapted to be swung in one direction when a staple is being applied, said carrier being formed with a slot through which staples may be forced therefrom, a plunger for forcing staples through said slot, a pair of anvils having inclined surfaces against which the prongs of said staple are adapted to be moved whereby said prongs will be deflected toward each other, and a pivotally mounted clinching lever actuated by said staple carrier for clinching said prongs, said lever moving the prongs until they are substantially parallel to the body of the staple.

6. A hand stapling machine including a staple carrier having means for supporting a plurality of staples, means for feeding said staples into operating position successively, a sliding plunger, for removing a staple on said carrier when in operative position and forcing the same in a given direction, and an anvil coacting with said plunger for clinching said staple, said anvil including a pair of deflecting members for the prongs of the staple, and a pivotally mounted clinching lever. moved by said carrier independently of said deflecting members for pressing said prongs into a clinched position.

GEORGE J. FODOR.

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