US1908981A - Staple setting machine - Google Patents

Description

May 16, 1933. H. E. HICKS 1,908,981

STAPLE spnme MACHINE Filed June 29,1931 v 4 2 Sheets-Sheet 1 Smaentor:

Ma.y 16, 1933. H. E. H ICKS 1308,98"!

I STAPLE SETTING MCHINE I Filed June 29.1931 2 Sheets-Sheet 2 EH 6 luv/llama W x x .V/ @U 5 8 4m w Invenior:

Patented May 16, 1933,

UNITED STATES. PATENT OFFICE many 1:. areas. or ruins, NEW. ninsmr, assrenoa roams 3mm confirm, or caxmm, mrw masnr, a oonrona'non or NEW mass:

SETTING CHIN E Application fled June 29,

This invention relates to improvements in staple setting machines and has for its object b to provide a novel, sim le and eflicient means whereby a staple may so set with relation to the work acted upon that it will not cut or punch its way through the work but will surround and enclose the entire body thereof.

The invention is particularly adapted for use in banding or bundling or bindin together articles of various kinds and of vary ing degrees of hardnessand softness.-

With the object above set forth and related objects in view, 'the invention resides in the elements and the combinations of them hereinafter described and claimed.

In the accompanying drawings, illustrating the invention,

Figure 1 is a side view, partly broken away,

of a staple setting machine embodying my' invention.

Figure 2 is a front view thereof.

Figure 3 is a vertical section through the forward portion of the'machine, on line 33 of Fig. 2, showing the member which carries the staples and the staple driver moved down into contact with the work positioning pins.

Figure 4 is a vertical section through the parts shown in Fig. 3, on line H, showing a piece of work between the work positioning pins to be acted upon by the machine.

Figure 5 is a sectional view similar to the lower portion of Fig. 4, showing the staple.

carrying member moved down to depress the work positioning pins, and showing the sta ple driver moved down about one-half the length of its stroke within the member.

Figure 6 is a sectional view showing the parts shown in Fig. 5 in the final positions thereof at the completion of a staple setting operation.

I Fi re 7'is a top view, enlarged, of the staple c inching. the work positioning pins and the supporting block therefor.

Figure 8.is an enlarged side view of a piece of Work having a staple set thereon by the machine to surround and enclose the work,

Figure 9 is a view of a modified form of staple for use within the machine, and a modified form of ma azine bar for receiving and guiding a row the modified staples.

1931. Serial No. 547,538.

Referring to the drawings,2 designates the y or supporting frame of the machine, which is secured upon a suitable table or support 5.

-The frame 2 is provided with a laterally and forwardly extending arm 6 having a horizontal bore therein for the reception of a shaft 7. One end of the shaft 7 extends outwardly from the bore in the arm 6 andsupports a block 8 which carries the staple clinching anvil 9. The shaft 7 may be turned within the bore in the arm 6 and it may bemov ed longitudinally therein for the purpose of adjusting the block 8 andthe parts carried thereby with relation to other parts of the machine, and the shaft 7 and block 8 are held in different positions of adjustment by set screws 10. screwed into the arm 6 and engaging the shaft. r

A member 11 is pivoted, at 12, on the frame 2. -One side of the member 11 is ooved and formsa ma azine 13 for a row 0 staples, 14. The row 0 staples 14 is embraced and are adapted to slide on a guiding rib or bar 15 which extends longitudinall in the magazine 13 and is secured at its ottom to the member 11. The staples 14 are guided by the bar 15 to be moved forwardly thereon and into a staple guiding channel 16 which extends up and down transversely to the bar 15 and which is formed by the forward endwall of the bar 15 and by two blocks 17 and 18 which are suitably secured within an opening in the member 11 back of a front plate 19 which is secured to the member 11 by screws 20.

The lower end portions of the blocks 17 and 18 form a nose 21 which extends downwardly from the forward end of the member 11 and through which the channel 16.extends. The lower end of the channel 16 is open and the channel is adapted to be brought substantially into vertical alinement with the staple clinching anvil 9, when he forward portion of the member 11 is moved downwardly to the position shown in Figs. and 6. I

The row of staples 14 is fed forwardly on the guiding bar toward and against the front wall 17 of the channel 16 by a suitable follower 22 which embraces is slidablwardly by a spring 23 which is connected thereto and to the member 11 in the' usual manner to urge the row of staples 14 toward and against the wall 24 of the channel 16.

The space between the front end-of the bar plate 25 is made concave in form as shown,

for a purpose hereinafter explained. The up per end portion of the staple driver 25 is secured to the lower end portion of a bar 26 which is fitted to slide within an upwardly extending limb 27 on the forward end portion ofthe member 11. I

During the staple setting operations hereinafter described, the bar 26ismoved down 0 and up to reciprocate the staple driver'25 within the channel 16; and, at each downward stroke of the driver 25, from the position shown in Fig. 4 tothe position shown in Fig. 6, the lower end thereof engages the foremost staple of the row 14 thereof which rests against the wall 24 and drives the staple downwardly through the channel 16.

The bar 26 is pivotally connected to the forward end of a lever 28 which is fulcrumed,

at 29, on the. member 11 and which is pivotally connected to the upper end of an operating bar 30 which extends downwardly from the lever 28 and through suitable open ings in the base of the frame 2 and table 5. The forward end of the lever 28 is bifurcated and embraces the limb 27 of the member 11 and it is pivotally connected to the bar 26 by a pin 31 which extends through a slot or opening inthe bar and through vertical slots 33 or openings in the sides of the limb 27.

The lever 28 is raised relatively to the member 11 to raise the bar 26 and staple driver 25 within the channel 16 by a spring 32 which is interposed between the top of the member 11 and the bottom of the lever28 and which is retained vin place by a post which projectsupwardly from the member 11 and whichis encircled by the lower portion of the spring.

From the foregoing description, it will be understood that the lever 28 may be depressed relatively to the member 11 against the action of the spring 32 to actuate the staple driver 25 within the channel 16, and that, normally, the spring 32 holds the pivot pin 31 in contact with the upper end walls of the slots 33, so

thatthe lever 28 and member 11 may be lowered and raised as a unit by lowering and raising the operating bar 30.

When the lever 28 and member 11 are raised tothe position shown in Figs. 1 and 2,

further upward movement thereof is prevented by the engagement of a projection 34 on the member 11 with a lug 35 on the frame 2.

In the normal position of the machine, as

'65 shown in Figs. 1 and 2, the projection 34. is

held against the lug 35 by the action of a spring 36, one end of which is attached to the operating bar 30 and the other end of which is attached to the bottom of the table 5.

The bar-30 maybe connected to a suitable pedal for operating the machine or it may be moved downwardly by any suitable means to effect the operation of the machine.

When the machine is operated b movin the bar 30 downwardly, the initial d bwnwar movement thereof moves the lever 28 and member 11 downwardly as a unit until a projection 37 on the member 11 engages an adjustable stop screw 38 carried by a boss 39 on the frame 2, and prevents further downward movement of the member 11, whereupon the continued downward movement of the bar 30 moves the lever 28, bar 26 and staple driver 25 downwardly relatively to the member 11 and against the action of the interposed spring 32 to drive a staple down through the channel 16 and set the same with relation to the work being acted upon by the machine, as will be hereinafter described.

The staple clinching anvil -9 is-suitably secured within a depression in the top of the block 8 and the top of the anvil is made concave in cross section, as shown in Figs. 4, 5

and 6, so as to provide a channel'for the reception of the work to be acted upon by the machine, and so that the anvil will embrace the work when it is placed thereon. In Figs. 4, 5 and 6, I have shown a round piece of work, indicated at 40, upon and embraced by the anvil.

The channel formed by the concavity in the top of the anvil 9 extends forwardly and rearwardly beneath the staple guiding channel 16, 'and the concave top of the anvil is provided with two laterally adjacent grooves 41 which extend from side to side thereof, for receiving and guiding the legs of a staple during the clinching or setting thereof. These grooves 41 have entrance openings 42 which are located on the respective sides of the anvil and beneath and in registry with the legs of a staple when it is being moved downwardly within the channel 16, as shown in Fig. 5; and the grooves 41 follow the curvature of the concavity 'of the anvil and extend from their entrance openings 42, on the respective sides of a straight line connecting the openings, as clearly shown in Fig. 7, so that when the staple legs are forced into the grooves 41, the legs wi l be forced into lap-.

ping, lateral relation by the walls of'the grooves.

Slidably fitted within guiding openings in the block 8 are two parallel, vertically-extending,iwork-positioning parts or pins 43. These pins 43 are located on the respective sides of the anvil 9' in close proximity thereto, and the upper end portions of the pins, in the normal positions thereof, as shown in Figs. 1, 2, 3 and 4, extend above the top of 40 may be a number of pieces of an material around which the staple is to set for binding them together or it may be a single piece of material around which the staple is set for identification or other purposes.

The pins 43 have collars or flanges 44 formed thereon which slide in expanded portions 15 of the pin guiding openings in the block 8, and the pins 43 are maintained normally elevated, with their collars 44 bearing against the upper end walls of the ex panded portions 45 of the pin guiding openings by springs 46 which encircle the pins 43 between the lower end walls of such expanded portions and the bottoms of the collars 44, as shown in Figs. 4 and 5. It will now be understood that the pins 43 may be depressed against the action-of their springs 46 from the normal position of the pins, as shown in Figs. 3 and 4, to the depressed position thereof, as shown in Figs. 5 and 6; and that, thereafter, when the ins 43 are released, their springs 46 will e evate them to their normal position.

The inner sides of the work-positioning upper end portions of the ins 43 are provided with vertically-extending grooves 47 .which receive andare fitted to lateral extensions 48 of the anvil 9. The entrance'openings 42 of the staple-clinching ooves 41 of the anvil are located in the ateral extensions 48 of the anvil and also within the grooves 47 .of the ins 43, so that when the pins 43 are, elevate and while the are being depressed,the inner portions of t pins 43, at the sides of the grooves 47, will hold the sides of any. work placed between the pins, within the space between the entrance openings 42 of the staple clinching ves 41 to insure the straddling of the wor by a staple whose legs are forced into the clinching grooves. r

The top of the anvil 9 is made concave to receive and embrace the lower pgrtion of the work placed thereon, and the ttom of the nose 21 having the staple guiding channel 16 therein, is made concave, as illustrated, to receive and embrace the up 1' portion of the work placed upon the anv' 9, when the nose 21 is moved downwardly thereto, as shown in Figs. 5 and 6. g V

The space between the legs of'each staple acted upon by the machine is equal to or slightly in excess ofthe space between the work-positioning upper end portions of the pins 43 at the sides of the grooves 41 therein, so that the pins 43 will maintain the work, irrespective of its character, within a space which is not greater than the space between the staple legs.

.7 of the work-positioning The operation of the machine is as follows: a

When the machine is. in the normal position, as shown in Figs.'1 and 2, with the staple guiding nose 21 elevated above the tops ins43, the work which is to have the step e applied thereto, is placed between the pins 43 and upon the anvil 9. This done, the operatin bar 30 is depressed by hand, foot or ot or power against the action of the spring 36. During the initial downward movement of the bar 30, it moves the lever 28 and member 11 downwardly as a unit until thenose 21 engages and depresses the pins 43, and until the further downward movement of the lever 28 and member 11 as a unit is stopped by the engagement of-the concave bottom of the nose 21 with the top of the work 40 upon the anvil 9, the resistance of the spring 32 to movement of the lever 28 relativelyto the member 11 being greater than (the resistance of the springs 46 to the depression of the pins 43.

After the engagement of the nose 21 with the work 40 upon the anvil stops the downward movement of the member 11, the continued downward movement of the operating bar 30 moves the lever 28 downwardly relatively to the member 11 and thereby moves the bar 26 downwardly and moves the staple driver 25 downwardly within the channel 16 from its position therein as shown in Figs. 2 and 4, to its position therein, asshown in Fig. 6; and, during this downward movement of the driver 25, the bottom thereofengages the top of the foremost staple 14 of the row thereof and drives it downwardly through the channel 16 and drives the legs of the staple into the clinching grooves 41 of'the anvil 9 until the further downward movement of the staple is stopped by the crown thereof engaging the work upon the anvil. As the staple is thus driven "downwardly, it embraces the work 40 upon the anvil and the legs of the staple are directed by the walls of the grooves 41 to pass beneath the work laterally of one another and in lapping 'rela tion to embrace the lower portion of the work so that the staple is clinched or set around the work in a manner to completely encircle it and form a band surrounding the same, as shown in Fig. 8.

When the staple 14, having a straight crown, is thus clinched or set around the work, the concave lower end of the staple driver 25 will bend the crown ofthe staple, more or less, to conform to the curvature of the work. I

After the staple has been clinched or set around the work, the downward pressure on the operating part 30 is removed and the springs 32, 36 and 46 are permitted to raise ios fresh staple into the channel 16 by the action of the sprin 23.

If the vert1cal dimensions ofthe work placed between the pins 43 and u n the anvil 9 are sufiicient to prevent the epression of the upper ends of thepins 43 down to the level of the top of-the anvil 9, before the downward movement-of the nose 21 is stopped by its engagement with the work, the grooves 47 in the pins 43 serve as additional guides for the staple legs as they .pass' through the space between the bottom of the channel 16 and the entrance openings '42 of the clinching grooves 41, while the pins 43 prevent the lateral expansion of the work into the paths of the downwardly moving staple legs.

If desired the crown of the staple may be shaped, where the staple is made, to conform to the shape of the work with which it is to be engaged, and the bottom of the staple driver may be correspondingly shaped. I a;

- In Fig. 91 have shown a staple with a rounded crown 50 to fit upon round work,

and I have shown the staple straddling asimilarly shaped guiding bar 51 for guiding the staples into the channel 16 of the machine.

I claim:

1. In a staple setting machine, the combination' of a supporting frame, a staple 2. In a staple setting machine, the combi nation of a supporting frame, a staple clinching anvil, a member movable toward and from the anvil and provided with staple guiding means, a staple driver movable in the member, means operable to move the member '-to move its work embracing part into engagement with work upon the anvil and thereafter operable. to move the driver toward the anvil and yieldable work-positiom ing'parts on the respective sides of the anvil and adapted to be engaged and movedby said member when itis moved toward the anvil.

3. In a staple setting machine, the combi nation of a supporting frame, a staple clinching anvil, a member movable toward and from the anvil .and having a concave workembracing part and staple guiding means, a staple driver movable in the member, means operable to move the member to move its work embracing part into engagement with work upon the anvil and-thereafter operable to movethe driver toward the anvil, and

yieldable work-positioning parts on the re-' spective sides of the anvil and adapted to laterally out of .alinement and into lapping be engaged and moved by said member when it is moved toward the anvil. I

4. In a staple setting machine, the combination of a supporting frame; a concave, work-embracing, staple-clinching anvil; a

' member movable toward and from the anvil and having a concave work-embracing part and staple guiding means, a staple driver movable in the member, and means operable to move the member to move its work em-.

work-embracing, stap e-clinching anvil; a

member movable toward and from the anvil and provided with staple guiding means, a staple driver movable in the member, means operable to move the member to move its work embracing part into enga ement with work upon the anvil and therea r operable to move the driver toward. the anvil, and

yieldable work-positioning parts on vthe re-' spective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil. y

6. Ina staple setting machine, the combination of a supporting frame, aconcave, work-embracing, staple-clinching anvil; a member movable toward and from the anvil and having a concave work-embracing part and staple andguidin means, a staple driver movable in the mem er, means operable to move the membe r to move its work embracing part into engagement with work upon the anvil and thereafter operableto move the drivertoward the anvil, and yieldable workpositioning parts on the respective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil.

7. In a staple setting machine, the combi- I nation of a supporting frame, an anvil having laterally-adjacent grooves constructed to receive the legs of a staple and to direct them laterally out of alinement-and into lap ing relation, a member movable toward and fi'om the anvil and having a concave work-embracing partand staple guiding means, a. staple driver movable in the member, and means operable to move the member and the driver toward the anvil.

8. In a staple setting machine, the combination of a supporting ram'e, an anvil having laterally ad acent grooves constructed to receive the legs of a staple and to direct them relation, a membermovable toward and rom the anvil and provided with staple guiding 'means, a staple driver movable in the member, means operable to move the member and the driver toward the anvil, and yieldable work-positioning parts on the respective sidesof the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil.

9. In a staple setting machine, the combination of a supporting frame, an anvil having laterally adjacent grooves constructed to receive the legs of a staple and to direct them laterally out of alinement and into lap ing relation, a member movable toward and rom the anvil and having a concave work-embracing part and staple guiding means, a staple driver movable in the member, means operable to move the member and the driver toward the anvil, and yieldable work-positioning parts on the respective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil.

10. In a staple setting machine, the combination of a supporting frame; a concave, work-embracing, staple-clinching anvil having laterally adjacent grooves constructed to receive the legs of a staple and to direct them laterally out of alinement and into lapping relation. :1 member movable toward and from ing part and staple guiding means, a staple driver movable in the member, and means operable to move the member and the driver toward the anvil.

11. In a staple setting machine, the combination of a supporting frame; a concave, work-embracing, staple-clinchinganvil having laterally adjacent grooves and constructed to receive the legs of a staple and to direct them laterally out of alinement and into lapping relation, :1 member movable toward and from the anvil and provided with 'staple guiding means, a staple driver movable in the member, means operable to move the member and the driver toward the anvil, and yieldable work-positioning parts on the respective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil.

12'. In a staple setting machine, the combination of a supporting frame; a concave, work-embracing, staple-clinching anvil having laterally adjacent grooves constructed to receive the legs of a staple and to direct them laterally out of alinement and into lapping relation, amember movable toward and from the anvil and having a concave work-embracing part and staple guiding means. a staple driver movable in the member, means operable to move the member and the driver'toward the anvil, and yieldable work-positioning parts on the respective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil.

13. In a staple setting machine, the combination of a supporting frame, a staple clinching anvil, a member movable toward and from the anvil and provided'with staple guiding means, a staple driver movable in the member, a part operable to move the member toward the anvil and thereafter to move the driver toward the anvil, yielding means interposed between said part and said member, work-positioning parts on the respective sides of the anvil and adapted to be engaged and moved by said member when it is moved toward the anvil, and yielding means opposing the movement of said positioning parts by said member, the first named yielding means having greater resisting power than the second named yielding means.

14. In a staple setting machine, the com-- bination of a supporting frame, astaple clinching anvil, a. member movable toward and from the anvil and provided with staple guiding means, a staple driver movable in the member, means operable to move the member and the driver toward the anvil, vertically-movable work-positioning pins on the respective sides of the anvil and slidable in a part supported by said frame, and springs maintaining said pins normally elevated and against which the pins may be depressed by said member.

15. In a staple setting machine, the combination of a supporting frame, a staple clinching anvil, a member movable toward and from the anvil and provided with staple guiding means, a staple driver movable in the member, means operable to move the member and the driver toward the anvil, a shaft adjustably held in. said frame and provided with a block which supports said anvil and yieldahle work-positioning parts carried 7 by said block on the respective sides of the anvil and adapted to be engaged and moved by saldmember when 1t 1s moved toward the anvil.

16. In a staple setting machine, the com HARRY E. HICKS.

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