US1279002A - Staple forming and setting mechanism for shoe-button-attaching machines. - Google Patents

Description

I. F, REED.

STAPIE FORMING AND SETTING MECHANISM FOR SHOE BUTTON ATTACHING MACHINES.

APPLICATION FILED NOV-2B. IBIS.

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STAPLE FORMING AND SETTING MECHANISM FOR SHOE BUTTON AT TACHING MACHINES; APPLICATION FILE!) NOV-28, l9l6.

1,279,002, PatentedSept. 17, 1918.

4 SHEETSSHEET 2.

abtomnu J. F. REED. STAPLE FORMING AND SETTING MECHANISM FOR SHOE BUTTON ATTACHING MACHINES. APPLICATION FILED NOV. 28. 1916.

1 ,2? 9 ,002 Patented Sept. 17, 1918.

4 SHEETS-SHEET 3A I. F. REED.

STAPLE FORMING AND SETTING MECHANISM FOR SHOE BUTTON ATTACHING MACHINES.

APPLICATION FILED NOV-2B, I9I6.

1 279,902 Patented Sept. 17, 1918.

4 SHEETS-SHEET 4.

nrrnn STATES PATENT o moE,

JOE-IN I. REED, ,oi orrmvrwn, IOWA.

j srnrnn FORMING AND SETTING MECHANISM non sHoE-BUTroN-A'rrAoHING V r V MACHINES.

To all whom it may concern:

Be it knownthat I, JoHN FRANK REED, a citizen of the United States, residing at Ottumwa, in the-countyof Wapello and State 7 of Iowa, have invented new and useful lm V provements in Staple Forming 'and'Setting Mechanism for Shoe-Button-Attaching Machines, of which the following is a specification.

This invention relates to staple forming and setting mechanism for shoe button attaching machines, and one ofits objects is to provide simple, reliable and eflicient meanslfor'feeding a wire through the eye of abutton and cutting off a portion. there-;

of of a suitable length to form a staple, preliminary bending'thecut wire lengths into staple form while the button is held and clamped, and then clenching the'staple tov fasten the button to a shoe or like article.

A further object of the invention is: to provide a staple forming and setting mechanism of the character described which comprises a comparatively small number of parts of a type not liable to get out of order, and which includes means adapted to compensate for wear of the parts and to insure proper action thereofnnder all conditions of service, and which means also acts to allow theparts to have a yieldingaction to prevent injury thereto upon encountering a shoe improperly placed in positionor striking any other obstruction.

A still'fnrther ob ect of the invention is to provide for the positive feed of the wire under all normal conditions, while'preventme; any feed of the Wire at all times when.

a" button has not been fed to stapling po- 'sition.

"With these and other objects in view, the invention consists of the features of construction, combination and arrangement of parts hereinafter fully described and claimed,reference being had to the accompanying drawings in which Figure 1 is a front view of the head of a shoe button attaching machine embodying my invention. 7

Fig. '2 is atop plan view thereof.

' Fig. 3 is a view looking toward one side et the machine with partsfin section, and I showingfthe parts in normal position.

Fig. ifis a sectional elevation looking toward the oppositelside of themachine..

Fig. 5 is a verticallongitudinal section,"

Specification of Letters Patent. Patented Sept, 17, 1918 Application filed November 28,1916; Serial No,'133, 925. I

showing the parts in position at the comple tion of a staple forming action.

Fig.6 is a similarview, showing the parts in position 'at the' completion of the staple setting action. i V "Fig.7 is a horizontal transverse section on line 7-7 of Fig. 5, but with the parts in po-' sition in which they appear with the machine in normal or idle position, at which time the 'buttonfeed finger rests on a but ton in stapling position and thewir'e has been fed or' projected through the eye thereof. 7 i

Fig. 8 is a similar section showing the parts in staple forming position.

Fig, 9 is a similar view showing the parts as illustrated in'Fig. 6 in staple setting position. Y Q

Fig. 10 is a similar view illustrating the action of the parts in holding the wire feed lever from action when from any cause no button has been fed to stapling position.

Fig. 11 is a detail side elevation of the button feed lever and finger, showing in full and dotted lines the normal and extended throw of the mentioned parts.

FigJlQ is a detail perspective view of the stop bar and staple forming anvil and the. setting or clenching anvil. r

Fig. 13 is a perspective view of the wire" cutting and staple forming'die and the stapleclenching die in assembled relation.

. Fig. 14 is a similar view of the staple set-' ting or clenching die per 86. N V j V V Fig.;15 is an end view of the diesshown inFigilii; M f f V Fig. 16 is a perspective view of the wire feed lever.

Fig. 17 is a plan view'of thewire retain tcrslatent 1,232,841,datedduly 10, 1917'...

This type of'button feed mechanism em- 7 V bodies a button feed lever and finger having a desiredlcoaction with the staple forming and setting mechan sm and; which are dis- 7 closed herein, 'afurtherand more specific disclosureof'the button feedfmechanism be.-

7 ing unnecessary to a' full understanding of the presentfinventlon. I V

Referring to the drawings, 1 designates the head of the machine, which is suitably attached to a table or top-plate 2 which may be mounted in the usual manner upon a frame pedestal or column. 7

The head 1 supports the hopper 5 with which communicates and from which GX' tends a main guide or raceway 6, which ex tends at a downward and forward inclination therefrom for the gravitative feed of the buttons therein to the button retaining springs or detents.

The button feeding mechanism herein disclosed also includes an outside auxiliary.

. tion. I

A single pivotally mountedifeed finger 9 is provided for cooperation with both raceways for engaging and feeding the button forward to stapling position, and this finger is provided at its free end with a button receiving and engaging notch or recess 10.

In practice, suitable devices are provided for arresting the motion of the column of buttons or any single button in each guideway, so that the finger may engage and feed such button forward for the staple setting action.

The structure of these and other parts of the button feeding mechanism aredescribed and shown simply for the purpose of making the operation of the staple forming and setting mechanism clear, the button feeding mechanism specifically forming the subject matter of my copending application hereinbefore referred to and the parts thereof being mentioned only so far as they apply to this particular case.

The feed finger 9 is pivotally mounted upon a button feed lever 11 fulcrumed upon a supporting post 12 mounted on the head for swinging movement to move the finger forward along the button raceway.

The lever ispivotally mounted between its center and lower end, its longer arm forming a support for the feed finger and its shorter arm being provided with a pivot pin 13 which is journaled for rotation therein and provided with a transverse opening to slidably receive a fmotionetransmitting bar 14, carrying front. and rear coiled springs 15 and 16 inclosing the ends of said bar between suitable abutments and the opposite sides of the pin 13, whereby a yielding connection is ai'forded for advancing and T o the arm 19 is also pivotally attached the upper end of a main actuating or connection rod 22, whereby the bell crank lever is attached to a suitable main operating device, such as adepressible, spring lifted or retracted foot lever.(not shown),asis com-.

men with machines of thistype. r I

To thearm 20 is connected the lifting arm 23, of abutton lifting mechanism operating 7 in the hopper 5 for, the purpose of supplying buttons to the raceway 6, as set forthin'said patent, for the automatic supply of buttons"- to such raceway on each operative movement of-the machine. 7 T

The button delivery guide groove 8 is disposed in proximity to the staple setting anvil 2 1 which is carried by an arm 25 mounted on the head, said anvil being provided in its anvil face with a grooveor recess 26 of proper form to receive the ends of the staple during the setting action.

The grooves isformed betweena pair of parallel bars 26 and 27, which form a guideway for the staple cutting and forming member hereinafter described, and which guideway is covered at the'front by a plate 28 on which the base of the head of the button29 rests during the wire applying and staple forming action, said plate being provided with a slot 30 through which the button eye 31 projects into the delivery groove 8, the said slot and groove communicating with the space between the same and the anvil 24, in which the shoe-upper or other fabric 32 towhich the button is tobe atta'ched is inserted;

The-guide bar 26 is formed with a trans- V I verse opening 33 for the passage of the free end of the wire 34 across the groove 8 and through the button eye 31, which" free end of the wire is limited in movement by contact with the bar 27 and is adapted tobe' severed from the remainder of the wire for.

free endof a wire feed lever 36 under a guide plate 37 and "between a guide surface 38 and the tooth edge 39 of a'pivoted'feed dog 0r pawl 10, normallyheld in wire engaging position by a spring 111.; L The lever is arranged on. the outer of the bar 26 for. transverse swingingmovement toward and fromthe same, and the teeth of the dog 40-.are, so formed 7 as to v side i "ward movement for the succeeding feed action.

Between the lever 36 and the bar 26 is disposed a guide member 42 similar to the guide member 37, said guide member 42 i being fixed to the head 1' and carrying :a

springpressed retaining dog 43 similar in construction to the dog 40, the dog 43 being adapted to move forwardly with and permit of the feed motion of the wire while holding it from backward motion.

7 The lever 36 is pivotally mounted at 44 uponthe head for swinging movement as described and has its rear end bent inwardly to form an arm 45 provided with a depending lug 46*formed with an'opening 47 to slidably receive a rod 48, which ispivotally attached at its forward end to the bodyof' the bell crank lever 17 as indicated at 49.

Surrounding said rod 48 are coiled springs 50 and 51, the spring 50'beingdisposed between the lug 46 and anabutment upon the pivoted end of the rod, and the spring 51 being disposed between the lug and an abutment 52 at the rear end of the rod.

When the rod 22 is drawn downward the rod 14 is pulled downward and forward and tensions the spring 16, thus exerting a pull upon the lever 11 to swing the finger 9 ackward on its retracting motion.

On the downward movement of the rod 22 the segmental portion 18 of the bell crank 17 is moved forwardly, thereby compress ing the spring 51 for forcing pressure against the lug 46 toswing the wire feed lever outwardly on its retractive'motion.

When the rod 22 moves upwardly or is retracted upon the release of the foot lever by the action of the retraetingspring of said lever,,tl 1e springs 15 and 50 act to project the button feed finger and wire feed lever on their feed motions. V

The springs 15, 16, 50 and 51 provide, 1n

connection with rods 14 and 48, yielding pressure, lost motion 7 connections between V the bell crank lever and the button feed and the wire feed levers, whereby any irregulari-.

ties of motion due to wear are compensated for and taken up, and whereby a full operating motion of the bell crank lever is permitted to take place and the button and wire feed levers permitted to have certain compensating actions at times when no button has been fed forward to stapling position by the button feed finger from a raceway and no wire is required to be fed up as hereinafter fully described. 7 V 7 The staple forming and setting 'mech anismproper comprises a staple cutting and forming member '53'and a staple driving or setting die 54, together with certain co-' operating parts, as hereinafter :specified.

The d1e or ram 53 comprises an oblong rectangular block mounted for reciprocation 1n the guideway formed between the bars 26 and 27, while the die or ram 54 also'comprises a block of oblong rectangular form and of less width but greater length than the die 53. 7 V

The die53 is bifurcated at end to form a vertical slot 55 and is provided in its upper surface with a longitudinally extending groove 56 communicating at its forward end with said slot, and in which the die 54' is reciprocably mounted, said die 53 being provided in the'side walls of the slot and groove with staple receiving and guide grooves 57, and the die 54 having longitudinally extending ribs 58 movable in said-grooves 57.

its forward of the staple driving and setting die being adapted to register with the surfaces 59 and 61 of the die when said staple'driving and setting die is fully moved forward.

The inner edge portions of 63 are cut away at an oblique angle, as shown at 66, and provided with grooves which constitute in ward continuations of the groove 64, to adapt said surfaces to have a specific action in setting the staple.

"In the lower face of the die 54 are formed recesses 67 and 68 adapted for engagement with teeth 69 and 70. on the segmental portion of the bell crank lever 17, which acts as a gear element, and whereby the diemember 54 is adapted to be moved forwardly in two stages or steps.

Guide rods 71 areal-ranged on opposite sides of the die member 54 and are slidable longitudinally in sockets 72 in the die member 53, and coiled springs73 are disposed and tensioned, on said rods between abutments thereon and the rear end of the die member53, rthe die member 54 is provided with a shoulder 75 which'fis adapted to engage aicross pin 76 on the die member 53 placement, and said surface 7 5 also acts upon the cross pin 7 6 to limit the? rear movement die member V to hold said die members from relative the with therear end of the die member 53, and" the gear "tooth 70 with the notch 68, or from being carried forward during its further forward movement by the springs 7 3.

The die member 5a is adapted to be moved forward independently of the die member 53 during the button setting action or after the die member 53 has completed its forward movement, the springs 7 3 being further tensioned and compressed against the rear end 7 of the said die member 53 as the die member 54:. is carried forward'to complete the setting action.

The action of the springs 7 3 affords variable forward movement to the die member 53,, also holds fabrics of varying thicknesses during the setting action, which are interposed between the forward end of the die member 53 and the face of the clenching anvil 24, such operation of the die members and springs occurring on each working stroke of the bell crank lever 17. 7

A button having been fed forward in the guideway by the button feed finger to stapling position, as shown in Fig. 3, it will be understood that upon the depression of the operating treadle the arm 19 of the bell crank lever will be drawn downward, thus transmitting a backward retractive motion to the button feed lever and finger, as shown in Fig. 6.

After the die member 53 has been retracted beyond the passage 33, the wire feed lever 36 feeds the wire through the passageway 33 and across the guideway between the bars26 and 27 in position to come between the ends of the dies and a bending anvil 77 upon the upper inclined end abutment surface 7 8 of a vertically movable anvil and stopbar 7 9 normally held projected upward in the path of the die members and between the same and the anvil 24 by expansive action of a spring 80.

The anvil 77 of this bar has its anvil sur- In the preliminary forward movement of the reciprocating dies the corner edge of the adjacent surface 59 0f the die 53 cuts off the projected portion of the wire from the body of the wire, which projected portion of the wire has been threaded or passed through the eye of the button held in stapling position by the button feed finger resting thereon and the eye of the button resting against the surface 81 of the anvil? 7 and then as the die member 53 continues its forward movement the ends of the wire are engaged and held in the grooves 60 and forced forward by the die 53 against 'the anvil 77, by which the wire is bent into staple form and received in the grooves 57 of the die 53by the anvil 77, which enters he slot 55 of said die 53. V

At this stage the die 53 moves forward on its second step and its sloping surface 61. en: gages the sloping surface 7 8. of the block 19 and forces said block downward, as. shown in Fig/6, out of the path of the die member 53 and 54, at which time theforward, end

' of the die 54; will have come into position to engage the formed gstaple, asshoWnin' Fig. 8.

The fabric 32 having been "previously placed in position for the setting action. the

continued forward movement ofthe dies 53 and 5 lwill result in the end of the die being brought into contact with the fabric 7 so as to clamp the same against'the anvil 24-, the die 5st forcing thev ends ofthe staple through the fabric and its surfaces cooperating with-the groove 26 in the anvil'24 to bendthe ends of the staple inwardly and clench the same against the fabric :w iile the forming surfaces of the die 54 contract the bight of the staple about the eye of the butt0n,as shown in Fig. 9, whereby the button will be set or fastened to the fabric. f

The operating treadle then being released, the retracting springs will return the parts to normal position and the finger 9 will again move downwardly and forwardly, its notched end engaging and feeding a button forward to stapling position against the surface 81 of the block 79 which has again been'moved by its spring 80 upward into the path of the dies. 7

It is desirable to provide some means for preventing the wire feed motion of the wire feed lever when through any cause a but ton has not been fed forward to stapling V in dotted lines an extended range'of movement when no button is in" stapling position, or in position to arrest the forward motion of the feed finger and lever.

This extended forward movement of the feed lever and finger is permitted by the range of movement allowed by the spring 15, which, when the finger engages a but ton, is compressed to a slightly greater degree than when the finger is permitted to have an abnormal travel, thus avoiding liability of injury to or derangement of the parts under such conditions.

When the lever 11 moves forwardly to its normal degree, thearm 82 is permittedto pass said lever 11 thus permitting the wire feed lever'36 to fully feed the wire forward,

but when the lever 11 moves forward to an abnormal degree, said lever 11 comes into posit-ion to be engaged by the surface 84 of the arm 82, so that it acts as a stop to prevent the lever 36 from a forward feeding movement of the wire into the guideway between the bars 26 and 27, thus preventing the formation of a staple when no button is in stapling position.

The stop motion of the lever 36 is permitted by reason of the elastic lost motion connection formed by the rod 48 and spring 50, which spring, when the full travel of the lever 36 i arrested, will be compressed to a slightly greater degree than when the lever has its full movement, so that the bell crank and stapling dies are permitted to have a full range of travel without obstruction or the imposition of strains thereon.

It will be observed that the elastic lost motion connections between the actuating bell crank and the button and wire feed means also insure the compensating action of the character described in a smooth and easy manner, and without jar or jerk even when variations of motion occur due to wear of the working parts.

By the present structure it will be evident that the button feed lever serves directly the function of a stop for limiting the motion of the wire feed lever under the condition men tioned without the addition of part or parts, to which extent it forms a part of the staple forming and setting mechanism.

' It will be evident, of course, that my improved staple forming and setting mechanism may be employed for general purposes in fastening buttons and the like to various kinds of fabric and that it may be employed in conjunction with button machines in which the buttons are fed either automatically or by hand to the machine, hence the invention is not limited to its use in connection with any particular type of feed mechanism, except as set forth in the claims.

It will, of course, be understood that while the Structure shown is proper, any equivalent construction, falling within the scope of the appended claims, may be employed without departing from the spirit or sacrificing any of the advantages of the invention.

I claim 1. A button attaching machine comprising a button feeding lever having a normal movement when a button is in position to be fed and an extending movement when a button is not in position to be fed, a wire feeding lever having a projection thereon for engaging the button feeding lever when the same is in abnormal position to pre vent the wire feeding action, staple forming and setting means, and actuating means for the parts.

2. A button attaching machine comprising a vertically arranged button feeding lever, means for rocking the same, a button engaging member carried by said lever, a horizontally arranged wire feeding lever, means for rocking the same horizontally, a right angular projectioncarried by said wire feeding lever and adapted to contact with the button feeding lever when the button is not in position to prevent movement of said wire feeding lever, staple forming and setting means, and operating means for actuating the parts.

3. In abutton attaching machine, the combination of a staple setting die, a wire feeder, a button feeder operative in the absence of a button to arrest the motion of the wire feeder, a staple forming die movable toward and from the setting anvil, a staple forming anvil movable into and out of the path of said forming die, a staple setting die slidably connected with said forming die, motion transmitting springs connecting said dies, and a. bell crank lever in gear with the setting die forimparting motion thereto, and sliding spring controlled lost motion connections between said bell crank lever and the wire and button feeders.

In testimony whereof I aflix my signature.

JOHN F. REED.

Copies of thin patent may be obtained for five cents each, by addreuing the Gomminioner of Patent,

Washington, D. G.

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