US2524120A

US2524120A - Heel attaching machine

Info

Publication number: US2524120A
Application number: US47459A
Authority: US
Inventors: Clarke Thomas Baggott
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1947-09-24
Filing date: 1948-09-02
Publication date: 1950-10-03
Anticipated expiration: 1967-10-03

Description

T. B. CLARKE HEEL ATTACHI'NG MACHINE Filed Sept. 2, 1948 oct. 3, 195o In ven for Thomas B. Clar/Y Uct. 3, 1956 T. B. CLARKE HEEL ATTACHING MAcHINE 4 Sheets-Sheet '2 Filed Sept. 2. 1948 [nvenmo B his Patented oct. 3,1950 A 2,524,120

UNITED STATES PATENT oFFlCE 2,524,120 HEEL ATTCHING MACHINE Thomas Baggott Clarke, Leicester, England, as-

signor to United'Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application September 2, 1948, Serial No. 47,459 In Great BritainSeptember 24, 1947 This invention relates to heel attaching malines. In placing the pricked heel 46 upon the chines and is illustrated herein. as embodied in heel support 26, which corresponds to the heel,- a machineof the general type disclosed in United support best shown in Fig. 3 of said Letters States Letters Patent No. 2,391,543, -granted Patent 2,391,543, the breast of the heel is placed December 25, 1945, upon an application led 'in against a breast gage or abutment 42 and inner the name of Joseph W. Carr, et al., provided with and outer pairs of levers, fingers or clamps 44, an improved heel holder. v 46 (Figs. 1, 2 and 5) then held in their open posi- The present invention which is fully disclosed tions away from the heel are released by mechain the following description and claims consists nism which will be hereinafter described, tof in the novel features hereinafter described, ref- 0 center the heel upon the heel support 26 and erence being had to the acco-mpanying drawings to hold the breast of the heel against said heelv which show one embodiment of the invention breast gage 42. selected for the purpose of illustration. When the heel support 2 6 is in its heel re- In the drawings, ceiving position in which it is shown in dash t Fig. l is a iront view of a portion of an op-` 15 lines (Fig. 1) passages 48 of a nailing die or erating head of the machine" disclosed in said bloclirl, which passages have previously received Letters Patent No. 2,391,543 provided with 'an a load of nails 56 from a foot plate 52 of they improved heel holder; y nail supplying mechanism 22 and have a pat- 1 Fig. 2 is a plan view on line II-II ofFig. `1f tern similar to that of awl holes 54 prickedin showing in heel attaching position the heel holder" 0 the attaching face of the heel, are positioned,l of the illustrative machine; beneath the shoev support 2li.l When a one- Fig. 2a is a section on line'IId--Ilat of Fig; 2; revolution clutch" (not shown) is tripped in re- Fig. 3 shows in front elevation manually actu: sponse to .depression of a treadle (not shown), ated portions of mechanism for operating centern the machine Operates'thrOugh a lcycle causing ing iingers and clamps of the heel holder; 2fig-,the shoe supporti 20 AVto be Vlowered to force a Fig. 4 is a vertical section on line IV--IV of fitted heel seat 56 of the shoe. which 'is positioned Fig. 1 showing mechanism for automatically upon andsecured Vto the support 26, against. thefy swinging the `fingers of the heel holder away upper surface 58 ofthe nailing die 46. The shoe from a heel positioned in said holder preparatory is thus held against the nailing die 46 while a' to raising the heel holder to force said heeliwith 301piston 66 slidable in a cylinder 62 of the nail i final heel attaching pressure against the heel driving mechanism 28 is forced upward by a seat of a shoe which is mounted upon a shoe plunger 64 (Figs. 1 and 4) to operate a plurality` support and into which nails have been driven of drivers 66 which t slidingly in the passages i and beyond which the nails project; 48 of the nailing die 49 and drive the nails then Fig. 5 is a view on line V-Vof Fig. 4; and 3s in said passages part way into the heel seat 56 Fig. 6 is a section on line VI-V'I'of Fig. 5; of the shoe. The nails 56which are partly driven The illustrative machine is shown and deinto the heel seat 56 of the shoe 2i mounted upon scribed as embodied in the heel attaching mathe support 26 bythe drivers, are left projectchine disclosed in said Letters Patent2,391,543r` ing from the heel seat of the shoe as shown and comprises a support or holder 26 "(Fig. 1) 4o, in Fig. 1 and are arranged in the same design" for a shoe 2i mounted upon a last 23 and lnailY as'the awl holes 54 in the attaching face of supplying mechanism 22 which are mounted upon the heel 40, the heel upon the holder 26 and" the upper part of a mainframe (Fi'gs.- 1, 2'v the shoe upon the support 26' being moved toward" and 4) of the machine, and a heel support' or each other during a second cycle of operation` holder 26 and nail driving mechanism 28` which 4550i the machine to cause the heel to be forced are secured by screws 30, 32 (Fig. "1) respectively y against the heel' seat of the shoe with the nails toa carriage 34 movable on wheels 36'along a forced into the respective'awl holes of the heel.i:

track 38 secured to and'forming part of the During the las't part of the first cycle of op-*L main frame of the machine. Ay heel 40 (Figs. 1` eration o1" the machine the shoe support 20,' and 2) which has been' pricked by awls .in a scgtogether 'with the shoe 2l which is clamped toy suitable pricking machine (not shown) is posisaid support and into the heel seat 56 of which tioned upon the heel support 26 whensaidV support the nails 59 have been partially driven, is moved i is in a heel receiving position inA which itis-v to the 'raised position shown in Fig. 1, in whichshown in dash lines on Fig. 1, awayY fromfa heel.1 posi-tion it comes to vrest spaced a considerable attaching position in which it is Shown in fullsqdistance from the nailing die 49. Afterplacing-j the pricked heel 40 upon the support or holder 26, the carriage 34, to which the heel holder and the nailing die 49 are secured, is moved to the right, as viewed in Fig. '1, against a stop 63 on the main frame 24, by the use of mechanism Such as disclosed in detail in said Letters Patent No. 2,391,543, operated by a crank l0, to its position shown in Fig. 1, the heel holder then being positioned beneath the shoe support 20 and the nailing die 49 being positioned beneath the foot plate 52 of the nail supplying mechanism 22. When the heel 45 is thus positioned the awl holes 54 in the attaching face of the heel are in alinement with corresponding nails 50 projecting from the heel seat 56 of the shoe 2| mounted upon the shoe support 20, the construction and arrangement being such that when the shoe is moved downward with the support the nails v enter the awl holes in the heel.

The heel support 26 comprises a two-part table 12 (Figs. 1, 2, 2a, 4 and 5) having an upper surface 14 (Figs. 2 and 5) on which the heel 40 is positioned attaching face up, -the breast of the heel being in engagement with the breast gage or abutment 42 which is mounted upon a pivot pin 'I6 (Fig. 2) secured to the table 72. Secured to a sleeve '18 (Figs. 2 and 2a), rotatably mounted in the table l2, and formed integral with a stud 80 coaxially arranged with the sleeve and rotatable in a bore 82 (Fig. 2a) of the sleeve are the outer and inner pairs of levers or iingers 46. 44 which have, rotatably mounted in their forward ends, rolls 84, 86 (Fig. 2) constructed and arranged to be forced by mechanism hereinafter described against opposite sides of the heel to .center said heel and to hold it in place against the breast gage 42. Formed integral with the sleeve 18 and the studs 88 are equalizer arms 9B, 90 respectively (Figs. 2, 2a and 5) which are geared for equal and opposite movement, the ngers 44 and 4E being constantly urged toward their closed positions by springs 82, 94 (Fig. 2) forward ends of which are xed to studs carried by the table and rear ends of which are attached to the outer ends of extensions of said arms. When there is no heel in the machine inward movement of the inner arms 44 under the action of the spring 94 is limited by mechanism which is hereinafter described and comprises a stop screw 96 (Figs. 2 and 4), inward movement of the outer arms 4E acted upon by the spring 92 being limited by the engagement of the righthand arm 46 as viewed in Fig. 2 with a depending stop lug 98 (Fig. 2) on the right inner arm 44.

The right equalizer arm 90 as viewed in Fig. 2 has pivotally connected to it a link a forward end of which is pivotally connected to the right end of a lever |94 (Figs. l and 2) fulcrumed on a pivot pin |06 (Fig. 2) secured to the table l2. Pivoted upon a pin |08 (Figs. 2 and 3) carried by the lever |04 and sliding in a bifurcated portion of said lever is a hand knob or latch H0 (Figs. 1, 2 and 3) which is constantly urged clockwise as viewed in Fig. 3 by a spring H2 housed in a recess ||4 of the lever and engaging the knob. Pivotally connected to the knob H0 is a latching pin ||5 (Figs. 2 and 3) which slides `United `States Letters Patent No.

hereinafter described. When it is desirable manually to open the fingers 44, 46 the knob l!!! is drawn forward and released, rearward movement of the lever |04 and accordingly the closing of said fingers actuated by the springs 92, 94 being prevented by engagement of the pin H6 with a shoulder |22 (Fig. 2) on the table.

The heel holder 25 comprises a platform |24 (Figs. 1, 2, 4 and 5) whichV has a depending plunger |26 slidingly fitting in a vertical guidevway |28 (Figs. 1, 4 and 6) of a pedestal |30 of the holder and which has in its upper face an vundercut groove |32 in which ts a complemental depending portion |34 (Figs. 4 and 5) of the table '12, said table being held against movement lengthwise of the groove by a pin |35 (Figs. 2 and 5) which is carried by the platform |24 and the inner end of which fits in a recess |38 in the depending portion |34 of said table. The pin |35 may be manually removed from the recess |38 of the table 'l2 preparatory to changing tables when it is desired to operate upon another type of work. In a machine such as disclosed in United States Letters Patent No. 2,480,905, granted September 6, 1949, on an application led in the name of Thomas B. Clarke et al., which machine has a pricking unit, a pin (not shown) corresponding to the pin |39 may be automatically withdrawn from a depending portion of the table when the heel holder arrives at a pricking station preparatoryto automatically moving vthe table forward to facilitate placing the heel to be operated upon in the machine.

Threaded into the lower end of the depending plunger I 25 of the platform |24 is a screw |40 (Figs. 1 and 4) having a head |42 which normally engages an inturned iiange |44 at the lower end of the guideway|26 of the pedestal |39, the heel holder 26 being supported through said screw which may be initially adjusted in the depending plunger |25 of the platform |24 in accordance with the height of the heel to be attached to the shoe.

The shoe support 20 which is substantially identical with the shoe support disclosed in 2,259,568, granted October 21, 1941, on an application filed in the name of Thomas A. Kestell, et al. comprises a jack post |48 (Fig. 1) which is pivoted upon a slide (not shown) movable forward and rearward in a guideway (not shown) at the lower end of a pressure plunger (not shown). The shoe 2| mounted upon the last 23 is placed right side up and toe end forward on the jack post |46 and is slid rearward into a U-shaped band |48 which enters the rand crease of the shoe and cooperates with other mechanism (not shown) to position and clamp said shoe in the support 20 as shown and described in said patent.

After the machine has completed the first of its two cycles with the shoe 2|, into the heel seat 56 of which the nails 50 have been driven, in its position shown in Fig. 1 above the nailing die 49, the operator places the pricked heel 40 on the heel holder 26 then in its dash line position shown in Fig. 1 and rotates the hand crank 10, the operation of which is described in detail in said in a bore H8 of an upstanding lug of the lever Patent 2,391,543 to cause the carriage 34 to be moved to the right against the stop face 59 inv the main frame to a position in which the heel holder 2B is in its operative position beneath the shoe support 20. When the heel 40 is thus positioned the awl holes 54 in the attaching face of the heel are positioned directly below the nails 50 respectively, which extend from the heel seat 5 ISG-.of the-shoe. heel is. engaged by thefngers. 44, 45 during upward.U movement of the heel with the. shoe to which. it has been attached as a result of the spanking on operation, the. heel is in danger of becoming marked. Accordingly, it is desirable vthat the fingers 44, 46` be spread aparthefore the heel, after its attachment to the'shoe, shall' be drawn out of the ngers. With Vthe above consideration in view there is slidable in a horizontal bore |50 (Figs. 2 Yand 4) of the table 12 the above-mentioned rod |52, the head of which is constructed and arranged to be engaged by the stop screw 96. The stop screw is threaded into awdepending lug (Fig. 2) of the lever |04, said rod, through mechanism which will be described presently, being slid forward to operate the lever |04 and accordingly to cause the'lngers 44, 461:0 be opened in response to mechanism actuated by upward movement of the plunger 64.

Mounted upon a pivot pin 205 carried by a boss 206 of the pedestal |30 is a multiarm lever 208 comprising an arm 2|0 carrying a roll 2 |2 which is constantly forced against the face 204 of the cam slide |92 by a spring 2|4, forward and rear ends of which are attached to studs secured to the pedestal and to the lever 293 respectively. The lever 298 also comprises an arm 216 which extends upward to a position in front of an arm 2|8 of a lever 220 which is pivotally mounted upon a pin 222 carried by the bracket |68 and into which is threaded a screw 224 in engagement with the slide |12, clockwise rotation of the lever 220 under the action of the spring |16 being limited by the engagement of the arm 2|8 of the lever with a stop plate 226 secured by screws 228 to the bracket |68.

During a second cycle of operation of the machine the shoe support 29 then in the position shown in full lines (Fig, l) is lowered forcing the nails 50 in the heel seat 56 of the shoe into the awl holes 54 of the heel and moving said As :above explained, when the iV shown in'Fig. 4 upon the cam slide |92.

6 heel seat Yinto: engagement .with the. attaching face A58 ofthe heel. As idisclosedin said Letters Patent 2,391,543, aszthe shoe support Y20 is loweredraV toggle (not shown) is straightened causing a stud 230 secured 'to the plunger 64 which isv operatively connected to said toggle, to be raised prior Vtothe engagement of a face 232 of the plunger with the nut |42 and accordingly before forcing the-'heelx40 with heavy pressure against the heelseat 56 of theshoe.

Upward movement of the stud 230 together with the plunger 64 raises thecam slide 92 along the guideway |88 causing the multiarm lever 2 I0 to swingk clockwise as viewed in Fig. 4 thereby effecting counterclockwise movement of the lever i220 and upward. movement of theslide |12 against theaction of the spring |16. As the slide |12 is raised the bell crank lever |18 forces the `rod |52 forward thereby swinging the lever |04 counterclockwise as viewed in Fig. 2 against the action of the springs 92, 94 causing opposite pairs of Aiingers 44, 49 to swing outward away from the heel, vthe pin l5 of the hand knob |10 operatedby the spring I2 moving in front of the shoulder |22 of the table 12 as the lever |04 is swung counterclockwise, to hold said lingers away from the heel.

After the application of final clamping pressure between the shoe 2| and the heel 40, the shoe support 20 and the heel support 26 are raised and loweredrespectively, Vthe shoe to which the heel has been attached thenbeing removed from the shoe support.

During upward movementof the cam slide |92 the tumbler 202.is prevented from rotating clockwise as viewed in 4 by a face 234 of said slide, said tumbler when Ythe slide is fully raised being elevated .above the roll 2| 2. When the cam slideV |92 is ,lowered by the action of the springV |94 the tumbler 202 rotates idly counterclockwise upon `the pin 200, thus allo-wing the cam slide to be movedV downward. When the tumbler 202 has moved toa position below the roll 2| 2 ,it swings back to itsoriginal position If desirable the tumbler 202 may be discarded and the cam faceL 204 of the cam slide |92 built out to replace .said tumbler, such a construction being satisfactory but necessitating a return spring A vstronger thanthe illustrated spring |94.

When the shoeto which theheel has been attached has been removed from the shoe support 2!! the operator by the use of the hand crank 10 moves the carriage 34 to a position in which the heel holder 29 secured to the carriage is in its dash line position illustrated in Fig. 1 and in which the nail driving mechanism 28 is arranged below the shoe support 20 preparatory to placing another heel in the heel holder and driving another group of nails 50 into the heel seat 56 of the next shoe to which a heel is to be attached.

Although the invention has been described with reference to the machine disclosed in said Batent 2,391,543 it will be understood that the nails 50 may be driven into the heel seat 56 of the shoe by the use of a separate machine, in which event the heel holder 26 will be permanently positioned below the shoe support 20. Moreover the invention has general utility in various types of machines for attaching heels to shoes such, for example, as machines in which heels are attached by nails driven from the inside of the shoe or in which heels are adhesively l attached to the shoe.

`Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. In a heel attaching machine, a heel holder, means comprising clamps for positioning a heel upon and securing it to the holder, a support for a shoe, said holder and support being relatively movable to cause the heel upon the holder and the heel seat of the shoe upon the support to be forced against each other, and means movable in timed rela-tion to relative movement of the support and the holder for moving the clamps away from theheel before final heel attaching pressure is applied between the heel and the heel seat of the shoe.

2. In a heel attaching machine, a heel holder, means comprising clamps for positioning a heel and securing it to the holder, a support for a shoe, said holder and support being movable to' Ward each other to cause the heel upon said holder and the heel seat of the shoe upon the support to be forced with heel attaching pressure against each other, and means movable in timed relation to movement of the holder toward the shoe support for moving the clamps away from the heel before nal heel attaching pressure is applied between the heel and the heel seat of the shoe.

3. In a heel attaching machine, a holder for a heel, a breast gage carried by the holder, clamps mounted for engagement With opposite sides of the heel to center said heel upon and to retain it in the holder, a holder for a shoe, said shoe holder and heel holder being mounted for relative approaching movement to force together with heel attaching pressure the heel and the heel seat of the shoe, said heel and shoe holders being kmounted for relative movement of separation preparatory to removing the shoe and its attached heel from the machine, and means movable in timed relation to relative approaching movement of the heel holder and the shoe holder for moving said clamps out of engagernent with the heel before nal heel attaching pressure is applied between the heel and the heel seat of the shoe.

4. In a heel atta-ching machine, a holder for Y their closed positions, a holder for a shoe, said heel and shoe holders being movable toward each other to force against each other With heel attaching pressure the attaching face of the heel and the heel seat of the shoe, means movable in timed relation to movement of one of the holders toward the other for moving against the action of said resilient means said fingers to open positions spaced from the heel before final heel attaching pressure is applied between the heel and the heel seat of the shoe, and means for automatically locking the ngers in their open positions, said last-named means being manually releasable to cause the fingers to be moved by said resilient means to their closed positions.

5. In a heel attaching machine, a support for a shoe, a pedestal constructed and arranged to be moved to and from an operative position adjacent to the support, a platform, a table for supporting a heel to be attached to the shoe, said table being removably supported upon the platform, means comprising iingers movable from open positions away from the heel upon the table to closed positions in which they locate said heel on and secure it to the table, said support being movable toward the table to force a fitted heel seat of the shoe on said support with initial pressure against the attaching face of the heel upon the table, said platform being movable in said pedestal to force the attaching face of the heel mounted upon the table with secondaryy =pressure against the heel seat of the shoe, and

mechanism, portions of which are independent-Y '1 ly movable with the platform and the table respectively, said mechanism being operativein timed relation with the platform to move the ngers prior to application of secondary pressureof the heel against the heel seat of the shoe to their open positions away from the heel and to retain said fingers in said open positions.

THOMAS BAGGOTT CLARKE.

REFERENCES CITED The following references are of record in the l file of this patent:

UNITED STATES PATENTS Name Date Reardon Mar. 24, 1942 Number