US1700233A - Wood-heel-turning machine - Google Patents

Description

Jan. 29, 1929.

V A. A. MCCANN ET AL woon HEEL TURNING MACHINE 2 Sheets-Sheet l Filed Nov. 9, 1925 Jan. 29, 1929.

A. A. MCCANN ET AL WOOD HEEL TURNING MACHINE 2 Sheets-Sheet 2 Filed Nov. 9, 192,5

Cil

Patented Jan. 29, 1929.

YUNITED STATES PATENT OFFICE.

ARTHUR A. -MCCANN AND CHARLES STOTZ, OF ST. LOUIS, MISSOURI, ASSIGNORS TO DIAMOND WOOD HEEL 6b MFG. COMPANY, OF ST. LOUIS, MISSOURI, A. CORPORATION OF MISSOURI.

WOOD-HEEL-TURNING MACHINE.

implicationv led November 9, 1923. Serial No. 673,674.

This invention relates to machines for shaping wooden heels.

In the process of shaping wooden heels.` the heel blank, which usually has the breast portion already formed, is clamped in a support or jack and presented to a rotating' cutter. The jack is moved with respect to the cutter and is guided during such movement in such a way as to give the heel the proper contour. In certain types of machines each side of the heel is presented to the cutter separately in successive ojlierations. It `is important in forming wooden heels and particularly in the case of heels for womens shoes, where the top is comparatively7 small, that both sides be formed alike so that the finished heel will be truly symmetrical.

In the types of machines at present in use, the guides which determine the movement oit the jack in shaping` the heel must be carefully formed so as to insure the saine movement for shaping both sides in order that the heel may be symmetrical. This requires that before the machine can be put into productive operation the guides will require a considerable amount of liling or grinding so as to shape them in the desired manner.

One of provide a heel forming machine which may be adjusted independently for forming the two sides of the heel so as to insure cutting;` the heel symmetrically on both sides.

Another object of this invention is to provide such a machine in which the guides controlling the jack may be adjusted both with respect to the total movement of the jack and also .separately with respect to each hall' movement so as to orm symn'ietrical heels.

Further objects will appear from the detail description taken in connection with the accompanying drawings, in which:

Figure 1 is a plan view ol a heel forming machine embodying this invention;

Figure 2 is a front elevation of the same;

Figure 3 is a section on line 3-3, Figure 1; and

Figures 4t and 5 are outlines showing symmetrical and unsyn'imetrical heels.

Referring.;v to the accompanying drawings, 1 designates a frame upon which the machine is mounted and which may carry a table or trays or the like for holding a supply of unfinished and finished heels, the operator drawing on the supply ot unfinished heels and returning finished heels to their proper i arm 12.

the objects of this invention is to` tray. This trame may also carry the driving, motors tor the cutters. These motors are not shown on the drawings.

Nlounted on the frame 1 a plate 2 which carries the moving` parts of the machine. This4 plate has mounted thereon bearings 3 and d in which the spindles 5 ot the two cutters 6 are journalled. The spindles 5 are each provided with a pulley 'T adapted to accommodate a belt 8 suitably driven from a suitable motor, not shown. The cutters 6 are thus driven at a high speed and rotate on a vertical axis. The frame 2 also carries bearings 9 and 10 which sup porta vertical spindle 11 upon which a swinging arm 12 is arranged to pivot. The arm 12 has mounted therein at the extremity thereof a vertical rod 13 which adapted to slide androtate in the This-rod carries at its upper eX- tremity a support or jack 14 provided with a suitable clamp 15 for holding the heel blank 16. The rod 13 is provided at its lower end with an arm 17 rigidly connected thereto which carries a horizontal roller 13'or a 'purpose which will be hereinafter described. The support 1li is really pivoted at 19 on a head 2O rigidly iixed to the upper end of' the rod '3.3. The support 14 also carries a roller 21 similar to t-he roller 18.

Mounted on theirame 2 near its lower end is a pair of side brackets 22 ext-ending;.tor-y wardly from the plate 2 andinwardly toward each oilier. The ends ot these bracl-ets are connected by a cross-bracket Q3 on which are pivoted at 24 a pair out' guides 25. The Lguides exten d straight across the iront of the machine opposite the cutters 6 and have curved ends 2G beyond the cutters. The guides are symmetrical with respect to their division point 270 opposite the middle of the machine. The outer ends 26 ot these guides are supported by adjustable links 2T connected at 23 'to the brackets Q2. The guides are supported by the pivot 211 and the links 27 and may be adjusted. by adj us.- int;` said links', to any desired degree of inclination from iront to rear. These guides 25 are adapted to support and guide in its movement the roller 13 on the lower end ot the rod 13.

Adjustably mounted on the plate 2 and above the brackets 22 is a similar pairof brackets Q9 connected by a cross-bracket 30 on which are pivoted at 31 a pair of upper guides 32. These upper guides are similar to the lguides 25 and are adjustably `supported at their ends by links 33 adjustably connected to the bracket-s 29. These. guides 32 are also divided at their middle point 34 so as to be separately and independently vadjusted. he upper guides 32 are adapted to support and guide in its movement the roller 21 on the heel blank support 14A. The brackets 29 have a slotted connection 35 with the. plate 2 so that they may be adjusted for elevation.

The roller 18 resting' on the guides 25 supports the rod 13 at an elevation determined by the `position ofthe roller 18 on the guides.

vThis determines the elevation of the lheel vblank 16 with respect to the cutters 6. T he roller 21 resting on the guides 32 determines `the inclination of the."heel blank with respect to the cutters.

In the operation of this machine, the operator places the blank 16 in thesupport 14 and againsta suitable stop 36 and then clamps it in place by means of the clamp 15. He then swings the handle 37 of the support 14 to one side, at Vthe same time Swinging the arm 12 to the same side until the roller 21 comes against a. `stop-screw 33 accurately fplacedon the guide 32. At the same time the arm12 is moved toward the cutters 6 on that side until the guide-plate 39 on the head 20 coinesagainst a stop Ll0 mounted in front of the bearing 4. Each bearing 4 is provided with such a stop Zl0 and the guide-plate 39 which contacts therewith is formed so as to give the heel base its proper outline when the `holder le is rotated so as to carry the heel blank past the cutter. When the operator has moved the blank holder as described so that the guide plate 39 contacts with the stop 40,

the he-el blank will be brought against the cut` ter 6 `so as to cause the cutter to form the side of the heel adjacent the breast. The handle 3'? is then swung forwardly, keeping the guide-plate 39 in contact with the stop 110,

until the handle 37 stands substantially perpendicular to the plate 2. During this movementI `theblank will be guided by the guideplate 39 and the guides 25 and 32, all in com* bin-ation, so as to form one side of the heel up to the middle of the back thereof. rlhe operator then moves the blank out of engagement vwith that cutter and swings the holder tothe opposite side of themachine so as to engage the other cutter in a manner similar to that described for the first cutter. By a similar movement of the'handle 37 from the eX- tremeside position to its forward position perpendicular to the plate 2,`the other side of the heel is now formed. By these two operations the forming of the heel is completed.

As pointedoutpreviously it is important to Vhave the finished heel symmetrical. By independently adjusting the inclination of each oftheguides 25 and each ofthe guides 32 and providing in` combination therewith cutters 6 of a .suitable form, a heel of substantially any desired con-tour can be lformed. Since, however, the formation 1s carried out 1n two steps, 1t is liable to occur that the movements of the 'heelb'l ank in Vforming the tivo sides are Inotez;- acltly 'alike "and if this 1s the case 'the finished.

heel will not be symmetrical. Tn accordance with this invention the movements of the blank in forming the two halves may be. adjusted independently of each other -so that the twohalves may be formed exactly alike.

1t will be evident that in accordance with this invention provision is made notonly-for varyingthe shape ofthe heel by adjusting the upper and lower guides but also for insuring the formation of a symmetrical heel by adjustably guiding theY blank support so `as to regulate independently the cuts taken from the two halves of the blank. The path ofthe blank support is thus adjusted so as to `balance. the cuts on the Vtwo halvesand make the heel symmetrical. Since eachguidedoes its share indetermining the shape of the heel on that side and the "guides may be adjusted lso as 4to control the cuts on each side independently, Asymn'ietrically formed ysides for the heel are insured and at the same time, since the two guides of each pair `n'ierge at the middie, an accurate joining of the two formed surfaces at the'middle of the backof the heel is insu-red. j

The'pivots 24 and 31 are removed forwardly from the cutters while the adjustable links 27 and are arranged to adjust the elevation of the rearward ends of the guides. A compound adjustment is thu'sprovided by means of which practical-ly any shaped heel may be formed'and formedsymmetrically.

In the machines at presentin use in which the upper and lower guides are not separated into two independently adjustable halves, lit often happens thatan lunsymmetrical heel is formed having a shape somewhat as indi- 'cated'in Figure 5. ln such acaso it requires a great deal of filing and manipulation of the guides to correct the difficulty. ln accordance with this invention on the other hand, adjustment of one side or the other of one of the guides may be made independently of .all other a'djustn'lents until a symmetrical heel is obtained as indicated in Figure el. l/Vhat has often proved in the past to be an almost insurmountable difliculty in the use of this type ofmachine is thus eliminated by rthis invention. n j

It is obvious that various changes may be ina-de lin details of construction without depart-ing from the spirit of this invention; it is, therefore, to be understood that this intails shown and described. j

Having thus describedthe invention, ywhat is claimed is: Y l l,

1. In a machine of the character described, the combination withcutting means of a heel support, mea-ns for mounting said support 'vention is not to be limited to the specific defor movement with respect to said cutting means, guides for said support adapted to respectively determine the shape of the two halves of the heel, and means tor independently adjusting said guides.

2. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, guides for said support adapted to respectively determine the shape of the two halves of the heel, and means for adjusting said guides adapted to regulate the cuts taken from the two halves of the heel.

3. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, and guides adapted to tip said support in order to regulate independently the cuts taken from the two halves of the heel.

4. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, guides a-dapted to tip said support during its movement, and means 'for independently adjusting said guides.

5. In a machine of the character' described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, and a guide for said support pivoted on an axis adjacent its forward e-dge, and means for adjusting said guide.

6. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, guides for said support pivoted on an axis removed from said cut-ting means, and means for independently adjustingsaid guides.

7. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support vtor movement with respect to said cutting means, sectional guides adapted to control the movement or' said support, and means for independently adjusting said sections.

8. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, a guide composed of sections merging into one another and adapted to control the movement of said support, and means for independently adjusting said sections.

9. In a machine of the character described, the combination with cutt-ing means, of a heel support, means `for mounting said support for movement with respect to said cutting means, guides for eti'ecting compound adjustment of said support, and means for adjusting said guides in order to regulate the cuts taken from the two halves of the heel.

10. In a machine of the character described, the combination with cutting means, or a heel support, means for mounting said support for movem-ent with respect to said cutting means, guides for elevating said support, guides for tipping said support, and means for adjusting said guides in order to regulate the cuts taken from the two halves of the heel.

l1. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, guides, each composed of sections, or eiecting compound adjustment of said support, and means for adjusting said sections.

12. In a machine of the character described, the combination with cutting means, of a heel support, means for mounting said support for movement with respect to said cutting means, a sectional gui-d-e for elevating said support, a sectional guide for tipping said support, and means for adjusting said sections.

In testimony whereof we aiiix our signatures this 5th day of September, 1923.

ARTHUR A. MCCANN. CHARLES STOTZ.

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