US1238268A - Machine for making insoles. - Google Patents

Description

E. COEY.

MACHINE FOR MAKING'INSOLES.

APPLICATION FILED IAN.15, 19:6.

2 SHEETSSHEET 1.

Patented Aug. 28,

E- COEY.

MACH INE FOR MAKING INSOLES.

APPLICATION FILED JAN. 15, 1916.

1 38,268. Patented Aug. 28, 1917.

2 SHEETS-SHEET 2.

UNITED STATES PATENT @FFIQE.

EDWARD COEY, OF ST. LOUIS, MISSOURI, ASSIGNOR T0 UNITED SHOE MACHINERY COM- PANY, 0F PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR MAKING INSOLES.

Specification of Letters Patent.

Patented Aug. 28, 1917.

To all whom it may concern:

Be it known that I, EDWARD Conr, a citizen of the United States, residing at St. Louis and State of Missouri, have invented certain new and useful Improvements in Machines for Making Insoles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for making insoles and more particularly to lipslitting mechanism for such machines.

In all kinds of insoles in which a lip is formed from the insole stock, on one face of the insole, difiiculty is experienced, because of its curvature, in turning the lip into upright position. This is particularly true of insoles of the Economy type, illustrated in Letters Patent of the United States No. 849,245, granted April 2, 1907 to United Shoe Machinery Company on an application of Albert E. Johnson, in which both a lip and a flap are formed and then turned up to form a single compound lip. More especially difliculty has been experienced in turning up the flap which lies over the channel and heretofore various devices have been devised to produce, either in the flap or in the stock from which the flap is to be cut, a series of transverse slashes or slits which enable the curved portions readily to be turned up. Some dificulty has been experienced with these prior devices in providing flap slitting means which will not cut into and injure the between substance when operating on insoles having pointedtoes, and which will invariably produce a transverse slit for the flap when the insole is turned at the toe portion while being fed through the machine.

The object of the present invention is to provide flap slitting means which will ac curately perform its function at any part of the flap which requires a transverse slit to be made therein.

In accordance with this object a feature of the invention contemplates the provision, in a machine having means for feeding an insole, of a knife for producing transverse slits in the channel flap of the insole, so disposed relative to the means for guiding and feeding the insole, that on rounding the toe it will not be thrown out of flap slitting position. The arrangement hereinafter described is particularly useful on pointed toe work as it provides for a transversely arranged slit at the apex of the angle formed by the channel cuts on the two sides of the forepart.

To the accomplishment of this object and suchpthers as may hereinafter occur, as will readlly be understood by those skilled in the art, the invention comprises the features and combinations of parts hereinafter described and particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanying drawings in which:

' Figure 1 is 'a rear elevation of an insole channeling machine with the present novel improvement embodied therein,

Fig. 2 is an end elevation of the machine shown in Fig. 1,

Fig. 3 illustrates the feed foot of the channeling machine which carries the flap slitting knife in plan, side and end elevation.

Fig. 4 illustrates the presser foot of the channeling machine in plan, front and side elevation and under side view, and Fig. 5 is a plan of an insole, partially channeled and slashed showing the flap knife operating at the apex of the toe. V

In the embodiment of the invention illustrated in the drawings the channeling head, in so .far as the channeling knives, insole supporting, guiding and feeding mechanisms, and other features relating to the channeling operation are concerned, may be, and preferably is, the same as illustrated and described in Letters Patent of the United States No. 984:,773 granted F ebruarv 21, 1911, to United Shoe Machinery Conipany on an application of William 0. Meyer, to which reference may be had for a full disclosure thereof. It must be understood, however, that the features which are the subject of the present invention are capable of general application upon various types of insole channeling machines and the pres ent invention is not, therefore, to be considered as limited in its use to the particular type of channeling machine shown in the drawings. 7

Referring to Figs-1 and 2, theedge slitting knife 2 and the channeling knife l are mounted in a vertically movable channeling head 6; the insole is supported upon a depressible table 8 which is rotated step by step through a mechanism operated by a cam groove 10 ;'the insole is fed by a foot in a feed bar 12 which is given a fourmotion movement by connections to a cam groove 1% and a crank pin on the end of the cam shaft 16; the position of the insole is gaged relative to the knives by an edge gage 18, the position of which relative to the knives is altered by connections operated by a handle 20; all as illustrated and described in said Letters Patent No. 9841,? 73 hereinbefore referred to.

Referring now more particularly to Fig. 3 which illustrates the novel knife for producing a slashed channel flap,,the feed foot 22,, which is clamped at the lower end of the feed bar 12 by a clamping bolt 2%, is provided with the usual forward and rear feed points 26 and 28 which enter the between substance of the insole and also with a wing feed member 30 which, however, is not a part of the present invention. Carried by the feed foot and preferably, though not necessarily, formed integral therewith, is the flap slitting knife 32. This knife (see, side elevation, Fig. 3) projects forwardly and downwardly at the outer side of the feed point 26 and its cutting edge is set at an acute angle to the forward edge of the feed foot, or as it may otherwise be expressed, at an acute angle to the line of feed (see, plan, Fig. 3). The flap knife 32 is in line with the channeling knife 41, it being hidden behind the channeling knife in Fig. 1, so that both of these knives are spaced, across the line of feed, the same distance from the edge gage 1S and, therefore, operate upon the same portion of the insole.

Mounted on the channeling head 6 is the usual double presser foot 3% for the edge slitting and channeling knives the only change in this part being the pro-vision in its forward face of a recess 36 for the reception of the flap slitting knife 32 when the feed bar 12 has advanced the farthest forward. At this time the forwardly projecting feed point 26 rests in the slot 38 of the presser foot and the recess provides for the free advance of the forwardly projecting flap knife and for its free elevation when the feed bar rises just prior to its backward stroke. The flap knife is placed at the forward edge of the feed foot so as to make the slash as'near as possible to the presser foot which bears down on the insole.

In operation, the insole is fed from right to left in Fig. 2, and each down stroke of the feed bar will cause the flap slitting knife 32 to cut a slash in the face of the insole. The feed foot is moved forward while the knife 32 is embedded in the insole, forcing the insole past the stationary channeling and edge slitting knives to produce a channel and an edge slit. lVith the relative arrangement described the portion of the insole which has been slashed will be fed past the channeling knife, and the depth of the slashes being regulated to the depth of cut made by the channeling knife, a transversely slashed channel flap is produced.

The arrangement of the cutting edge of the flap slitting knife relative to the line of feed, as hereinbefore described, is of particular importance. The value of this arrangement will be made clear from an inspection of Fig. 5. This figure illustrates the forepart of an insole having a fairly pointed toe which has been channeled and edge slit along one side to the center of the toe. The dotted marginal lines indicate the base of the cuts made by the knives 2 and. f and the dot and dash lines the future continuation of these cuts. The feed foot 22 and edge gage 18 are dotted in position just as the toe is being turned. The knife 32 is shown as making a slash in the insole at the apex of the toe where the channel cuts at each side will meet. It is at once apparent, from an inspection of Fig. 5, that if the cutting blade of the flap slitting knife 32 were at any materially different angle to the line of feed, as indicated by the arrow, the slash would not be made in the portion of the stock which is to receive the channel. For example, if the knife blade were arranged at right angles to the line of feed it is evident that on turning the toe the knife would not make a transverse cut in the flap but would overlap and slash the between substance, which would be highly undesirable for reasons well known to those skilled in the art."

WVhile a major portion of the transverse slits produced in the flap are situated obliquely across the flap, this is not disadvantageous while it is highly advantageous to provide for production of a slit at the toe which will not result in a crippled insole. It is obvious that by removing the knives 2 and at the machine may be used to slash the channel flap of a previously channeled insole.

The objects and purposes of theinvention having been explained in connection with its preferred embodiment, what is claimed as new is 2- l i 1. A machine for preparing insoles, having, in combination, means for supporting an insole and feeding it through the machine, an edge gage and an intermittently operated knife having its cutting blade at an acute angle to the line of feed positioned relative to the edge gage so as to produce a slashed channel flap.

2. A machine for preparing insoles, having, in combination, means for supporting an insole, means for feeding the insole in cluding a feed foot intermittently engaging the insole, and a knife mounted on thefeed foot arranged to produce a transversely slashed channel flap and having its cutting blade at an acute angle to the line of feed.

3. A machine for preparing insoles, hav- 5 ing, in combination, means for supporting an insole, a four motion feed foot having feed points for entering the between substance of the insole, and a knife carried by the feed foot at its forward edge and at the outer side 10 of said feed points having a cutting blade gor producing a transversely slashed channel 4:. In a machine for preparing insoles, a

four-motion feed foot, and an insole slashing knife carried thereby mounted and arranged to produce a series of transverse slashes in the insole oblique to the line of feed.

5. In a machine for preparing insoles, insole feeding means, adapted to engage the insole within its edge, and an insole slashing knife operated thereby having its cutting blade at an acute angle to the line of feed whereby a series of marginal, transverse slashes are made in the insole.

EDWARD COEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. G.

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