US2752620A - Machines for attaching ribbed strips progressively to margins of soles - Google Patents

Description

y 3, 1956 A. s. CLARK 2,752,620

MACHINES FOR ATTACHING RIBBED STRIPS PROGRESSIVELY T0 MARGINS OF SOL-ES Filed Nov. 6, 1952 5 Sheets-Sheet l Inventor A lfreod. Clark. 5 1

y 3. 1956 A. s. CLARK 2,752,620

MACHINES FOR ATTACHING RIBBED STRIPS PROGRESSIVELY TO MARGINS OF SOLES Filed Nov. 6, 1952 5 Sheets-Sheet 2 M Alfred J. Clar y 1956 A. s. CLARK 2,752,620

MACHINES FOR ATTACHING RIBBED STRIPS PROGRESSIVELY TO MARGINS OF SOLES 5 Sheets-Sheet 4 Filed NOV. 6, 1952 Inventor A freak ClarL July 3, 1956 A s CLARK 2,752,620

MACHINES FOR AT'l ACHING RIBBED STRIPS PROGRESSIVELY TO MARGINS OF SOLES Filed Nov. 6. 1952 5 Sheets-Sheet 5 fnvenior Alfred 6. Clark 4y I United States Patent MACHINES FOR ATTACI-EVG RIBBED STRRS PROGRESSIVELY T0 MARGINS 0F SOLES Application November 6, 1952, Serial No. 318,980

1 Claim. (Cl. 1220) This invention relates to machines for performing an operation progressively about the margin of a shoe sole and is herein illustrated in its application to machines for attaching to the marginal portion of an insole a ribbed strip to prepare the insole for use in the manufacture of welted shoes. Such a machine is illustrated and described in United States Letters Patent No. 2,573,683, granted November 6, 1951, on an application filed in the name of Frederic E. Bertrand.

In the operation of machines of the type illustrated in the Bertrand patent above referred to, on certain types of winged insoles the edge gage is elevated above the insole and retained in that position while the winged portion of the insole is fed through the machine. During this stage of the operation the insole is guided manually without the aid of the edge gage, and to facilitate the manual guidance of the insole during this stage of the operation the illustrated machine is provided with a sight constructed and arranged to register with a mark on the insole. When the sight is in operation an adjuster holds gage in an elevated position above a sole sup ported in the machine, suitable means being provided for retaining the adjuster 1n gage elevating position. In the illustrated organization the adjuster above referred to also operates to determine the position of the edge gage relatively to the sole when the edge gage is in operative position.

The invention will appear more fully from the following description when read in connection with the accompanying drawings and will be pointed out in the appended claim.

In the drawings,

Fig. 1 is a left side elevation of the head of a machine embodying the present invention;

Fig. 2 is a front elevation of the head of the machine;

Fig. 3 is an enlarged detail view illustrating a portion of the work-supporting mechanism;

Fig. 4 is a front elevation of the machine head illus trating particularly a gaging means for use in gaging winged insoles;

,. Fig. 5 is a front elevation of a portion of the mechanism illustrated in Fig. lation to an insole; Fig. 6 is a front 4 showing the edge gage in reelevation similar to Fig. 4 showing the edge gage in its retracted position;

Fig. 7 is a section on the line VIIVII of Fig. 6;

Fig. 8 is a plan view illustrating the work supporting and edge gage mechanisms;

Fig. 9 is an enlarged detail view of part of the edge gage mechanism taken in section on the line IXIX of Fig. 10;

Fig. 10 is a section on the line X-X of Fig. 9;

Fig. 11 is an enlarged perspective view illustrating the work-feeding mechanism;

Fig. 12 is a front elevation of the work supporting and edge gaging mechanisms, partly in section on the line XII-XII of Fig. 8; i

, 2,752,620 Patented July 3, 1956 Fig. 13 is a perspective view of the rear portion of a Winged insole with a ribbed strip applied thereto; and

Fig. 14 is a perspective view of the rear portion of a winged insole of a type different from that shown in Fig. 13 having a ribbed strip applied to a portion of its margin.

The machine illustrated in the drawings is substantially the same in its general organization as prior machines of this type such, for example, as that illustrated and described in the Bertrand patent hereinbefore referred to. Machines of this type are provided with means for cement attaching a ribbed strip to the outsole facing surface of a flat insole as the insole and the strip are fed step by step by the operating instrumentalities of the machine. Such machines are provided with suitable means for directing the rib as it approaches the operating point and with edge gage mechanism for determining the position of the edge face of the insole with relation to the strip at the point of attachment of the strip to the insole.

Referring to Fig. 1, the illustrated machine is provided with a table 26) having a flat horizontal top surface on which an insole, such for example as the insole 22, is supported and fed step by step during the strip attaching operation. The table has a shank portion 24 extending vertically downwardly from its left side portion and positioned in a central groove 26 in the upper portion of a dovetail slide 28 and secured therein by a headed screw 30. Referring to Fig. 2, the shank portion 24 of the table has a horizontal arm 32 extending to the right as seen in Fig. 2 and providing a support for alternative gage mechanisms hereinafter described. Referring to Fig. 1, the slide 28 is mounted in a guideway in a stationary head 34 and is urged upwardly through the guideway by a spring 36 mounted in a bore 38 in a neck 49 extending downwardly from the head. The spring 36 is confined between a thimble 42 engaging the lower end of the spring and a plate 44 (Fig. 3) secured to the bottom edge face of the slide 28 by a screw 46 and extending to the right at right angles to the slide. The normal rest position of the slide 28 and the table 20 mounted thereon is determined by the engagement of a stop screw 50 mounted in the plate 44 with a bottom surface 52 of the head 34. The screw 50 is so adjusted that when the machine is operated without an insole on the table 20 the feed foot 54 (Fig. l) which feeds the insole just clears the top surface of the table. To provide for the downward movement of the table 20 to permit the mounting of the insole thereon, a lever 56 is ful- 58 in the neck and connected to the 28 by a link 60 pivotally mounted on the slide and having a pin-and-slot connection to the central portion of the lever. The lever is connected to a treadle (not shown) by a treadle link the bent upper end portion of which is identified in Fig. I by the numeral 62. The depression of the treadle moves the slide 28 and the table 20 downwardly against the In the operation of the illustrated machine the position of the edge of the insole relatively to the operating instrumentalities in a direction perpendicular to the path of feed is varied at certain points in the strip applying operation in order to vary the width of the marginal portion of the insole extending outwardly from the rib and commonly referred to as the feather of the insole. In order to provide for the guiding of the insole so as to permit theoperator to vary the width of the feather margin at will, the illustrated machine is provided, with: two alternative edge gage mechanisms. Referring to. Fig. 12 ,v illustrating one of the edge gage assemblies, 2 gage member 70, constructed and. arranged to engage the edge face of an insole mounted on the work table 20, is mounted on a slide 72 which is operable by a hand lever 7 4 (Fig. 8) to adjust the edge gage in a rectilinear path perpendicular to the direction of feed; The illustrated edge gage 7 0, has a shank portion 76 from, which there extends downwardly a stem 78 having a. tongue which provides for sliding adjustment of the stem, in a vertical groove in an arm Stl, a set screw 82 mounted in the arm serving to secure the stem 78 in adjusted position. The arm 80 is mounted for horizontal adjustment in an upwardly extendingportion 84 of av Plate 86 and is secured in adjusted position by a clamping screw 88 extending through a slot in the arm. The plate 86 is grooved to receive a tongue formed in an. arm 90- to permit rectilinear adjustive movement of the plate in a path parallel to the direction of feed. The arm 90 is formed integrally with the slide 72 and is offset upwardly therefrom, as shown in Fig. 12, and extends forwardly at right angles thereto, as shown in Fig. 8. The slide 72 is a dovetail structure and is mounted for rectilinear movement in a path perpendicular to the direction of feed in a suitable guideway 92' formed in the arm 32. To provide for adjustive movement of the slide 72. a stem 94 is mounted therein and arranged to, project downwardly therefrom. Mounted on, the stem 94 and supported by the head 96 at the lower end of the stem is a swivel block 98 which, as shown in Fig. 8, is substantially square in cross section. The block 93 is engaged by the parallel bifurcations 100 of a lever 162. Inasmuch as the lever 102 does not move vertically with the slide 28 the swivel block 98 is extended vertically sufiiciently to permit movement of the slide 28 within the range provided in the illustrated organization without. causing disengagement of the swivel block from the bifurcated end of the lever. The lever 102 has a central hub 164 which is secured by a set screw 106 to the upper end portion of a headed pin 1% pivot. ally mounted in a discoidal extension 110 of the head 34. The forward end portion of the lever 192 has parallel bifurcations 112 which receive between them in sliding engagement, a swivel block 1 14-pivotally mounted on an eccentric pin 116 projecting upwardly from a flat cylindrical head 118' at the upper end of a shaft 120. The shaft is journaled in a sleeve 121 (Fig. 2) secured by a draw bolt 122 in a bracket 123 fixed to the forward portion of the head 34. The hand lever 74 is carried by a collar 124 secured by a draw bolt 125 to the lower end portion of the shaft 120. The collar has two parallel ears 126 (Fig. 1) extending downwardly from its margin and pivotally mounted between them is a reduced and upwardly offset end portion 128 of the hand lever. In the organization illustrated in Fig. 2, the edge gage 70 has three adjustive positions. The extreme adjustment of the edge gage to the left as seen in Fig. 2, is determined by the engagement of a pin 130 projecting downwardly from the head 118 at the upper end of the shaft 120 with a shoulder 132 formed in the bracket 123. The extreme adjustment of the edge gage to the right, as seen in Fig. 2, is determined by the engagement ofa lug 134 projecting downwardly from a split collar 136 on the head 118 with an extension 138 of the head 34. An intermediate adjustive position of the edge gage between the two extremes is provided by the engagement of a plunger 146 carried by the hand lever 74 in a radial groove in the bottom of the enlarged lower edge portion 142 of the sleeve 121. The plunger is advanced upwardly into its position in the slot by a spring 172 (Fig. t). positioned beneath the hand lever 74 and arranged to surround a pin 174 and confined between the bottom of the hand lever and a nut 176 on the threaded lower end portion of the pin. At its upper end the pin 174 has a head 178 which is pivotally mounted on a pin 180 mounted in two parallel ears 146 projecting from the collar 124. The plunger is fixed to the lever 74 and extends upwardly therefrom through a clearance opening in the collar 124.

Inthe construction illustrated in Figs. 4 to 7 inclusive, there isprovided an. edge gage constructed and arranged to operate on winged, insoles. The illustrated edge gage is mounted to swing upwardly from its position in Fig. 4 to v its position in Fig. 6 to permit the wing portion of the insole to pass beneath it. Such swinging movement of the edge gage is caused, by a movement of the slide 32 to the right as seen in Fig. 6. In the illustrated organization such movement of the slide is effected by the hand lever 74 and accordingly in this organization of the machine a fourth; adjustive position of the lever is provided. In. this organization the extreme adjustment of the edge; gage to the left, hereinafter referred to as the first stop position, is provided by the engagement of the pin 1130; with the shoulder 13:2. as in the construction illustrated in, Fig 2, and the next adjustive position, to the right, hereinafter referred to. as the second stop position, is determined bythe engagement of the plunger 140 in the groove inthe enlarged lower end portion of the sleeve 121 as. inthe construction illustrated in Fig. 2. To provide for the third step position of the edge gage a latch lever 144. is pivotally mounted. between parallel ears 1 46. projecting from the collar 124 and is urged into, latehing position by a spring 148 interposed between the hand lever 74 and a tail portion 150 of the latch, lever... said spring surrounding a pin 152 piv tally mounted} in a. slot 154. in the. tail portion of the latch, lever and extending downwardly therefrom through a, boreuin the hand lever. The movement of the latch lever by the springislimited. by a stop nut 156, on the threaded lower end portion, of the pin 152.. The third stop po ti n. is etermine by he n g nt of a finger 158. (Fig. 4) projecting horizontally from the latch leverin a notch 16d in a. split collar 162. secured to the enlarged lower end portion 1142, (Fig. 2). of the sleeve 121. It will be understood that the third stop position, above. referred to, corresponds to the extreme adjustmentv of the hand lever 74' to the right in the construction. illustrated in Fig. 2. The. fourth, stop position of the hand lever 74, this being the position illustrated in Fig. 6; is determined by the engagement of the lug 134. on the split collar 136 with the extension. 138.- of the head 34,. the collar having been adjusted on the head 118. in accord.- ancewith the fourth, stop position of the hand lever,- as determined" by the operator. In order to cause thehand lever to be retained in its fourth stop position. a. latch element 164 projecting upwardly from, the latch lever 144 is constructed and arranged for latching engagement with alatch member herein illustrated as an ear 166 (Fig. 7 projecting from a split collar 1.68 mounted on a cylindrical portion 171 (Fig. 2) formed in the bracket'123.

Itwill be understood that the collar 124 is adjustable on the shaft 12.0 to vary the position of the handlever 74 to suit' the convenience of the operator and the split collars 13.6 168. and 162 are adjustable angularly about their mountings inorder to vary the stop positions of the edge gage as required" by the size or style of the insoles to, be operated upon, or by the practice of the shoe manufacturer,

Referring to Figs. 4 to 6; inclusive, illustrating the edge gage mechanism for use in winged insole work, an. edge gage 182 generally similar to the edge gage 70, is carried by anangle arm 184" pivotallymounted' on across pin 186 fixed in two parallel upstanding angle arms. 188 formedintegrally with a horizontal arm 189 fixed to the slide-99. Each of the two angle arms comprises a hori'? zontal upper portion and a downwardly inclined lower portion which provide between them space affording clearance for the passage of the wing portion of an insole such, for example, as the insole 190 illustrated in Fig. 5. To provide for adjustment of the edge gage 182 horizontally in a direction substantially perpendicular to the path of feed, the edge gage has a longitudinal tongue 192 mounted to slide in a groove (not shown) in the angle arm 184, the edge gage being secured in adjusted position by a headed clamping screw 194 extending through a slot 196 in the arm 184 and into a tapped hole in the edge gage. The edge gage is normally held in its angular position shown in Fig. 4 by a compression spring 198 mounted in a socket in one of the angle arms 188 and arranged to bear against the downwardly extending portion of the angle arm 184. This position of the edge gage is determined by the engagement of a stop screw 200 mounted in a plate 202 fixed to the top of the angle arm 184 with the upper surface of the horizontal portion of the foremost of the two angle arms 188. The stop screw 200 is so adjusted that the edge gage is arranged contiguous to the horizontal top surface of the table while held from actual contact therewith. The edge gage 182 is swung upwardly from its position in Fig. 4 to its position in Fig. 6 during a final stage of the movement of the slide 32 to the right, as seen in Fig. 6, such movement of the slide being effected by the movement of the hand lever 74 from its third stop position to its fourth and final stop position. To provide for such swinging movement of the edge gage the downwardly extending portion of the angle arm 184 carries at its lower end a roll 204 arranged to engage a plate 206 secured to a fixed upright member 208. Referring to Figs. 9 and 10, the roll 204 is mounted to rotate on an eccentric portion 226 of a bolt 228 mounted in the lower end portion of the angle arm 184, the roll being confined between the angle arm and the slotted head 230 of the bolt.

The extent of swinging movement of the edge gage may be varied by slacking off the nut 232 on the bolt 228 and turning the bolt to adjust its eccentric portion 226 toward or from the plate 206.

To provide for the guidance of the winged portion of an insole such, for example, as the insole 210, illustrated in Fig. 14, relatively to the operating instrumentalities of the illustrated machine that portion of the casing 212 (Fig. 11) which supports the ribbed strip to be applied to the insole has a wedge shaped sighting element 214 fixed to and projecting downwardly from its inclined bottom surface. To provide for the positioning of the insole 210 relatively to the sighting element, the insole has inscribed thereon a mark 216 (Fig. 14) which identifies the position which is to be occupied by the rib of the strip to be applied to the insole. The sighting element 214 is so arranged on the inclined bottom surface of the casing 212 that it is substantially contiguous to the top surface of the insole during the operation of the machine and is easily visible by the operator, thus facilitating the registration of the mark on the insole with the sighting element as the insole is fed in the operation of the machine.

Referring to Fig. 13, the winged insole 218 has a shoulder 220 at the juncture of the wing 222 with the body portion of the insole, said shoulder defining the last bottom line along the inside portion of the shank. In the operation of the illustrated machine on insoles of this type the edge gage 182 is brought to bear against the shoulder 220 as shown in Fig. 5. It will be understood that when the direction of feed along the winged portion of the insole is toward the heel end of the insole the hand lever 74 is operated to elevate the edge gage 182 to bring it into position to engage the top surface of the wing 222. When the direction to feed along the winged portion of the insole is toward the toe end of the insole the operation commences with the edge gage on the wing 222 and no manipulation of the hand lever 74 is required by the presence of the wing 222 since the spring 198 will swing the edge gage assembly into its position shown in Fig. 4 as the edge gage moves off the top surface of the wing.

In the operation of the illustrated machine on winged insoles such, for example, as the insole 210 illustrated in Fig. 14, if the operation starts on the winged side of the insole the hand lever 74 is swung into its fourth stop position to bring the edge gage into its position shown in Fig. 6 for the beginning of the operation, the edge gage being held in this position by the latch lever 144, as shown in Fig. 7. After the feeding movement of the insole has brought the wing 224 beyond the point of operation the operator releases the latch lever 144 from the ear 166 and swings the lever to the left to its first stop position thus bringing the edge gage into a position such that the ribbed strip is so spaced from the edge of the insole that a feather margin of a minimum width is provided. This adjustment is maintained until the feeding movement of the insole has brought the proximate end of the tip line to the operating point. If the shoe is to be provided with a toe stiffener the hand lever 74 is adjusted, at this stage in the operation, to its second stop position in order to increase the width of the feather margin about the toe portion of the insole to compensate for the added thickness of the toe stiffener. When the feeding movement of the insole has brought the extremity of the tip line to the operating point the hand lever is returned to its first stop position and this position is maintained until the feeding movement of the insole has brought the shank portion of the insole to the operating point. As the operation proceeds into the shank portion of the insole the hand lever 74 is adjusted to its third stop position in order to provide the maximum width of feather margin to compensate for the added thickness of the heel stiffener at that portion of the shoe bottom.

The edge gage illustrated in Figs. 4 to 6 may be employed in the operation of the machine on insoles other than those of the winged type. The operation of said edge gage in the application of ribbed strips to such insoles will be understood from the above description.

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

In a machine for performing an operation progressively about the margin of a shoe sole, a work support, a slide mounting the work support for vertical movement, an immovable frame in which the slide is mounted, an edge gage mounted to move with the slide, an adjuster mounted on the frame, means whereby the adjuster moves the edge gage relatively to a supported sole, means whereby the adjuster elevates the edge gage above the supported sole, means for retaining the adjuster in gage-elevating position, and a sight constructed and arranged to be employed, when the gage is elevated, to position the sole on the support.

References Cited in the file of this patent UNITED STATES PATENTS 603,763 Hadaway May 10, 1898 814,730 Riel Mar. 13, 1906 979,836 Eppler Dec. 27, 1910 2,174,563 Bolton Oct. 3, 1939 2,335,264 Dixon Nov. 30, 1943 2,335,267 Elliott Nov. 30, 1943 2,494,578 Paulsen Jan. 17, 1950 2,542,993 Clark Feb. 27, 1951 2,573,683 Bertrand Nov. 6, 1951 FOREIGN PATENTS 546,550 Germany Mar. 15, 1932

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