US1843232A - Lasting machine - Google Patents

Description

Feb. 2, 1932. B. JORGENSEN LASTING MACHINE l I I 1 H I l 16 Sheets-Sheet l Wl/OJ AI Filed July 15, 1929 B. JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 2 T UM W //v VE/V TUH Hr emokq Feb. 2,1932.

Feb. 2, 1932. B. JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheet-Sheet 5 mwm Feb. 2, 1932. B. JORGENSEN 1,843,232

LASTING MACHINE H Filed July 15, 1929 16 Sheets-Sheet 4 Fig".

Feb. 2, 1932. 51 JQRGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 5 Feb. 2, 1932. B JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 6 Feb. 2, 1932. JQRGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 7 B. JORGENSEN LASTING MACHINE Feb. 2, 1932.

Filed July 15, 1929 16 Sheets-Sheet 8 llll l Feb. 2, 1932. B. .JORGENSEN LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 9 Feb. 2, 1932. JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 SheetsSheet 1O //V l/E/V TURL W Feb. 2, 1932. B. JORGENSEN LAS'ITING MACHINE Filed July 15, 1929 16 Sheets-Sheet ll Feb. 2, 1932. JORGENSEN 1,843,232

L ASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet 1s Fig.1.

MA/ENTER. 830 W gt; amp I MWM I Feb. 2, 1932. B JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet l4 //v l/Qy 70R Feb. 2, 1932. B. JORGENSEN LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet l5 Feb. 2, 1932. JORGENSEN 1,843,232

LASTING MACHINE Filed July 15, 1929 16 Sheets-Sheet l6 VE/V TEFL H ul jumhw Patented Feb. 2, 1932 UNITED STATES PATENT OFFICE- BERNHABDT JOBGENSEN, 0F BEVERLY, MASSAC HUSE'ITS, ASSIGNOB TO UNITED SHOE 4 MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY LASTIN G Application am m 15,

This invention relates to machines for use in the manufacture of shoes, and in many of its aspects has more particular reference to machines for lasting shoes. The invention is herein illustrated as applied to a machine organization of the same general character as that disclosed in Letters Patent No. 1,77 5,- 2525, granted upon an earlier application of mine on September 9, 1930, especially adapted. for use in the lasting of tennis shoes or the like in which the uppers are fastened to the insoles by cement, and important objects are to provide improvements in an organization of that character. It is to be understood, however, that in various novel and useful aspects the invention is not limited to machines of the particular type therein disclosed nor to machines for lasting tennis shoes.

One important object of the invention is to provide improved means for laying the margin of an upper over an insole and for pressing it upon the insole in the lasting operation, for example. as herein illustrated, in the lasting of the sides of a shoe between its toe and heel end portions. Machines of the illustrated type are-provided with side-lasting mechanisms comprising flexible lasting straps and members or fingers arranged to act through the straps to lay the upper over I the insole, these members being movable inwardly over the bottom of the shoe and also movable heightwise of the shoe to press the upper upon the insole. For purposes of this invention the machine herein shown is provided with automatic yieldable means which operates independently of the lasting straps to impart to the above-mentioned members upper-pressing movement toward the bot tom face of the insole early in their inward movement over the shoe, with a progressive increase of the pressure thereafter in their further inward movement. This contributes to the production of a tightly lasted shoe with the margin of the upper pressed evenly and firmly upon the bottom face of the insole to which, in a-shoe of the type illustrated, it adheres through the action of the cement. In addition to novel features involved in such a combination of lasting straps and MACHINE 1929. Serial No. 378,336.

members or fingers acting through the straps 1n the manner described, features of novelty are also to be recognized in the disclosed combination of lasting fingers with their operating and controlling means.

The invention further provides a novel combination of upper-shaping or lasting means and means for clamping the upper agamst the last, such means being arranged in the machine herein shown to operate at the sides of the shoe between its too and heel end portions. A special object thus in view is to guard against danger of distortion of uppers in the side-lasting operation when the uppers are not laced at the time of that operation, as 1s sometimes the case in the manpfacture of tennis shoes. For the purpose in view, the illustrated machine is provided with devices which clamp against the sides of the last portions of the upper that are sub ect to strain in the operation of the sidelastin'g mechanisms at the shank portion of the shoe, these devices being arranged to engagexthe upper in locations spaced substantially from the bottom of the last to afford room for upwiping of the upper by the lastmg straps. The clamping devices shown comprise thin spring metal fingers arranged to be overlapped by portions of the lasting straps. Novelty is also to be recognized in the means for controlling the side-clamping devices. Machines of the type illustrated include in their organization heel-lasting mechanism mounted for positioning movement ,toward the heel end of the shoe prior to the starting of the power operation of the machine. and in the construction shown the side-clamping devices are controlled by the positioning movement of the heel-lasting mechanism so as to be swung yieldingly into operative position as that mechanism is moved to its operative position.

Other novel features are to be recognized in the heel-lasting means and portions of the machine that are closely associated therewith. In accordance with one feature, the construction is such that the above-mentioned positioning movement of the heel-lasting mechanism, effected by automatic means under control of the operator, is a rectilinear movement, the construction shown comprising a machines of the illustrated type that the heel-.

lasting wipers are controlled by a positioning device which moves them heightwise of each shoe against the resistance of springs to a position determined by a member. engaging the bottom of the shoe, with provision for tipping of the wipers lengthwise and laterally of the shoe into proper relation to the shoe bottom; and the invention provides im provements in the means for thus controlling the wipers, the construction shown compnsing members for engaging the wiper mechanism in three separate locations to effect its positioning movement, with provision for adjustment of one of the members to vary the position of the wipers in respect to inclina tion lengthwise of the shoe. It is .also a novel characteristic of the illustrated machine that thewiper-positioning means is mounted for movement about an axis extending heightwise of the shoe to position it in relation to the wiper mechanism; and novelty is likewise to be recognized in provision for simi-' lar movement of a shoe-engaging presser foot at the heel end of the shoe which. in the construction shown, is combined with the wiperpositioning means to move therewith.

To facilitate and expedite control of the power operation of the machine, the construction provided by this invention is further such that starting of the machine is effected in response to movement by the operator of a member for engaging or operating on the shoe. As illustrated, a toe presser foot is movable by the operator from an idle position to a position over the shoe, and mechanism is provided for starting the machine by-that movement of the presser foot.

It is preferable for mechanical reasons that movement of the toe presser foot into position over the shoe be thus efi'ected manually rather than by power, and by utilizing the same movement to start the machine the need for separate startingmeans and for a separate starting operation are eliminated.

Still another feature relates to control of the shoe by means engaging its bottom portion, as herein illustrated to depress the shoe relatively to lasting mechanism, the construction shown comprising a novel organization including a toe presser foot and a heel presser foot with power-operated means for moving them first into engagement with the shoe and then to depress the shoe.

The above and other features of the invention, including novel means for insuring against accidental or unauthorized movement of the starting mechanism, novel means for insuring against breakage of parts of the machine under possible abnormal conditions, and various novel details of construction and combinations of parts, will now be more par- Fig. 1 is a view in front elevation of a mas chine in which the invention is embodied,

with portions broken away, the machine being shown in this and other views with the parts positioned as they appear at an intermediate stage in the cycle of operations on a shoe;

Fig. 2 is a plan view of the machine, with parts broken away;

Fig. 3 is a vertical section in a plane extending lengthwise of the machine substantially midway between the frontand rear thereof;

Fig. 4 is a right-hand end elevation, with parts broken away;

Fig. 5 is a section substantially VV of Fig. 1;

Fig. 6 is a left-hand end elevation, with parts broken away;

Fig. 7 is a section'substantially on the line VII-VII of Fig. 1;

Fig. 8 is a view of the upper right-hand end portion of the machine, partly in front elevation and partly in section;

v Fig. 9 is a section on the line IX-IX of Fig. 8, with parts'broken away;

Fig. 10 is a View, partly in elevation and partly in section, of a portion of the mechanism shown in F 9; p

Fig. 11 is a view in elevation, showing on a larger scale and in greater detail a portion of the structure shown in Fig. 9;

Fig. 12 shows in plan portions of the heellasting mechanism as viewed in a location represented by the line XIIXII of Fig. 8;

Fig. 13 shows in plan portions of the same mechanism as viewed in a location represented by the line XIII-XIII of Fig. 8, with parts in section; I

Fig. 14 is a section substantially on the line XIV-XIV of Fig. 8, with parts omitted;

Fig. 15 is a view in front elevation of portions of the toe-lasting mechanism;

. Fig. 16 is a plan view of the same mechanism with a portion of the cover plate removed;

Fig. 17 shows the toe-lasting mechanism in section in a plane extending centrally through said mechanism lengthwise of the machine;

Fig. 18 is a section on the line XVIII- XVIII of Figs. 1, 3 and 17;

Fig. 19 is a view, partly in front elevation and partly in section, of a toe depressor and retarding device with which the machine is provided;

Fig. 20 is a section on a larger scale on the line XX-XX of Fig. 19;

Fig. 21 is a vertical section, also on a larger scale, on the line XXI-XXI of Fig. 19;

Fig. 22 is a vertical section on an enlarged on the line scale, illustrating more in detail the con-- struction'of one of the opposite side-lasting mechanisms and showing the initial position of the mechanism in relation to a shoe;

Fig. 23 is a view similar to a portion of Fig. 22, illustrating the final shoe-engaging positions of the opposite side-lasting mechanisms;

Fig. 24 shows the upper portion of one of the side-lasting mechanisms as viewed from the right-hand side of Fig. 22, with a portion of the casing removed or in section;

Fig. 25 shows shoe-removing mechanism with which the machine is provided, in the position which it occupies when about to grip a shoe;

Fig. 26 is a view, partly in elevation and partly in section on the line XXVI-XXVI of Fig. 3, showing the power driving means and portions of its controlling mechanism; and

Fig. 27 is a section on a larger scale on the line XXVIIXXVII of Fig. '26.

Tennis shoes are usually made on lasts having two spindle holes in their neck portions, of which the rearmost hole is conveniently utilized for positioning the work in the machine herein shown. For this purpose the machine has a lastpin 30 (Figs. 3 and 14) 'which is carried by a slide 32 mounted for adjusting movement in directions lengthwise of the last and shoe in guideways formed in the upper end of a Vertically movable supporting slide 34, the slide 34 being depressible with the shoe, as hereinafter described, against the resistance of a spring 36 from an initial raised position determined adjustably by a stop screw 37. The slide 32 is adjustable lengthwise of the shoe by a hand wheel 38 fast on a shaft 40 rotatable in a bracket 42 secured on the slide 34, this shaft being con nected by bevel-gears 44 to a shaft 46 also rotatable in the bracket 42 and having screw threads engaging a nut 48 fixed in a recess in the slide 32. The last pin 30 is also adjustable in directions heightwise of the shoe to position the bottoms of lasts of different sizes at the same height, and for this purpose it is provided, below that portion which enters the last, with screw threads 50 engaged by cooperating threads of a bevelgear 52 which is mounted in a bearing in the slide 32. The gear 52 is engaged by a co-operating bevelgear 54 (Fig. 14) fast on a shaft 56 mounted in a bearing in the slide 32' and extending outwardly through an elongated slot 58 formed in the slide 34, this shaft having on its outer end a hand wheel 60. Suitable means, not shown in detail, is provided for preventing the last pin 30 from turning. It will thus be seen that the means for adjusting the last pin 30 vertically is carried by the horizontally movable slide 32 so that this adjustment may be effected in any position of adjustment of the slide.

The heel-end-lasting mechanism, comprisprojecting from the vertically movable shoe support slide 34. The slide 62 is maintained initially in an idle position comparatively remote from the shoe by a latch 66 in engagement with a lug '68 on the lower end of the slide, and upon its release by the latch it is moved toward the shoe by a spring 70 which abuts at one end against a bracket 71 secured to the outer ends of the rods 64. It will be understood that, as above stated, the drawings do not show the parts in their initial positions, but in the positions that they occupy at an intermediate stage in the cycle. The

latch 66 is operated manually to release the slide 62 prior to the starting of the power operation of the machine, to cause the clamping of the upper about the heel end of the last before the machine is started. For this purpose there is provided a plunger 72 (Fig. 7) having on its outer end a rubber cushion 74 adapted to be engaged by the knee of the operator, this plunger being movable rearwardly against the resistance of a spring 76. At its inner end the plunger 72 is arranged to abut against a member 7 8 fast on a bar which is movable lengthwise in a bearing formed in a bracket 81 on the frame, this bar being provided with a wedge member 82 arranged to engage a roll carried by a lever arm 84 which is fast on one end of a rock shaft 86. On its other end (Fig. 8) the shaft 86 carries a lever 88 the hub portion only of which is visible in the drawing, this lever having an opening through which loosely extends the lower end of a rod 90 the upper end of which is pivotally connected to a lever 92 which carries the latch 66. On the lower end of the rod 90 is a nut 94 which is engaged by the lever 88 to pull the rod and the latch downwardly and thus to release the slide 62 in response to the action of the plunger 72. A spring 96 connected at one end to the rod 90 and at its other end to the slide 62 serves to lift the rodand the latch 66 as far as permitted by the lever 88 and acts also through the rock shaft 86 to position the arm 84 initially in operative relation to the wedge member 82. The latch 66 is adjustably movable along the lever 92, and a screw 97 is provided for adjusting it.

It will be understood that when the slide 62 is released by the latch 66 in the manner above described, the lug 68 on the slide is carried to the left beyond the latch, so that in order to return the slide to its initial position it is necessary to move the latch 66 into heel band comprising a chain of connected a position at the left of the lug. For this purlinks 150 (Fig. 13) and a leather facing 152, pose the lever 92 is pivotally supported at the chain being connected at its opposite ends one end onthe upper end of a rocker arm 98 to blocks 154 each of which is pivotally mounted on a shaft 100 within a recess in the mounted on one end of an arm 156. Each vertically movable slide 34. At its lower end of the arms 156 is mounted between lugs 158 the arm 98 is formed as a gear sector 102 in (Fig. 8) formed on the horizontally movable engagement with a bevel-gear 104 fast on the slide 62 and is faston a rock shaft 160 mountupper end portion 106 of a telescopic shaft ed to turn in bearings in the lugs. "A spring the lower portion 108 of which is mounted 162 connected to the outer ends of the arms in a ,bearingin the frame of the machine and 156 tends to swing apart their other ends to has fast thereon a bevel-gear 110. It will thus which the heel band is connected and thus to be seen that the two parts of the telescopic maintain the band initially in an open posishaft are connected at all times regardless of tion. It will be understood that when the the position of the vertically movable slide supporting slide 62 is moved toward the shoe, 34 in which the upper portion 106 of the shaft as hereinbefore described, the heel band is is mounted. In engagement with the bevelwrapped about the heel end of the shoe, the gear 110 is a gear sector 112- operated by a pressure of the end face of the shoe on the crank arm 114, this arm being connected by a intermediate portion of the bandserving to link 116- (Figs. 3. and 7) to a bell-crank lever swing the arms 156 inwardly toward the sides 118 mounted on the frame of the machine. of the shoe against the resistance of the The bell-crank lever 118 is connected by a link spring 162. To assist in supporting the in- 120 (Figs. 3 and 5) to an arm 122 fast on a termediate portion of the band, the band rock shaft 124 and carrying a roll 126 enchain 150 carries a finger 164 (Fig. 13)

gaged by a path cam 128 formed in one side which is mounted in a recess formed in the of a cam wheel which is carried by a cam slide 62 and is free to swing horizontally in shaft 132. It will thus be seen that by the this recess to permit the band to conform itmechanism described, in the course of the self readily to each shoe regardless of any cycle of operations of the machine, the latch variations that there may be in the shapes 66 is carried to the left of the lug 68 on the or positions of different shoes.

slide 62, the spring 96 yielding to permit the For wiping the nargin of the heel end of latch to pass the lug, and is thereafter. re the upper inwardly over the insole there are turned toward the right to move the slide 62 provided heel-lasting wipers 166 (Fig. 12) and the heel-lasting mechanism carried therewhich are pivotally mounted on a pin 168 by to its idleposition away from the shoe carried by the head 170 of-a hollow plunger after the operations on the shoe have been 172 mounted for lengthwise movement and completed. v for turning movement in a holder 174. The There is also provided, in the machine hereholder 174 is provided with trunnions 176 in shown, means to enable the operator to remounted in bearings in a yoke-shaped upper turn the slide 62 to its initial position in case end of a plunger 178 (Figs. 8 and 13) which of its accidental release at any time or in case is square in cross-section and is movable it should be desired to return it for any other vertically in a recess in the slide 62. In the reason prior to the power operaticn of the plunger 178 is a spring 180 which tends to machine. This'means comprises a chain 134 move it upwardly, and to limit its upward connected at one end to the slide 62 and eX- movement the plunger carries a rod 182 extending over a pulley 136 on the bracket 71, tending downwardly through a bearing in the other end of the chain being connected to a bracket 184 fast on the slide 62, the rod a rod 138 (Fig. 4) the lower end of which eX- being provided with a nut 186 for limiting tends loosely through an opening in a treadle engagement with the bracket. Further sup- 140 pivoted on one end of a rock shaft 142 ports for the wipers 166are provided by (Figs. 1 and 7') hereinafter more particularly plungers 188 which are mounted in the heelreferred to. On the lower end of the rod 138 band-carrying arms 156 in locations spaced is a nut 144 which is acted upon by the treadle laterally of the shoe and are depressible to effect the return of the slide 62 to the posiagainst the resistance of springs 190 (Fig.

tion in which it is caught and held by the latch 8) the wipers being slidable over the upper 66. The treadle 140 is normally maintained ends of these plungers in their operative by a spring 146 high enough so that it is not movements. It will thus be seen that the heel affected by the normal operations of the slide wipers are yieldingly supported by the 62, as illustrated in Fig. 4, the upward moveplunger 17 8 at the rear thereof and by the ment of the treadle being limited by engagetwo plungers 188 beneath them, and that ment with the lower front casing 148 of the through the provision of the trunnions 176 machine at the upper end of a slot in the cas-' and the rotatable plunger 172 they may be ing through which the treadle extends. tipped about axes extending laterally and For clamping the upper to the last about lengthwise of the shoe. The plungers supthe heel end of the shoe there is provided a port the wipers initially in a plane higher

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