US2160843A - Driver-adjusting means for fastening-inserting machines - Google Patents

Description

June 6, J. DURAN DRIVER-ADJUSTING MEANS FOR FASTENING-INSERTING MACHINES Filed July 7, 1958 64 86 74 I[[ 43 40 //\/l/EN ram 56 fl M Y between Patented June 6, 1939 PATENT GFFlCE DRIVER-ADJUSTTNG MEANS Fort FASTEN- ING-INSERTING MACHINES John A. Duran, -Beverly, Mass assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application July 7, 1938,'Serial No. 217,961

12 Claims.

In machines for'inserting fastenings; as those by which nails are driven' forattaching heels or heel-portions to shoes-the extent to' which the drivers insert the nails is important and may call for variationas thech'aracterof the work changes. For example, in attaching rubber'lifts or whole helsfthe heads of the nails should reach pointsin the workwhich bear a definite relation tothe washers or otherreinforcing means molded in the rubber. I'f the nail-heads do not arrive at the reinforcement, the attach- "m'ent will be insecure. If they are driven too deeplywith respect to'the washers,'the heel will be distorted. If the reinforcement is in the form of a'sheet of fabric, the heads may pass through it, and its effect be lost. Since the'distance between thetread surfaces of the'heels and their reinforcements differ for different makes and sizesfthe operator of the-heel-attaching machine is called upon to adjust the drivers upon their actuating member, so the extent 1 of their -projection into or through the nailing-die will vary. Means has heretofore been furnished for effecting such an adjustment, as bya wedge interposed the actuating memberand the plate carrying the drivers and movable and retained in its adjusted position by a screw. This,'while accomplishing the desired end, is a comparatively slow and troublesome proceeding, and it is an object of the present invention to effect the adjustment'of the drivers speedily and with little effort on thepart of the operator.

In theattainment of the above object, I combine with such a reciprocatory driver-actuating member as the crosshead of a heel-attaching machine or other fastening-inserting apparatus and a plurality of drivers mounted upon'such member, anadjusting member, movable through direct engagement by the operator, and a member en- 40 gaging the adjusting member and also movable by the operator. By this direct movement of the adjusting member, the projection of the drivers from the actuating member into the c'o-operating die may be changed rapidly, until their relation 46 is'approximately correct, while by a more gradual movement of the second member, the final adjustment may be made to the slight additional extent required to give the exact location of the driver-ends sought; The adjusting member may 50 be moved and locked for the first adjustment and then moved independently of the condition of the lock for the second adjustment. Morespecifically, the adjusting member is formed in relatively movable portions, onebemg herein shown as the form of .awedge'movable-upon the crosshead,

and upon which the plate carrying the drivers rests, while the other portion consists of a toothed slide movable upon the wedge. The two portions by a screw threaded into said wedge and engaging the locked slide, a fine and accurate adjustment may quickly be made. The extent of these ad- 10 justments may be determined by indicating means, as by a scale carried by the wedge and visible outside the driver-plate.

In the accompanying drawing,

Fig. 1 shows in perspective a particular embodil ment of my invention, applied to amachine for attaching rubber lifts to heels;

Fig. 2 is a broken plan view of the driver-plate and more-closely associated elements; A

Fig. 3, a full vertical section on the line III-III-"20 of Fig. 2;

' "Fig. 4, a sectional detail corresponding to Fig. 3 I but showing the locking member released, while in of Letters Patent of the United States No.

1,365,802, Standish, January 18, 1921. Mounted for vertical reciprocation in the frame ID of the -machine is an upper crosshead l2 and a lower crosshead l4. The former crosshead is carried and guided by rods l6, and the latter by a spindle I8and sleeves 20 surrounding the rods. In the crosshead I2 is mounted a nailing-die 22, with which is associated the liftor heel-holder 24 of the previously mentioned patent, this being movable into and out of operating position above the die under the control of the usual loader-arm 26. Upward movement of the crosshead l2 serves to-4o force a lift in the holder 24 against a heel-base attached to a shoe supported upon a jack, this jack not being included in the drawing. Movable v in passages 28 in the die are nail-drivers 30, these being assembled in a group upon a plate 32. The 45 plate with its drivers is reciprocated by the cross- "head I4 to cause the insertion in the work of nails resting upon the upper ends of the drivers.

in this position to meet the requirements ofdifferent reinforcements in the lifts, orothe'r work- .5

- gages a pin 58 bridging the slot 54.

conditions, is obtained in the following manner. The driver-plate 32 is received in ways 34, 34 formed at opposite sides of an adjusting Wedge or slide 36, said plate resting upon a horizontal surface 38 of the wedge between the ways. The lower, upwardly and rearwardly inclined surface 40 of the wedge is carried upon a similarly inclined surface d2 of the crosshead l4. As the wedge is thrust rearwardly or drawn forwardly, its movement up or down the inclined surface 42 will cause the driver-assembly to be correspondingly raised or lowered. The adjustment thus obtained is releasably held by a detent 44 rising from a plunger 46 movable vertically in a bore in the crosshead M beneath the wedge-slide. The detent may enter between any two of a series of inclined teeth 58 carried by the wedge, said detent being forced up by expansion-springs 5B, 55 beneath it. If the drivers are to be raised, the inclination of the rear faces of the teeth, which is toward the front of the machine, allows the movement of the wedge to be made without a special act on the part of the operator'to release the detent. This is because the complemental inclination of the forward face of the detent will cause it to be camrned down by the pressure of the teeth. If the drivers are to be lowered, the wedge is freed from the lock applied by the detent, through the action of a plunger 52, movable in a horizontal bore in the rear of the crosshead. The forward extremity of the plunger is reduced laterally to enter a slot 54 at the bottom of the detent-plunger it; Upon the lower edge of this reduced portion is a cam-incline 56 which en- Normally, the plunger 52 is urged rearwardly by an expansion-spring 6t, surrounding it outside the crosshead, this being to an extent permitted by the engagement of its hooked forward end 62 with the pin 53. This leaves the detent free to assume its locking position. When the operator wishes to lower the drivers, he presses in the plunger 52, so its edge 56 depresses the detent. Thereupon, the released wedge may be drawn forward. Just after the detent id has been withdrawn from the teeth 48 by the cam, the forward end of the body of the plunger 52 contacts with the plunger 36, preventing excessive releasing movement of the former plunger. The travel of the wedge in both directions may be limited by screws 63, 53, threaded oppositely into the ends of said Wedge, with their heads projecting over the adjacent edges of the crosshead M.

The movement of the wedge just described gives a very rapid adjustment, but with this alone, it might be difiicult to locate the drivers at the exact height desired. An additional fine adjustment is therefore furnished. The locking teeth 48 are formed not as an integral part of the sliding wedge 36 but on a secondary sliding portion H, which is movable upon the wedge. The under side of the wedge is slotted at fifi to receive the slide 64, and the two sliding elements are connected by a screw 68 threaded into the wedge and having near its forward extremity a circumferential flange ill entering a transverse groove 12 in the slide 64. When the screw 68 is rotated by a head or finger-piece 14, the wedge may be moved in or out, while the slide 64 remains locked to the crosshead by the detent 44. By this means, there may readily be obtained a precise final adjustment, if that given by the movement of the compound slide 38, 84 was not correct. The screw 68 may be retained in the position to which it has been turned, by a spring-detent 16 attached to the under side of the slide 64 and entering any one of a series of depressions 18 formed about the periphery of the flange 10.

To relieve the operator of the necessity for making measurements of the location of the upper ends of the drivers, indicating means is provided. This is shown as a scale 80 lying in a depression in the upper face of the wedge 36 near one side and having inscribed upon its upper surface graduations 82, which may correspond to lifts or heels of different characters. These graduations may be referred to some index-line, as that furnished by the forward edge 84 of the driver-plate 32. Each numbered graduation may correspond to driver-adjustments of one-thirtysecond of an inch, and also to the successive steps of the coarse adjustments furnished by the teeth 48. The intermediate unnumbered graduations may represent variations of one-sixty-fourth of an inch, attained by rotation of the screw 68. To furnish a preliminary adjustment of the scale with respect to its index-line, the former is shown as variable in position upon the wedge by a slotand-screw connection 86.

An example of the Work in connection with which the present invention is of especial utility is illustrated in Fig. 5 of the drawing. Here, a heel-base H has been attached to a shoe, and to this a rubber lift L has been secured by nails, one of which appears at N, these nails having their heads driven into full engagement with washers W molded into the lift. By the adjustments of the driver-assembly hereinbefore described, the relation of the nail-heads to the washers may be accurately established for this or similar work, with the expenditure of a minimum of time and effort by the operator.

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

1. In a fastening-inserting machine, a reciprocatory actuating member, a plurality of fastening-drivers mounted upon the actuating member, an adjusting member movable through direct engagement by the operator to effect a relatively rapid change in the projection of the drivers from the actuating member, and a member engaging the adjusting member and movable by the operator to effect a more gradual change in the projection of the drivers.

2. In a fastening-inserting machine, a reciprocatory actuating member, a plurality of fastening-drivers mounted upon the actuating member, an adjusting member movable upon the actuating member to vary the projection of the drivers therefrom, means for locking the adjustingmember upon the actuating member or for releasing it for movement, and means acting independently of the condition of the locking means for moving the adjusting member.

3. In a fastening-inserting machine, a reciprocatory actuating member, a plurality of fastening-drivers mounted upon the actuating member, an adjusting member movable upon the actuating member to vary the projection of the drivers therefrom, said adjusting member having relatively movable portions, means for releasably locking one of the portions of the adjusting member to the actuating member, and means arranged to move portions of the adjusting memberrelatively to each other.

4. In a fastening-inserting machine, a reciprocatory actuating member, a plurality of fastening-drivers mounted upon the actuating member,

an adjusting membermovable upon the actuating member to vary the projection of the drivers therefrom, said adjusting member having relatively movable portions, means for releasably locking one of the portions of the adjusting member to the actuating member, means arranged to move portions of the adjusting member relatively to each other, and indicating means by which the extent of movement of the adjusting means for work of difierent characters may be determined.

5. In a heel-attaching machine, a nailing-die, drivers movable therein, a plate upon which the drivers are mounted, a reciprocatory crosshead carrying the plate, an adjusting member interposed between the crosshead and the plate and having relatively movable portions, said adjusting member being arranged for movement of its portions together by the operator to effect a comparatively rapid change in the projection of the drivers into the die, and means arranged to produce the relative movement of the portions of the member to change more gradually the projection of the drivers into the die. i

6. In a heel-attaching machine, a nailing-die, drivers movable therein, a plate upon which the drivers are mounted, a reciprocatory crosshead carrying the plate, a driver-adjusting member interposed between the crosshead and the plate,

said adjusting member having two portions, means for releasably locking one of the portions to the crosshead, and means arranged to produce relative movement between said portions.

'7. In a heel-attaching machine, a reciprocatory crosshead, a driver-plate carried thereby, an adjusting slide movable upon the crosshead and upon which the driver-plate rests, a locking slide movable upon the adjusting slide, a movable locking member connecting the locking slide to the crosshead, and means arranged to produce relative movement between the slides.

8. In a heel-attaching machine, a reciprocatory crosshead, a driver-plate carried thereby, an adjusting slide movable upon the crosshead and upon which the driver-plate rests, a locking slide movable upon the adjusting slide, a movable locking member connecting the locking slide to the crosshead, means movable upon the crosshead for releasing the lock, and means arranged to produce relative movement between the slides.

9. In a heel-attaching machine, a reciprocatory crosshead, a driver-plate carried thereby, a wedge-slide movable upon the crosshead and upon which the driver-plate rests, a toothed slide movable upon the wedge, a detent movable upon the crosshead and engaging the teeth of the slide, and a screw threaded into one of the slides and engaging the other.

10. In a heel-attaching machine, a reciprocatory crosshead, a driver-plate carried thereby, a wedge-slide movable upon the crosshead and upon which the driver-plate rests, a scale carried by the wedge and being visible outside the driver-slide, a toothed slide movable upon the wedge, a detent movable upon the crosshead and engaging the teeth of the slide, and a screw threaded into one of the slides and engaging the other.

11. In a heel-attaching machine, a reciprocatory crosshead, a driver-plate carried thereby, a wedge-slide movable upon the cross head and upon which the driver-plate rests, a toothed slide movable upon the wedge, a spring-actuated detent movable upon the crosshead and engaging the teeth of the slide, a releasing member movable upon the cross head and provided with a cam-surface acting upon the detent, and means acting upon the slides to move them relatively to each other.

12. In a heel-attaching machine, a reciprocatory crosshead, a driver plate carried thereby, a wedge-slide movable upon the crosshead and upon which the driver-plate rests, a toothed slide movable upon the wedge, a detent movable upon the crosshead and engaging the teeth of the slide, a spring-actuated plunger movable upon the crosshead, said plunger having a portion acting upon the detent to retain the two in co-operation and a portion acting upon the detent to separate it from the teeth, and a screw threaded into one of the slides and engaging the other.

JOHN A. DURAN.

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