US1881595A - Wood heel machine - Google Patents

Description

Oct. 11, 1932. w, HOWARD 1,881,595

WOOD HEEL MACHINE Filed Aug. 11, 1931 4 Sheets-Sheet 1 INVEN+DRZ M 10. 137 M QM WVA Oct. 11, 1932. M. w. HOWARD 'WOOD HEEL MACHINE Filed Aug. 11, 1931 V4 Sheets-Sheet 2 IIIII AIII MAM Oct. 11, 1932. M. w. HOWARD WOOD HEEL MACHINE Filed Aug. 11. 1951 4 Sheets-Sheet 3 Oct. 11, 1932. M. w. HOWARD WOOD HEEL MACHINE Filed Aug. '11. 1931 4 Sheets-Sheet 4 INVEN'l'UR: M IO. W I M QLM,C M+E:FE

Patented Oct. 11, 1932 v UETE STATES PATENT osFicE EIERTOIT W. HGW'ARD, OF LYNN, MASSACHUSETTS, ASSIGNOR TO POPE MACHINERY COR- PORATION, OF I-IAVERHILL, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS wooD Hunt MACHINE Application filed August 11, 1931. Serial No. 556,381.

In forming the concave seat in wood heels a central rib is left running from the breast edge of the seat towards the rear of the heel.

It has been common practice heretofore to remove this rib by hand by placing the heel in engagement with the cutter and moving the heel until the rib was removed. This has been a slow and tedious method and in many cases the heels were damaged.

It is an object of the presentfinvention to provide a machine which will remove the central rib from the heel seat accurately and quickly.

The invention will be more clearly understood from the following description in conjunction with the accompanying drawings, in

which 7 Figs. 1 and 2 are perspective views of a wood heel before and after the central rib :1 has been removed respectively.

Fig. 3 is an elevational view partly in section and partly broken away of a machine embodying the invention.

Fig. 4 is a plan view of the same.

Fig. 5 is a sectional view-takensubstam To the relationship of the work to the cutter in different positions of adjustment of the work v support.

Before explaining in detail the present invention, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practised or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and it is not intended to limit the invention beyond 7 the terms of the several claims hereto appended as considered in view of the prior art and the requirements thereof.

The machine illustrated in the accom panying drawings comprises a frame 10 hav- 0 ing a slide 11 suitably mounted for movement in guideways 12 in the frame 10. A scale 8 is secured to the frame 10 for indicating the proper adjustment of the slide 11 for a particular type of heel. The slide 11 is provided with suitable bearings 15 for rotatably receiving a cutter shaft 16 carrying a cutter 17. A work support 18 having an elongated slot 9 adapted to receive the cutter is provided with a plurality of depending lugs 19, each having an inclined surface adapted to engage inclined guides 20 forming part of the frame 10. The support 18 is held for adjustment on the guides 20 by a shaft 21 rotatably mounted in the frame 10 and provided at one end with a threaded portion 22 adapted to be received in a threaded socket 2.3 in the support 18. The shaft 21 is provided with a hand wheel 24; by which it may be rotated. A scale 7 is secured on the frame 10 for indicating the proper position of the work support for a given depth of concave.

A bracket 27 is carried by the support 18 and is adjustably secured thereto by a clamping bolt 28 passing through an elongated 'slot 29 therein and engaging the support 18.

A slide 30 having a T-shaped inner end is slidably mounted in a guide groove 31 in the bracket 27. A second slide 32 having a V- shaped inner end is slidably mounted above the slide 30 in suitable ways 4: (Fig. 3) in the bracket 27. The inner edge 33 of the bracket serves as a breast stop or guide for locating the position of the work W upon the support 18. A bracket 6 is suitably secured to the frame 10 and is provided with a scale 5 for indicating the proper position of the bracket 27 to position the breast stop 33 properly for a particular type of heel. A coil spring 13 is suitably secured at one end to the bracket 27 and its other end is adapted to engage a lug 44 extending upwardly from the slide 32.

A motor 65 is suitably mounted upon a platform 66. A pulley 67 fixed on the armature shaft 60 of the motor is connected with a pulley 68 upon the cutter shaft 16 by a belt 69. A pulley 7 0 on the armature shaft 60 is connected by a belt 73 with a pulley 71 mounted upon a shaft 7-2 rotatably supported in the frame 10. A pulley 75 fixed upon the is heldresiliently against the belt 69 by ,a'

sprin 135 one end of which is secured to the arm 5% and the other end of which is fixed to the frame 10.

' A vertically movable bar 85 is slidably supported at one end by a guide member 36 and at its other end in an opening 2 formed 1 in the top of the frame'10. The upper'end of the bar 85 passes through an elongated hole 87 formed in a lug 38 depending from the free end of an arm 39pivotally mounted upon a pin 40 carried in a bracket 41 forming part of the frame 10. The upper end of the rod 85 is surrounded by a sleeve 48 rest- ,ing upon thelug 88 and extending to within a short distance from a stop 49 u on the up per end of the rod. A shoulder 5 upon the rod 35 is normally held in engagement with the lug 88 by a spring 50 which surrounds the sleeve 48 and'extends between a flange on the lower endfof said sleeve and the stop 49. Downward movement of the rod 35 resisted b a s rin 46 surroundin the rod and extending between a collar 47 thereon and themem'ber 36. An arm 128 is .pivotally mounted upon a rod 129 suitably mounted in the frame 10 and'is adapted to engage a roll 181 carried by the bar 35. 'A roll 130 is mounted in the other end of the arm 128-and is adapted to engage the cam 81. The free end of the arm 39 is split to provide clamping portions 25 and '26 having cooperating portions of a vertical passage adapted to receive a bar 51 which is held therein by a clamp ing screw 42. The bar 51 is provided with ratchet teeth 53 adapted to engage a pinion 54 mounted upon a shaft 55 rotatably carried by the arm '89 and having a wheel 56 fixed thereon. A clamping block 63 providedwith "a lug 64 extending into the slot 62 in the lower end of the bar 51 is pivotally mounted therein and is held in adjusted position by a clamping screw 61.

An arm is fixed upon a shaft 86 which is mounted for rotation in suitable bearings 87 carried by the frame 10. A stud 88 is re tatably mounted in the free end of the arm 85 and is provided with a passage 89 adapted to receive a rod 90, the free end of which rests in the groove 31in the bracket 27 and in engagement with the slide 30. The rod 90 is suitably secured in th stud 88 by a set screw 1 91. An arm 98 is suitably fixed upon the shaft 86 and pivotallycarries a dog 94 having a recess 95 adapted to engage a pin 96 fixed upon an arm 97 pivotally carried by the shaft 86. A disk wheel 98 is fixed upon the shaft 77 and is provided with a peripheral groove 99 adapted to receive the free end of the arm 97. The free end of the arm 97 is provided with a cam surface 108 leading to a shoulder102. A clutch finger 100 is slidably mounted in the disk 98 so as to traverse the groove 99 therein and is provided with a shoulder 101 adapted to engage the shoulder 102 near the freeend of the arm 97; A

spring 104 is adapted to hold the finger 100 in any one of a plurality of radial grooves 105 in a disk 106 carried by the pulley 76. The disk 98 is provided with a cam 107 adapted to engage a cam surface 108 upon the free end of'the dog 94. i

A slide is mounted for movement in guideways 116in the frame 10. One end of an arm 117 is pivotally connected to the slide 115 and its other end is pivotally connected to links 118 pivotally carriedby a lug119 depending from the cutter carrying slide 11. A roll120 is mounted on the arm 117 at an intermediate point thereof and is adapted to engage the cam 80. The roll 120 is held in engagement with the cam 80'by apair of springs 121, one end of each of which is connected to the arm 117 and the other ends of which are connected to the frame 10. A shaft 122 carrying a hand wheel 123 is rotatably mounted in the frame 10 and is provided with a threaded portion adapted to engage a lug 125 on the slide 115.

A slide is suitably mounted in ways 141 in the frame 10 and is provided with a lug 142 adapted to receive the threaded portion of a shaft 148 suitably mounted forrotation in a bracket 144 carried by the frame 10. A shaft 145 mounted for rotation in the frame 10' andoprovided with a hand'wheel 146carries a'bevel gear 147 adapted to engage a bevel gear 148 on the shaft 143. .A. U-

shaped arm 150 is pivotally mounted at one .end upon the lug 142 and is provided at its other end with a roll 151 adapted to engage the cam 82. An arm 152 is pivotally mounted at one end to the frame 10 and its free end rests in a groove 158 in thearm 150. The

slide 11 is provided with depending portion 155 having a guide passage 156 adapted to receive a slide 157. Th lower end of the slide 157 is provided with a roll. 158 adapted for engagement with the arms 150 and 152.

The other end of the slide 157 is provided with a socket 160 adapted to receive a removable container 161 in which stamping dies 162 are carried. A'pin 3 projecting inwardly from the portion 155 of slide 11 into a slot 4 in slide 157 limits the downward movement of slide 157.

A shaft 165 provided with a handwheel 166 is adjustably mounted in the frame 10 and is provided at its inner end with a stop 167 for a purpose described hereinafter. A

bell crank 168 is pivotally mounted in a lug wheel 146 to move 169 on the frame 10. A roll 170 is carried by one arm of the bell crank and its other arm 171=is adapted to engage an eccentric 172 mounted upon a shaft 173 rotatably carried by the frame and provided with an operating wheel 174. The arm 171 is maintained in engagement with the eccentric 172 by a spring 175 one end of-which is secured screw 28 is loosened and the bracket 27 moved to bring the breast stop 33 to the proper position as indicated by the scale 5. The clamping screw 28 is then tightened. The work support is then adjusted to the proper position as indicated on the scale 7 by turning the hand wheel 24 carried by the shaft 21. The slide 11 carrying the cutter is then adjusted t0 the proper position as indicated by the scale 8 by turning the hand wheel 123 carried by the shaft 122. The mechanism for moving the slide 157 carrying the stamping dies 162 is then adjusted so that the stamping dies will produce the desired impression in the work by turning the hand the slide 140. The arm 90 is then swung out of engagement with the slide 30 and the'heel W is placed with its seat upon the surface of the support 18 and moved into engagement with the breast stop 33. A thin object, such as a feeler gauge, is then placed upon the top surface of the .eel and the clamping screws 42 and 61 are loosened. The wheel, 56 is then turned to rotatethe pinion 54 to move the bar 51 downwardly to bring the clamping block 63 into engagementwith the feeler gauge on the heel. The clamping screws 42 and 61, are then tightened and the feeler gauge removed, and arm 90 swung back into operating e11- gagement with slide 30.

In theoperation of the machine the work W is moved along the surface of the support 18 into engagement with the V slide 32 which approximately positions the heel with respect to the cutter. Further movement of the work WV brings it in engagement with the T-slide 30 which further assists in positioning the work, the final position of the heel being determined by engagement ,of the breast thereof with the stop 33. During the positioning of the heel on the support 18 the movement of the slide 32 compresses the spring 43 while the movement of the slide 30 moves the rod 90 to cause rotation of the shaft 86. The rotation-of the shaft 86 swings the arm 93 causing the dog 94 to lift the arm 97 out of engagement with the clutch finger 100 transversing the groove 99 in the disk 98, thereby permitting the clutch finger to be moved by the spring 104 into engagement with one of the slots 105 in the disk 106 and causing rotation of the shaft 77 carrying the disk 98 and the cams 80, 81 and 82. As the disk 98 rotates the cam 107 carried thereby engages the cam surface 108 on he dog 94, thereby releasing the pin 96 and permitting the arm 9'? to drop back in the groove 99 in the, disk 98. The rotation of the cam 81 swings the arm 128 to move the bar downward causing the clamping block 63 to engage the work W' with a resilient pressure due to the action of the spring 50.

The initial rotation of the cam permits the springs 121 to swing the arm; 117 to move the slide 11 to the right as viewed in Fig. 3 to move the cutter 17 toward and in engagement with the work 1V. Further rotation of thecam 80 causes it to move the arm 117 in the opposite direction to move the cutter 17 out of engagement with the work. The range of lateral movement of the axis of the cutter is such as to cause the cutter to remove the central rib B (Fig. 1) to produce a smooth concaved surface on the seat S of the heel as shown in Fig. 2. As the slide 11 moves to the right as viewed in Fig. 3 the roll 158 carried at the lower end of the slide 157 follows along'the upper surfaces of the arms 150 and 152 until the pin 3 engages the top of the slot 4. Thus, as the slide 11 moves further to the right as viewed in Fig. 3 the pin 0 maintains the slide 157 in proper position to bring the stamping dies into engagement with the inking roll 170. The arm 152 serves to retard the fall of slide 157 as the slide 11 moves to the right to bring the dies 162 under the inking roll 170. As the cutter moves out of engagement with the work the proj ction A on the cam 82 engages the roll 151 to cause the arm 150 to move the slide 157 upwardly to bring the stamping dies 162 into engagement with the work. The initial engagement of the stamping dies 162 with the work tends to move the work upwardly and swing the arm 39 upwardly a slight amount until the top of the sleeve 48 engages the stop 49 thereby positively resisting the action of the stamping dies 162 and permitting the same to produce a desired impression in the seat of the heel. When the shaft 77 has completed substantially one revolution, the shoulder 101 on the clutch finger 100 engages the cam surface 103 on the end of the arm 97 causing the finger 100 to move out of engagement with the slot 105. The rotation of the shaft 7 7 is stopped by engagement with the finger 100 with the shoulder 102 on the arm 97. When the roll 130 drops into the recess B in the cam 81, the clamping block 63 is released from the work permitting the spring 43 to move the slide 32 and eject the work. If it is desired to stamp the heel near the rear of the heel seat, the shaft 122 is rotated to adjust the cutter slide 12 toward the right as viewed in Fig. 3. When so adjusted the stop I 167 is adjusted so as to limit'the range of movement of the slide 12 to prevent the cute ter engaging the marginal. edge at the rear of the heel seat.

The invention provides a machine capable of being adjusted'to remove the central rib quickly, accurately and automatically from the seat of any type of wood heel, the operator merely feeding the heels successively to the machine. Due to the fact that the heels are automatically accurately located in operati-ve position in the machine. and are clamped therein by a resilient pressure, there is little danger of loss due to injury to the heel. The adjustment of the work support when; adjusting the machine for working on heels having adeeper cut in the seat automatically venting the cutter engaging the marginal edge at the rear of the heel seat. I

I claim:

1. In combination, a work support, arotatable cutter, means for positioning the work on the support, means adapted to clamp the workon the support, means for moving the cutter to cause its axis to move laterally to bring the cutter into and out of engagement with the work, actuating means for rendering said clamping means and cutter moving means operative and thereafter renderingthe clamping means inoperative, and means rendered operative by said actuating means for stamping the work when the cutter has moved out of engagement-therewith,

2. In combination, a work support, a rotatable cutter the axis of which is movable laterally to bring the cutterin engagement with the work, means for clamping the work on the support, means for positioningthe work upon the support, actuating mechanism, and means actuated by said positioningmeans for rendering said actuating mechanism operas tive to clamp the work on the supportand move said cutter into and out of engagement with the work.

3. In combination, a work support, a rotatable cutter the axis of which is movable laterally to bring the cutter in engagement with the work, means for clamping the work on the support, means for positioning the work on the support including a slide, means for ejecting the work including a resilient member resisting the movement of the slide, actuating mechanism, and means actuated by said positioning means for rendering said actuating mechanism operative to clamp the work on the support and move said cutter into and out of engagement with the work and thereafter release said clamping means and'per mit said'sli'de to eject the work.

' l. In'combination, a work support, a rotatable cutter the axis of which is'movable laterally to'bring the cutter in engagement with the work, means for clamping the'work onthe support, means for positioning the Tw'orkon the support including a slide, and

means actuated by said slidefor rendering the clamping 111163-118 and cutter moving 'means operative.

the work, and means adapted to engage said stamping die to apply ink thereto as said member is moved. properly ad usts the breast stop, thereby pre- 6; In combination, a work support, means for clamping the-work on the support, a member movable toward and away from the work, a cutter rotatably carried by said member, a slide carried by said member, a stamping die actuated by said slide, means for moving said member to'move the cutter toward and away from the work, means for movingsaid slide toward and away from the'work when said cutter has moved away from the work, means for changing the limits of travel of said member to change the location of the impression produced by said die on the work, and means for'limiting the movement of the cutter toward the work.

7.- In combination, a work support, means for clamping the work on the support, a member movable toward and away from the work, a cutter rotatably carried by said member, a slide carried by said member, a stamping die actuated by said slide,

means for moving said member to move the cutter toward *and away from the work, means for moving said slide toward and away from the work when said cutter has moved away from the work, means for adjusting the range of movement of said slide, and adjustable means adapted to engage said stamp to apply ink thereto as said member is moved.

8. In combination, a frame, a rotatable cutter, a work support mounted'in said frame for adjustment in a vertical and horizontal direction toward and away from the cutter, awork guide carried by the support, means 'for clamping'the work on the support, and

means for moving the cutter to cause its axis to move laterally to brmg the cutter into and out of engagement with the work..

- 9. In combination, a frame, a rotatable cutter, a work support mounted in said frame for adjustment in a vertical and horizontal 3 direction toward and away from the cutter, 'a'work guide adjustably carried by the support, means for clamping the work on the support, and means for moving the cutter to cause its axis to 'move laterally to bring the cutter into and out of engagement with the work.

10. In combination, a support adapted to receive work, a rotatable cutter movable toward and away from the work, a stamping die movable toward and away from the work, means for successively moving said cutter and die into and out of engagement with the work, and clamping means adapted to engage the work with a resilient pressure when the cutter engages the Work and with a rigid pressure when the work is engaged by the die.

11. In combination, a support adapted to receive work, a rotatable cutter movable toward and away from the work, and means for clamping the workon the support comprising a bar adjustable toward and away from the'work, a clamping block adjustably mounted on the bar, means for'moving the cutter into and out of engagement with the work, and means for causing said clamping block to engage the work with a resilient pressure while said cutter engages the work and thereafter release said pressure.

In testimony whereof I afix my signature.

MERTON W. HOWARD.

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