US1284784A - Heel-building machine. - Google Patents

Description

C. 0. RYBERG.

HEEL BUILDING MACHINE.

' APPLICATION FILED MAR. 8.1918.

1,284,784. Patented Nov. 12, 1918.

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APPLICATION min MAR. 8. 191B.

1,284,78 Patented Nov. 12, 1918.

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APPLICATION FILED MAR. a. 1918.

Patented Nov. 12, 1918.

I? ll qizrl C. O. RYBERG.

. HEEL BUILDING MACHINE. APPLICATION FILED MAR. a. 1918.

1,28%;784. Patented Nov. 12, 1918.

Q 4n SHEET$-$HEET Elbe/7&7? (TharZes a @Zqigg CHARLES O. RYBERG, F BROCKTON, MASSACHUSETTS.

HEEL-BUILDING MACHINE.

Application filed March 8, 1918.

To all whom it may concern:

Be it known that 1, CHARLES O. RYBERG, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented new and useful Improvements in Heel-Building Machines, of which the following is a specification.

This invention relates to machines for cutting heel lifts from blanks of suitable material and forcing the lifts progressively into and through an, elongated guide or chute, from the lower end of hich the lifts drop, the lifts being preferably cemented together in groups during the building operation, each group constituting a heel body which drops independently from the chute, the elongation of the chute being such that the cement has time to dry or harden while the heel bodie are passing through the chute.

The invention is embodied in the several improvements which I will now proceed to describe and claim.

Of the accompanying drawings forming a part of this specification,

Figure 1 is a front elevation of a heelbuilding machine embodying the invention.

Fig. 2 is a fragmentary elevation illustrating parts of the mechanism employed for starting and automatically stopping the platen which cooperates with a cutting die, as herelnafter described.

Fig. 3 is a top plan view of a portion of the bed of the machine, showing one of the cutting dies and parts of the operating mechanism, the upper portion. of the machine including the platen, being removed,

Fig. 4 is a section on line 4-4 of Fig. 3.

Fig. 5 is a fragmentary side elevation, showing parts of the machine.

Fig. 6 is a fragmentary side elevation illustrating the registering means hereinafter described.

Fig. 7 a perspective view of one of the indicator fingers, shown by Figs. 3 and 4.

Figs. 8 and 9 are sectional views of the platen. the cutting dies being shown by dotted lines.

Fig. 10 is a top plan view of a portion of the glue reservoir hereinafter described.

Fig. 11 is a section on line 1111 of Fig. 1.

Fig. 12 is a perspective view of the plun- Specification of Letters Patent.

Patented Nov. 12, 1918.

Serial N0. 221,304.

ger shown in section by Fig. 4, parts of the plunger being separated.

Fig. 13 is a perspective view of the filling member shown by dotted lines in Fig. 12.

Fig. 14 is a view similar to a portion of Fig. 4, illustrating a modification.

Fig. 15 is a section on line 15 Figs. 1 and 10.

Fig. 16 is a section on line 1616 of Fig. 4.

Fig. 17 is a view similar to a portion of Fig. 4, showing a different stage of the operation.

The same reference characters indicate the same parts in all of the figures.

I will for the present exclude from the description the construction shown by Fig. 14.

12 represents the fixed bed of the machine supported by legs 13, (Fig. 1). To the bed is attached by screws 14, (Figs. 3 and 4), a die block rest including a fixed member 15, formed as a frame having a relatively large heel-shaped socket communicating with an opening 16, (Fig. 4), in the bed, the wall of said socket being preferably tapered, and a tapered lining or bushing 17, removably seated on the socket wall and forming the rest opening, the size of which may be varied, by using different bushings interchangeably. Two vertical rods 18, movable vertically by means hereinafter described in guide orifices in the bed 12, are provided at their upper ends with bearings 19 in which are journaled two alined horizontal shaft or trunnion members 20, 20, the inner ends of which are secured, as by set screws 21, 22, to a heel-shaped die block 28.

To opposite sides of the block 23 are attached tw heel-shaped cutting dies 24, facing in opposite directions, each die having slotted ears (Fig. 3), attached by screws 26 to the die block. The under side of the die block is seated loosely on the rest formed by the member 15 and bushing 17, the downwardly facing lower die projecting into and through the opening in the rest. The upwardly facing upper die is therefore rigidly supported by the die block and adapted to cooperate with the reciprocating platen hereinafter described, in cutting heel-lifts from material placed on the upper die, each lift being forced by the platen into the upper die. Z (Fig. 4), represents an upwardly facing heel-lift which has been out and forced into the upper die. After enough lifts for a heel body have been thus deposited in the upper die, the die block is first raised to remove the lower die from the rest opening, as shown by dotted lines in Fig. 5, and a half rotation is then manually imparted to the die block to invert the group of lifts, the die block being then lowered and again seated on the rest, to permit the ejection of the group of lifts into a vertical elongated lift guide or chute, located below the die block and adapted to receive and guide a plurality of groups which are ejected into the upper end of the chute, and are forced downwardly therein. Said chute may be composed of sections -2727 and 28, (Figs. 4 and 16), which may be rendered adjustable relatively to each other, and rigidly supported by any suitable means. As shown by Fig. at, the adjusting and supporting means may include screws 29, 29*, journaled to rotate without endwise movement on the frame, and suitable connections between said screws and the chute sections including slidable tapped members 29 29 engaged with the screws and with the chute sections. The lifts of each group are cemented together and constitute a heel body. The top and bottom surfaces of each body are preferably left non-adhesive, so that each heel body, on reaching the lower end of the chute, which is open, drops into a receptacle under the chute.

The means here shown for manually raising and lowering the heel block and dies in-,

cludes a rock-shaft 30 (Figs. 1 and 4t), rocker arms 31 attached to said rock-shaft and pivoted at 32 to the lower ends of the rods 18, and an arm 33 attached to one end of the rock-shaft and provided with a handie 34. When the operator moves the arm 38 in the direction of the arrow, (Fig. 1), the rods 18 are raised and act through the members 20 to raise the die block and dies.

- with diametrically opposite depressions 38,

(Fig. 6) cooperating with the detent to yieldingly retain the die block after a half rotation.

The depth of each die is such that it is adapted to receive a group of lifts forming one heel body, the upper the remaining in a fixed position until it has received the group of lifts, as shown by Fig. 17. The lifts act through a plunger 39, (Figs. 4: and

12), to eject from the lower die into the chute a previously assembled group of lifts. Said plunger is movable in a guide opening in the die block, and is provided at its opposite ends with oppositely facing heelshaped heads 40, having a sliding fit in the dies. lVhen one die has received a group of lifts, the entire group previously inserted in the other die is ejected therefrom into the chute, so that the die block and dies may be raised preparatory to a partial rotation, which inverts th last assembled group of lifts and prepares them for ejectment into the chute.

The heads 40 are spaced apart to permit the insertion of a plurality or group of lifts in the upper die, so that said lifts may be united in the upper die by glue applied, as above described, to surfaces of said lifts, the plunger being displaceable by a group of lifts inserted and united in the upper die to eject a group of united lifts from the lower die.

To inform the operator when a group of lifts is completed in the upper die, I provide at each side of the die block an indicator which is a finger 42, (Figs. 3, i and 7), having an enlarged shank 4,3 movable in a recess a l in the plunger 39, and guided by a steady pin 47. The finger &2 at the upper side of the die block, is normally held by a spring {15 above a slot 426 in the die block, and projects through an opening in the die, so that it' may be seen by the operator. /V hen a group of lifts has been completed inthe die, the finger is pressed into the slot 46, its position indicatmg that the group has been completed. When the die block is inverted, the finger 42, now flush with the lower surface of the die block, bears on the upper surface of the rest bushing 17, until the die block is again inverted, the spring 4:5 then raising the finger from the slot in the die block.

The lifts may be solid and cut from a strip Z of leather-board, or other suitable material, or they may be composed of pieces Z cut from waste scraps of material such as leather. In practice, I prefer to use two or more solid lifts and one or more pieced lifts for each heel body. In either case, the material is deposited on the upper die and cut by the cooperation with said die of a reciprocating platen.

I provide means shown by Figs. 10 and 15, for guiding a strip Z to the upper die, and at the same time, coating the under side of the strip with glue, said means including a glue reservoir 50, a corrugated glue-applying roll 51 partly immersed in the glue, and spring fingers 50 adapted to hold the strip against the upper portion of the roll, the arrangement being such that a strip Z may be drawn by the Operator over the roll 51 and upon the upper die 2 which 4 S9 with the slide 74.

is located adjacent to one end of the reservoir 50, as shown by Fig. 15. In making pieced lifts the operator assembles the pieces Z on the upper die, after coating said pieces with glue by means of a hand-operated brush. As shown by Figs. 10 and 15, the reservoir 50 is provided with a glue conduit 54: communicating with a vertical well 55 in which the brush may be inserted to receive glue. A brush rest 56 formed by a flange surrounding the well 55, is provided to support the brush when it is not in use. To enable the operator to form straight abutting edges on the pieces Z I provide an edging mechanism shown by Figs. 1 and 11, and including a frame having end uprights 58 attached to a bracket 59 bolted to the frame of the machine, and shearing cutters 60 and 61, the cutter 60 being fiXed and the cutter 61 being vertically reciprocated by eccentrics 62 fixed to a horizontal shaft 63, straps 6% on the eccentrics, and a carrier 65 for the cutter 61, pivoted at 66 to the straps, the carrier being engaged with suitable fixed vertical guides in the uprights 58. The shaft 63 may be continuously driven by a sprocket-chain 67 engaged with a sprocketwheel 68 secured to a pulley 79 which is continuously driven by a belt, and a sprocket-wheel 69 on the shaft 63. The edging apparatus is conveniently located adjacent to the upper die and above a fixed tray 72 adapted to contain a supply of leather scraps. The platen which cooperates with the upper die, includes a ositively reciprocated head 73, (Figs. 8 an 9), attached to a slide 74 which is reciprocated in fixed vertical guides 75 by power suitably communicated from a shaft 70, which is driven by the pulley 79, through a clutch (not shown), one member of which is carried by the pulley 79, and the other by a pulley 78 attached to the shaft 70. Means (not shown) may be provided for impart ing oscillating motion from the shaft 70 to a rocker-arm 88, which is connected by a link Means may also be provided for automatically stopping the motion of the platen head after it has made one downward and one upward movement, the platen head remaining at rest in a raised position until it is again started by an act of the operator.

Connecting mechanisms or automatic stop motions organized to be operated as above indicated, are well known, and therefore do not require full illustration and description, it being sufficient to say that the members of the clutch connecting the pulleys 79 and 78 may be interengaged by the depression of a foot lever 80, or a hand lever 81, and separated by automatic means including a vertical rod or strut 82, secured at its lower end to the platen head 73, and acting at the end of the upward movement of the platen head through connections with the foot lever, said connections including a lever 83, a rod 84, a lever 85, and a rod 86, (Fig. 2).

It will now be understood that when the rises, it remains at rest until the hand lever or the foot lever is again depressed.

While my invention does not relate to the platen starting and stopping mechanism, any suitable form of which may be employed, it includes a safety device on the platen adapted to guard against injury to the operators digits, in case they project, as indicated by Fig. 9, between the lift material and the platen when the latter is descending.

Referring to Figs. 8 and 9, 90 represents a loose platen head provided with a brass facing 90*, adapted to contact with the die without injury thereto, and with an upstanding flange 91 surrounding the positively reciprocated head 73, said flange having hooked ears 92 engaging and adapted to rest loosely on a shoulder 93 on the head 73. The loose head 90 has a stem 95 and a steady pin 96, fitted to slide in vertical orifices in the head 73. The weight of the loose head is suflicient to cause it to normally assume the position shown by Fig. 8, the ears 92 resting on the shoulder 93. The loose head is therefore adapted to be seated on the lift material during the descent of the platen, the weight of the loose head being suflicient to hold the lift material on the die while the head 73 is completing its downward movement, said head abutting against the loose head, so that the latter is positively pressed against the lift material.

In case, however, the operator carelessly allows his forefinger and thumb to remain in the path of the descending platen, the loose head yields, as shown by Fig. 9, and imparts a warning pressure before it is positively advanced by the head '73, so that the operator has time to withdraw his finger and thumb, and thus avoid serious injury.

96 (Fig. 13), represents a heel-shaped fill ing piece, adapted to be applied to the plunger 39, as indicated by dotted lines in Fig. 12, in case the operator desires to build a relatively thin heel body, or one composed of a relatively small number of lifts. Two of these filling pieces may be employed, one for each head 40.

Referring to Fig. 14, it will be seen that the plunger 39 is omitted. the die block 23 having an enlarged heel-shaped opening conforming to the internal surfaces of tin dies 24, so that lifts cut by the upper die pass through said die, through the die block,

and through the lower die. In this modification, the die block is inverted only when it becomes desirable, on account of wear of the cutting edge of the upper die, to bring the lower die into cutting position.

At the commencement of the operation, the operator deposits lift material on the upper die. In case the lift material is a strip Z the operator draws the strip across the glue-applying roll 51, thus coating its under side with glue, so that the cut lift is caused to adhere to a lift previously inserted in the die. A pieced lift may be formed by assembling a. suitable number of pieces on the die, each piece being first provided with a straight edge by inserting a portion of it between the cutters 60 and 61. The operator assembles a suitable number of pieces to cover the upper die, and at the same time abuts the straight edges, formed as last described, closely together. The pieces may be coated with adhesive by the use of a brush dipped in the well 55. When the plunger 39 is employed, the lift-forming operation is repeated until a group of lifts is deposited in the upper die, and the corresponding group of lifts is ejected from the lower die, as indicated by Fig. 17 after which the operator raises and inverts the die block, thus preparing the group of lifts which were inserted in the upper die for ejection into the chute.

As shown by Figs. 10 and 15, the reservoir 50 is provided with guides 50*, arranged to bear on the edges of the strip Z and guide the strip to the adjacent cutting die. The strip is pressed against the roll 51 by spring fingers 50 I claim:

1. A heel-building machine comprising a fixed open rest, a revoluble die block movably seated on said rest and having oppositely projecting lift-cutting dies, a plunger movable between the cutting edges of said dies and having oppositely facing heads which are spaced apart to permit the insertion of a plurality or group of lifts in the upper die, so that said lifts may be united in the upper die by glue applied to surfaces of the lifts, the plunger being displaceable by a group of lifts entering the upper die to eject a group of united lifts from the lower die, and block-raising and lowering means on which the die block is revolubly mounted.

2. A heel-building machine comprising a fixed open rest, a revoluble die block movably seated on said rest and having oppositely projecting lift-cutting dies, a plunger movable between the cutting edges of said dies and displaceable by a group of l fts entering one die to eject a group of lifts from the other die, block-raising and lowering means on which the die block is revolubly mounted, and means adapted to indicate the number of lifts inserted in the dies.

3. A. heel-building machine comprising a fixed open rest, a revoluble die block movably seated on said rest and having oppositely projecting lift-cutting dies, a. plunger movable between the cutting edges of said dies and displaceable by a group of lifts entering one dieto eject a group of lifts from the other die, block-raising and lowering means on which the die block is revolubly mounted and indicator fingers yieldingly supported at opposite sides of the die block and projecting through openings in the dies, said fingers being movable by lifts entering the dies.

4. A heel-building machine comprising a fixed open rest, a pair of reciprocating rods, fixed guides for said rods, trunnion members journaled in said rods, a revoluble die block mounted on said members, and having oppositely projecting lift-cutting dies. and means for raising and lowering said rods, one of said rods and trunnion mem bers being provided with registering means, and the other trunnion member being provided with means whereby it may be rotated to revolve the die block.

5. A heel-building machine comprising a fixed open rest, a pair of reciprocatory rods, fixed guides for said rods, trunnion members journaled in said rods, a revoluble die.

block mounted on said members and having oppositely projecting lift-cutting dies, a rock-shaft 'havingarms engaged with said rods, and means for turning said shaft to raise and lower the rods.

6. A heel-building machine comprising a fixed open rest, a pair of reciprocatory rods, fixed guides for said rods, trunnion members journaled in said rods, a revoluble die block mounted on said members and having oppositely projecting lift-cutting dies, a rockshaft having arms engaged with said rods, and a handle arm on said rock-shaft whereby it may be turned to raise and lower the rods.

7. A heel-building machine comprising a fixed open rest, a pair of reciprocato y rods, fixed guides for said rods, trunnion members journaled in said rods, a revoluble die block mounted on said members and having oppositely projecting lift cutting dies, a rock-shaft having arms engaged with said rods, a handle arm on said rock-shaft whereby it may be turned to raise and lower the rods, and a detent whereby the handle arm may be confined to hold the rods in a raised position.

8. A. heel-building machine comprising an elongated heel-lift-guiding chute, a pair of oppositely facing lift-cutting dies adjacent to the receiving end of the chute, means for movably and revolubly supporting said dies to permit either die to face the receiving end of the chute, and the other die to face outwardly therefrom, and an open rest adapted to support the dies against pressure on the outwardly facing die, and including a fixed member having a relatively large socket, and an open bushing removably seated on the wall of said socket and interchangeable with another bushing or bushings to vary the size of the rest opening, means being provided for varying the size of the chute in cross section.

9. A heel-building machine comprising an elongated heel-lift-guiding chute, a fixed open rest adjacent to the receiving end of the chute, a revoluble carrier forsaid dies movable toward and from said rest and adapted to be seated thereon, means for moving said carrier toward and from the rest, detent means cooperating with the carrier-moving means to support the carrier when removed from the rest, and a. pair of oppositely projecting lift-cutting dies on the carrier.

10. A heel-building machine comprising an upwardly facing lift-cutting die, and a platen adapted to cooperate with said die and including a positively reciprocated inner head, and a loose outer head movable upon the inner head and normally separated yieldingly from the inner head when the platen is moving toward the die, said outer head constituting a warning device.

1].. A heel-building machine comprising an upwardly facing lift-cutting die, and a platen adapted to cooperate with said die and including a positively reciprocated inner head, and a loose outer head movable upon the inner head and normally separated yieldingly from the inner head when the platen is moving toward the die, said outer head constituting a warning device and being provided *ith a relatively soft face arranged to Contact with the die.

1:2. In a heel-building machine, a fixed rest, a pair of rigidly connected, oppositely facing lift-cutting dies, normally supported by said rest, die-carrying means having provisions for moving the dies toward and from the rest and for revolving the dies when removed from the rest, and aplunger movable within the dies by lifts forced into one die, to eject lifts from the other die, said plunger including a body portion, lift-shaped heads at opposite ends thereof, and one or more filling pieces mounted on the body portion between said heads.

In testimony whereof I have afiixed my signature.

CHARLES O. RYBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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