US2200381A - Machine for operating upon shoes - Google Patents

Description

y 14, 1940- Q c. e. BROSTROM 2.200.381

MACHINE FOR OPERATING UPON SHOES Filed Dec. 8, 1938 3 Sheets-Sheet 2 Fig.5.

May 14, 1940. c. e. BROSTROM MACHINE FOR OPERATING UPON SHOES Filed Dec. 8, 1958 3 Sheets-Sheet 3 Patented May 14, 1940 T UNITED STATES 1 2,200,381 I MACHINE FOR OPERATING UPON SHOES Charles G. Brostrom, Salem, Mass, assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application December 8, 1938, Serial No. 244,631

10 Claims. (01.12-30) This inventionrelates to .machines for operating upon shoes and is herein illustrated and described as embodied in a machine for opening channels formed upon shoe soles. The usual practice in the opening of channels is to present the shoe by hand to the operating instrumentalities, beginning at one end of the channel and feeding the shoe progressively until the entire channel has been opened. The shoe is thus presented, for example, in using the machine disclosed in United States Letters Patent No. 2,- 076,698, granted April 13, 1937 upon an application filed in my name, which machine is provided with channel opening instrumentalities similar to those disclosed herein.

It is an object of the present invention to provide an improved channel opening machine having facilities for assisting the operator in presenting the shoe to the channel opening instrumentalities. In accordance with a feature of the invention the illustrated machine is provided with means engageable with the shoe upper for feeding the shoe relatively to the operating instrumentalities and with yielding means for holding the feeding means. against the shoe upper. The feeding means herein illustrated consists of a roll which may be of rubber and which may be tapered to clear the edge of the sole. This roll is held against the shoe upper by a spring,

0 and provision'is made for enabling the roll to yield both upwardly and downwardly from a desired heightwise position. The illustrated machine is further provided with an abutmentengageable with the toe end of the sole for facilitating the turning. of the sole during operation upon portions of the channel adjacent to the toe end. This abutment in the illustrated machine comprises a post engageable with the edge of the sole and yieldable laterally of the direction in which the sole is fed but which is held rigidly against movement in the direction of feed to enable the post to. serve as a fulcrum about which the'toe end of the shoe may be turned.

The invention further consists in various features of construction and combinations and arrangements of parts herein shown and claimed, the advantages of which will be apparent to those skilled in the art from the following description, reference being had to the accompanying drawings, in which Fig. 1 is a side elevation of the improved machine;

Fig, 2 is a vertical sectional view taken along the line II-II-of Fig. 4;

Fig. 3 is an enlarged View in side elevation of a portion of a machine;

Fig. 4 is a plan view of the machine;

. .Fig 5 is a plan view of the operating instrumentalities; v

Fig. 6 is a plan view illustrating the operation of the machine upon a'shoe; and

Fig. 7 is a plan view illustrating the operation with the shoe in a less advanced position than shown in Fig. 6.

The operating members of the improved machine comprise a pair of tools l0 and I2 (Fig. 4) arranged in side-by-side relation to each other. These tools, which are reciprocated alternately, are shown in Figs. 6 and 7 as operating upon a shoe S upon the outsole of which is formed a channel lip L. The tool ID has an end portion M (Fig. 1) adapted to raise the lip L, the end portion l4 being concave in a direction heightwise of the sole and convex in a direction lengthwise of the sole. The tool l2 (Fig. 2) has a downwardly extending nose which strikes against the shoulder of the turned lip and an upwardly inclined under surface It. which performs an ironing operation to set the raised and partially turned lip. The tool [2 has an extension I8 which increases the bearing area of the under surface l6. Beneath the tools l0 and I2 and bearing against under surfaces formed on said tools is a thin blade-like gage 20 adapted to enter the channel and to engage the root of the channel lip L, otherwise known as the shoulder of the channel, to position the shoe in proper. relation to the tools l0 and i2. The gage 20 is not stationary but is oscillated lengthwise of the channel to facilitate feeding of the work. As the tools l0 and I2 are reciprocated the tool I!) will first engage the channel lip to raise it to upstanding position. The tool l2 which is already in engagement with a previously turned portion of the lip will then advance into engagement witlrthe newly raised portion of the lip and turn it back to set the lip.

The operating mechanism for the above-mentioned tools is housed in ahollow head 22 having a cover plate 2i and supported by a column 23 adapted to rest upon the floor. Journaled in the head 22 is a shaft-24 (Fig. {1) upon which is secured a pulley 26 adapted to be driven from any suitable source of power. Secured within the housing 22 are two upright posts 28 and 30. An arm 32 is fulcrumed at its central portion upon the post 28 and an arm 34 parallel to the arm 32 is fulcrumed at its central portion upon the post 30. A link 36 which is substantially parallel to the line joining the centers of the posts 28 and is pivotally secured to the ends the tool l2 while the link 38 similarly extends out through the opening in the housing and at its outer end carries an extension 39 upon which is mounted the tool I8. The tools I8 and I2 are secured by pivot pins 48 for heightwise swinging movement to the extensions 39 and 31 of their respective carrier links and are pressed downwardly by leaf springs 42 to stop positions determined by the engagement of the under surface of each tool with an extended portion of its carrier. The link 38 has an extension 44 beyond the arm 34. Secured upon the shaft' 24 is an eccentric 46 upon which is mounted an eccentric strap 48 which constitutes an end portion of a connecting rod 58, the opposite end of the connecting rod 58 being connected by a universal coupling to the extension 44. It is evident that the above-described arrangement will provide for parallel movement of the arms 36 and 38 and hence of the tools I8 and I2 alternately in opposite directions.

The gage 28 is pivotally mounted upon a bearing pin 52 (Figs. 2 and 5) secured in a sliding block 54 which is mounted in a block 56 with provision for adjustment of the gage 28 in the direction of movement of the tools I8 and I2. The block 56 in turn is secured upon a block 58 with provision for heightwise adjustment and the block 58 is secured upon the head 22 with provision for horizontal adjustment of the gage 28 in a direction normal to the direction of the movement of the tools I8 and I2. The gage 28 has a tail portion 68 extending beyond the pin 52 upon the end portion of which is pivotally mounted a block 62 which is embraced by a fork 64 extending from the arm 82. A bolt 6| adjustably threaded in a bracket 63 secured to the housing 22 has a head having a smooth surface which bears against the upper surface of the tail 68 to support the gage 28 against any tendency to tilt vertically. It is evident that the rocking of the arm 32 about the post 28 as the tools I8 and I2 reciprocate will serve also to rock the gage 28 about the pin 52.

The operating mechanism as so far described is identical with that disclosed in the above-mentioned Letters Patent No. 2,076,698. The tools I8 and I2 and the gage 28 disclosed herein are similar to the corresponding members shown in said Letters Patent, being designed, however, for operation upon channels of the English type.

For feeding the shoe S past the operating tools there is provided a frusto-conical rubber roll 66 having a rounded periphery engageable with the shoe upper. The roll 66 (Fig. 2) has a metal hub 68 which is journaled upon an upstanding pin I8 secured in a block I2 which, in turn, is secured to a block 74. Extending horizontally through the upper portion of a housing member I3 secured by screws 15 to the cover plate 2I is a pin I6 from the outer end portions of which depend a pair of swinging arms 18 (Figs. 1, 2, 4 and 7) upon opposite sides of the member I3. As shown in Fig. 4, slots for the screws "I5 are provided in the cover 2I to enable the member I3 to be adjusted to the right or left. Pivotally mounted upon the lower ends of the arms I8 is a bracket 88 upon which is adjustably secured by screws 82 the block I4. Formed upon the hub 68 is a bevel gear 83 which is driven by a bevel gear 84 secured upon a shaft 86 journaled in the block I4. The shaft 86 is driven in the direction indicated. by the arrow in Fig. 6 through an intermediate shaft 88 by a shaft 98 which is journaled for longitudinal sliding movement in the head 22, the shaft 88 being connected for universal movement to the shafts 86 and 98. A pinion 92 (Figs. 1 and 4) secured on the shaft 98 is driven through a pair of intermeshing gears 94 and 96 by a shaft 98 upon which is secured a worm wheel I88. A worm I82 secured upon the shaft 24 drives the worm I88. This arrangement provides for driving the feed roll 66 at a speed very much less than that of the shaft 24.

The roll 66, as above described, is free to rise and fall about the pivotal connection of the bracket 88 to the arms 18 and is free to move in the direction of movement of the tools I8 and I2 by reason of the pivotal connection of the arms I8 to the head 22. To control the position assumed by the roll 66 the arms I8 are urged toward the left, as viewed in Fig. 1, by a pair of springs I84 (Figs. 1 and 4) operating against the respective arms. Welded upon each side of the housing member I3 is a bracket I86 (Figs. 1 and 4) having a lug I88 which constitutes an abutment for the respective springs I84. Each of the brackets I86 has a lug II8 through which is threaded a stop screw II2 for adjustably limiting the forward swing of the respective arms I8 and thus limiting the movement of the roll 66 toward the left, as viewed in Fig. l.

The heightwise position of the roll 66 is controlled by a pin II4 (Figs. 2, 3 and 7) secured in the bracket 88 and slidably engaging a. horizontal groove II6 formed in a block II 8. A pair of rods I20 secured at their upper ends to an extension I22 of one of the brackets I86 and connected at their lower ends by a block I24 constitute a support upon which the block H8 is freely slidable up and down. Interposed between the extension I22 and the block H8 is a spring I26, while interposed between the block I24 and the block H8 is a spring I28. The springs I26 and I28 are centered and supported by a rod I38 secured in the extension I22 and block I24 and passing freely through the block I I8. The block II8 will tend to maintain a neutral position under the influence of the springs I26 and I28, from which position, however, it may yield either uppardly or downwardly.

Secured upon the brackets I86 is a platform I3I (Figs. 1, 2 and 4) upon which is secured a block I32. Fulcrumed upon a pin I34 mounted in the block I32 is a block I36 in which is rigidly secured a downwardly extending post I38. A tension spring I48 interposed between the block I36 and a support I42 on the platform I3I tends to swing the post I38 toward the left, as viewed in Fig. 1, to a stop position adjustably determined by a screw I44 threaded through a lug in the block I36 and engageable with the upper surface of the block I32. The post I38 is vertical or substantially so, as may be desired and may yield toward the right, as viewed in Fig. 1.

In the operation of the machine the shoe S having a channeled sole is presented by hand to the operating tools. The lip L is turned over by hand at a locality adjacent to one end of the channel and the shoe is presented with the tool I2 extending over the turned-over portion of the lip and with the gage 28 extending into the channel. The operator presses the shoe upwardly and toward the right, as viewed in Fig. 2, against the gage 28 with the root of the lip L in contact with the end of the gage. When the shoe is in this position the feed roll 66 will be held in engagement with the upper of the shoe by the springs I84, the roll 66 having yielded to the right from its normal stop position. The feed roll not only is yieldingly held against the upper by the springs I84, but is enabled also by the springs I26 and I28 to yield up or down. Such provision for all ' tion between said carrier and said slide for conheightwise yielding is important because of the fact that ordinary soles are not plane and have to be tilted up or down as the junction of the shank with the forepart passes the operating tools. The post I38 will press idly against the edge of the sole, having likewise yielded to the right from its normal stop position. As the tools- H3 and I2 reciprocate alternately the tool ID will raise the lip L and the tool I2 will set the lip. As the operation progresses toward the toe end of the shoe the post I38 under the influence of the spring ME will follow the curvature of the edge of the sole at the toe end, swinging gradually to the left until it occupies its normal stop position shown in Fig. 7. As the operator turns the shoe at its toe end the post I38 serves conveniently as a fulcrum to facilitate the swinging of the shoe. As the operation passes the portion of greatest curvature and the shoe is again presented laterally to the operating tools the post I38 will yieldto the right as shown in Fig. 6 and thus will not in any way interfere with the feeding of the shoe.

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

1. A machine for operating upon shoes comprising means for operating upon a channel formed on the sole of a shoe, a roll engageable with the shoe upper, means for holding said roll in a desired heightwise position from which said roll may yield both upwardly and downwardly, and means for driving said roll to feed the shoe relatively to said operating means.

2. A machine for operating upon shoes comprising means for operating upon a channel formed on the sole .of a shoe, 2. roll engageable with the shoe upper, a pair of opposed springs acting upon said roll for holding said roll in a desired heightwise position from which said roll may yield bothl upwardly and downwardly, a spring urging said roll against the shoe upper, and means for driving said roll to feed the shoe relatively to said operating means.

3. A channel opening machine comprising means for opening a channel formed on the sole of a shoe, a roll engageable with the shoe upper, a carrier in which said roll is rotatably mounted, an arm upon which said carrier is pivotally mounted for substantially heightwise swinging movement of said roll, a support upon which said arm is pivotally mounted for substantially horizontal swinging movement of said carrier, yieldable means for maintaining said carrier in a desired position both heightwise and horizontally with respect to said channel opening means, and means for driving said roll to feed the shoe relatively to said channel opening means.

4. A channel opening machine comprising means for opening a channel formed on the sole of a shoe, a roll engageable with the shoe upper, a carrier in which said roll is rotatably mounted, a support for said carrier constructed and arranged to enable said roll to move both vertically and horizontally, a vertical guide, a slide on said guide, a pair of opposed springs acting upon said slide for maintaining said slide in a desired heightwise position from. which the slide may yield both upwardly and downwardly, a connectrolling the heightwise position of said carrier in accordance withthe heightwise position of the slide, said connection being constructed and arranged for horizontal movement of said carrier relatively to said slide, a spring for urging the roll horizontally against the shoe upper, and

means for driving said roll to feed the shoe relatively to said channel opening means.

5. A channel opening machine comprising means for opening a channel formed on the sole of a shoe, a roll engagcahle with the shoe upper, means for driving said roll to feed the shoe relatively to said channel opening means, a gage for gaging the shoe in relation to said channel opening means, a support for said feed roll, and a spring acting upon said support to urge said roll against the shoe while enabling the roll to yield under pressure of the shoe as the shoe is held against said gage.

6. A channel opening machine comprising means for opening a channel formed on. the sole of a shoe, a roll engageable with the shoeupper, means for driving said roll to feed the shoe relatively to said channel opening means, a gage for gaging the shoe in a direction transverse to the direction in which the shoe is fed by said feed roll, a support constructed and arranged to enable said roll to yield under pressure of the shoe both heightwise and transversely of the direction in which the shoe is being fed, and resilient means for holding said roll against theshoe.

'7. A channel opening machine comprising a pairof reciprocatory tools constructed and'arranged to raise a channel lip on the sole of a shoe and to turn back the lip respectively, means for reciprocating said tools, a driven feed roll engageable with the shoe upper, and a. spring forholding said roll against the shoe as the shoe is presented by hand to said lip-raising tools.

8. 'A channel opening machine comprising a pair of reciprocating members in side-by-side relation constructed and arranged to raise a channel lip on the sole of a shoe and to turn back the der of the lip may be held, a driven feed roll engageable with the upper of the shoe, and yieldable means for holding said roll against the shoe, said holding means being also constructed and arranged to yield'heightwise of the shoe.

9. In a machine for operating upon the soles of shoes, means for operating progressively upon the marginal portion of a sole when the shoe is presented by hand, a post engageable with the edge of the sole as the shoe is being fed, and a support for said post constructed and arranged for yielding movement of the post laterally of the direction of feed while holding said post rigidly against movement in the direction of feed to enable the post to facilitate turning of the shoe during operation in the vicinity of the toe end of the sole.

10. In a machine for operating upon channels formed upon the soles of shoes, means for operating progressively upon the channel of a sole when the shoe is presented by hand, means for feeding the shoe relatively to said operating means, a post engageable with the edge of the sole as the shoe is being fed, a pivotal support constructed and arranged for swinging movement of said post laterally of the direction of feed while holding said post rigidly against movement in the direction of feed, a spring for

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