US2220235A - Machine for operating on shoe bottoms - Google Patents

Description

Nov. 5, 1940.

J. B. HADAWAY 2,220,235

MACHINE FOR OPERATING ON SHOE BOTTOMS Filed July 28, 1939 //v l/f/V 70R; Joy/v 5. H404 WA); 056 2).,

B) fZoeavcrJ Hawk/Ag [CUTE/X Patented Nov. 5, 1940 UNITED STATES PATENT OFFICE MACHINE FOR OPERATING ON SHOE BOTTOMS Application July 28, 1939, Serial No. 287,048

13 Glaims.

This invention relates to machines for laying channel flaps on shoe bottoms and is herein illustrated and described as embodied in that type of machine which employs a belt having a number of projecting ribs on its operating face.

In the manufacture of shoes in which the outsole is attached to the shoe by a row of stitches it is frequently the practice among manufacturers to make a channel on the bottom or grain side of the outsole. This channel is then opened and the outsole stitched to the shoe at the channel base so that when the channel is closed the stitches will not be apparent on the bottom of the shoe. One type of machine used in closing these channels employs as a flap laying tool a belt having on its surface a number of projecting ribs. In the use of such machines the operator presses a shoe with a previously cemented open channel against the belt so that the ribs will strike the channel fiap at its base and then draw and pound it into firm contact with the body of the sole. As the ribs pound they tend to smooth out any wrinkles which may have been created when the flap made its initial contact with the body of the sole, and by pressing the shoe more or less firmly against the belt, the operator may increase or diminish the ironing effect of the ribs, according to the requirements of each individual shoe. 7

30 It is an object of the present invention to provide an improved channel flap laying machine in which any possibility of tearing the channel flap because of undue pressure on the shoe by the operator is entirely eliminated and any tendency 35 of the machine to jar the operator is overcome.

It is a further object to provide an improved channel laying belt which will insure that the channel flap is stretched to its fullest extent and is beaten into firm contact with the sole at all 40 points.

With a view to the accomplishment of these objects, there is provided a channel flap laying machine compising a frame, a fiap laying belt rotatable on pulleys mounted in said frame for yieldable swinging movement, and means for driving the belt. Another feature of the invention resides in an improved belt having on its operating face a number of groups of ribs disposed at different angles to the edge of the belt.

It will readily be seen that the yielding feature of the machine above described prevents the application of more than a predetermined proper amount of pressure and insures against any jarring of the operator, but at the same time by 55 means of the improved belt stretches the channel flat taut and firmly presses it against the sole at all points.

The invention will be better understood when considered with relation to the accompanying drawing, in which 5 Fig. 1 is a side elevation of the upper portion of the machine;

Fig. 2 is a view, on a larger scale, of the flaplaying belt; and

Fig. 3 is a cross section of the flap-laying belt 10 along the line IIIIII of Fig. 2.

As shown in Fig. l the machine comprises a hollow standard ID to which is bolted an upper frame member [2. A drive shaft I4 is journaled in the upper portion of the member l2 and car- 15 ries at one end a drive pulley l6 through which the shaft l4 may be rotated by any convenient source of power. The shaft is held against longitudinal movement in its bearings by collars l8.

A head 20 is freely mounted on the drive shaft- 20 I 4 in such a manner that it may swing slightly about the drive shaft.

Integral with the head 20 is an arm 22 which extends downwardly through the upper frame member l2 into the hollow standard Ill. The 25 lower end of the arm 22 carries a pin 24 upon which is pivotally mounted a rod 26. This rod extends rearwardly through a boss 28 on the standard, and its outer end is threaded to receive a nut 30. A compression spring 32 interposed between the boss 28 and the nut 30 yieldably holds the arm in a stop position determined by the end of a screw 34 threaded through a boss 36 on the standard It. A set nut 38 holds the stop screw 34 in adjusted position, and a similar stop screw All in the front wall of the standard limits the forward movement of the arm 22. The head 20 may thus pivot on the shaft l4 but it is normally held by the spring 32 in its downward position with the arm 22 resting against the end of 40 the stop screw 34.

' The flap laying tool proper is a V-belt 42 which is driven through a grooved pulley 44 fastened on the shaft I4 and passes over another grooved pulley 46 mounted on a shaft 48 journaled in the forward end 50 of the head 20. An idler pulley 52 carried on an arm 54 connected by a screw and slot arrangement 56 to a bracket 58 extending downwardly from the head 20 keeps the belt taut.

To beat the channel flap into firm contact with 50 the body of the outsole, the outer surface of the belt 42 is provided with a number of raised metall ic ribs 60 arranged in groups, seven to a group being an advantageous number. The ends 62 of the ribs pass over the edges 64 of the belt and are buried in the body of the belt so that the side and inner surfaces of the latter will present a smooth surface to the grooved pulleys. The ribs in each group are parallel to each other and are 5 inclined to the edge 64 of the belt, the inclination being reversed as between adjoining groups (see Fig. 2). Thus the leading sides of one group of ribs, i. e., the sides of the ribs which first strike the work, tend to draw the flap outwardly toward the edge of the shoe bottom and also toward one end of the shoe, and the leading sides of the next group draw it outwardly and toward the opposite end of the shoe, thus insuring that the flap will be stretched taut in all directions. In using the machine the operator grasps a shoe in both hands and presses one side of the shoe bottom against the moving belt. The beating action of the ribs draws the flap tight and forces it into firm contact with the body of the sole. The operator then moves the shoe lengthwise so that the ribs may act progressively on all portions of the channel flap. If the operator attempts to apply more than a predetermined amount of pressure on the shoe, the head and belt will yield upwardly against the action of the spring 32. The tension of the spring 32 will, of course, have been previously adjusted so that it will yield before sufiicient pressure to tear the channel flap can be applied. Thus by proper adjustment of the machine, all possibility of tearing the channel flap is eliminated and in addition the jarring to which the operator might otherwise be subjected, because of the beating action of the ribs against the shoe bottom, is relieved and partially absorbed by the resiliency of the spring.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent of the United States is:

l. A channel flap laying machine comprising a frame, a head mounted for limited yielding movement in said frame, a flap laying belt mounted on said head, and means for driving said belt.

2. A channel flap laying machine comprising a frame, a head mounted for pivotally yieldable movement in said frame, a flap laying belt mounted on said head, said head being constructed and arranged to yield upon application of a predetermined amount of pressure by a work piece against said belt, and means for driving said belt.

3. A channel flap laying machine comprising a frame, a head mounted for movement in said frame, a flap laying belt mounted on said head,

means for yieldably holding said head in a predetermined position, and means for driving said belt.

4. A channel flap laying machine comprising a frame, a head pivotally mounted insaid frame, a

flap laying belt mounted on said head, an arm integral with said head, means for limiting the pivotal movement of said arm and head, means for yieldably holding said arm at one of said limits of movement, and means for driving said tool.

5. A channel flap laying machine comprising a frame, a head mounted for swinging movement in said frame, stops for limiting the swinging movement of said head, a flap laying belt carried by said head, means for driving said belt, a spring constructed and arranged to hold said head yieldably against one of said stops, and means for varying the tension of said spring.

6. A channel flap laying machine comprising a frame, a head mounted for limited yieldable swinging movement in said frame, a plurality of pulleys carried by said head, a flap laying belt mounted on said pulleys, and means for driving one of said pulleys.

7. A channel flap laying machine comprising a frame, a head pivotally mounted in said frame, a plurality of pulleys carried by said head, a fiap laying belt mounted on said pulleys, means for yieldably holding said head in a predetermined position, and means for rotating one of said pulleys.

8. A channel flap laying machine comprising a frame, a head mounted for limited pivotally yieldable movement in said frame, a plurality of pulleys carried by said head, a flap laying belt mounted on said pulleys, and means for adjusting the tension of said flap laying belt.

9. In a channel fiap laying machine, a flap laying belt having a plurality of series of ribs, each series being disposed at an angle to the adjacent series.

10. In a channel flap laying machine, a flap laying belt having on its outer surface a group of parallel ribs, and a second group of parallel ribs disposed at an angle to the first'group.

11. In a channel flap laying machine, a flap laying belt having a smooth inner pulley engaging surface, and a plurality of groups of parallel ribs on its outer surface, each group being positioned at an angle to the adjacent groups.

12. In a channel flap laying machine, a flap laying belt having on its outer surface a group of ribs the leading sides of which are at an oblique angle to the edge of said belt, and a second group of ribs the leading sides of which are positioned at an angle to the same edge of said belt, which angle is supplemental to said oblique angle.

13. In a flap laying machine, a flap laying belt having a smooth inner pulley engaging surface, a group of parallel ribs the leading sides of which are positioned at an oblique angle to one edge of said belt, and a second group of parallel ribs the leading sides of which are positioned at said oblique angle to the other edge of said belt.

FLORENCE S. HADAWAY, Execzttria: of the Will of John B. Hadaway,

Deceased.

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