US2387288A

US2387288A - Machine for reinforcing insoles

Info

Publication number: US2387288A
Application number: US525338A
Authority: US
Inventors: Hans C Paulsen
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1944-03-07
Filing date: 1944-03-07
Publication date: 1945-10-23
Anticipated expiration: 1962-10-23

Description

@cit. 23, 1945. H. c. PAULSEN MACHINE FOR REINFORGING INSOLES Filed March 7, 1944 liwenlw Ham 7 CPztuZsen Patented Oct. 23, 1945 UNHTED STATES oFFICE MACHINE FOR REINFORCING INSOLES Application March '7, 1944, Serial No. 525,338

8 Claims.

This invention relates to machines for app yi reinforcing material to insoles such, for example, as are used in the making of welted shoes, and particularly to machines fOr applyin a Strip of fabric such as duck or canvas tothe inner face of the rib and to the body of the insole adjacent to the rib.

The invention is illustrated as embodied in a machine for reinforcing insoles of the type disclosed in United States Letters Patent No. 2,335,289, granted November 30, 1943, on an application of Norman E. Mariner and also in United States Letters Patent No. 2,345,627, granted April 4, 1944, on an application of the present applicant.

Machines of this type are already in extensive and successful commercial use but, particularly because of war conditions, the quality of the ocment which is available for application to the strip of reinforcing material before the latter is laid progressively in the angle between the body and the inside of the rib of the insole, in some instances at least, has been somewhat inferior to that formerly used so that, occasionally, there has been a tendency for the cemented strip to separate from the rib at one or more'points after the insole passes the operating or strip applying point of themachine.

Therefore, a principal object of the present invention is to provide means for insuring the permanency of the adhesion between the strip and the rib.

According to this invention, such adhesion is better insured by the provision ofmeans to engage the outer face of the rib just after or as the insole leaves the operating point. said means acting to press inwardly of and against the rib and thereby against the strip.

As herein illustrated, a machine of the general type of the patents above referred to is provided with a spring-pressed member shaped to engage at least the upper portion of the outer face of the rib at about the time that the insole leaves the operating or strip applying point or the bite of the feed rolls.

The invention will now be described in detail with the aid of the accompanying drawing, which illustrates a preferred embodiment of the invention, and then will be particularly pointed out in the appended claims.

In the drawing:

Fig. 1 is an end elevation of the parts of the machine in the general vicinity of the operating or strip applying point and in the positions they occupy before an insole has been presented to the machine;

Fig. 2 is an elevation, partly in section, looking from the right side of the machine, of the parts in the same vicinity and positions;

Fig. 3 is a plan, partly in section, of certain of the said parts showing the rib pressing member in advanced position;

Fig. 4 is also a plan, similar to Fig. 3, but showing an insole in operating position and with the rib pressing member in ,a somewhat retracted position;

Fig. 5 is a detail view showing said rib pressing member in operating position, as in Fig. 4, but viewed from the left side of the machine, the insole being shown in section; and

Fig. 6 is a detail end View of the upper feed roll and associated parts including a modified form of the rib pressing member and its controlling mechanism.

Referring the drawing, l0 designates the lower feed roll fixed to a driving shaft l2 supported in the frame M of the machine. It designates the upper feed roll fixed to its driving shaft l8 and carried in a yoke Or frame 20 pivoted to the main frame l4 so that the roll I6 is movable toward and from roll ID to facilitate introduction of the insole between the rolls, as more fully disclosed in the prior patents above referred to.

2B designates the strip applying roll, which may be freely rotatable, as disclosed in the said Mariner patent, or power driven, as disclosed in the said Paulsen patent. Also, to produce adequate traction on the strip or'tape S, this roll is preferably provided with teeth 28, as in the Paulsen patent, or spurs, as in the Mariner patent. A guard or plate 25 covers the inner end of roll and is formed as a part of the carrier 39 for the roll 26. This roll is mounted on a stud 32 in said carrier, the latter being secured to a block 34 which, in turn, is secured to a rockshaft 36 mounted in the frame M. A lever 38, also fixed to the rockshaft, is connected to a treadle rod MI, as in said prior patents. The yoke 20 is normally raised to inoperative position by a spring 42 and, when the treadle connected with rod 40 is depressed to turn the rockshaft, the yoke Zll with the feed roll I6 is depressed through connections including the link 44, also as in said prior patents.

After the applying roll 26 has been moved through the turning of the rockshaft 36 into operative position, the tape S is applied to the inside angle formed by the rib R and the body of the insole I, as shown in Figs. 4 and 5, being led to the operating or applying point by a guide 46, a tension device 48 and a guide 50 (Fig. 1).

To assist in guiding the insole through the machine, there is provided an outside guide 60 vertically adjustable on a block 62, the block itself being horizontally adjustable on the block 34 and, after such adjustment, both guide 60 and block 62 can be clamped to block 34 by screws 65 and 66 which pass through enlarged holes in the block 62. Particularly as shown in Fig. 6, the guide 60 has a curved face corresponding to the face of roll is and substantially in contact therewith and it can be adjusted with respect to the feed roll 16 so as properly to engage the outer face of the rib and, if desired, the feather of the insole.

According to the present invention, the machine is further provided with a rib presser member which, in the form shown particularly in Figs. 3 and 4, comprises a lever 68 pivoted to the block 62 at and shaped at its free end, as shown in Fig. 5, with an angular surface 12 which engages the upper portion of the outside faceof the'rib R. An adjusting screw 16, threaded through the opposite end of lever '58, is acted upon by a tension spring 18 to exert pressure on the outside of the rib just after the insole leaves the bite of the feed rolls. The extent of movement of the free end of the lever inwardly relatively to the edge of the insole is limited by the engagement of screw 16 with the shank of the guide 60; The two extreme positions of the free end and surface 12 of this member under the action of spring 18 are indicated respectively in Figs. 3 and 4. Thus the member 68 presses the rib R inwardly against the upturned margin of the reinforcing strip S and causes better adhesion between the rib and the adhesive face of the strip. Preferably, although not necessarily, the surface 12 of the presser member slightly overlaps the periphery of roll 28 and the guard 29, when the parts are in operatingposition, as shown in Fig. "4. C

In the actual use of the machine, as so far described, it has been found that, occasionally, a portion of lever 68 between the pivot 10 and the screw [6 is accidentally hit by the insole as it is being fed and swung during the operation on the shank portion of the insole. Any such interference is avoided by the use of the modified construction shown in Fig. 6 in which the said portion of said lever is eliminated. As there shown, the'lever or arm 68 is fixed to pivot stud 10 mounted in block 62. To the upper end of this stud is adjustably clamped by a screw 82 the hubof an arm site which is connected a tension spring 18', functioning in the manner of spring I8, and holding the lever against a surface at the end of block 34 to limit the movement of surface 12 toward the applying roll 26. The initial position of the free end of lever 68' and surface 12 with relation to roll 26 may be variedv by loosening screw 82, turning stud H! with lever 68' slightly to the desired position and then tightening screw 82 again.

Having thus indicated the object and nature of the invention and having described in detail one embodiment thereoiwhat I claim-as new and desire to secure by Letters Patent of the operating to apply a strip of material progressively to the body of the insole and to the inner face of the rib, a relatively stationary plate or guard between said feed rolls to engage the marginal portion of the strip at the inner face of the rib, an adjustable guide to engage the outer face of the rib and the feather of the insole as the insole approaches the applying point, a pivoted presser member the free end of which is shaped to engage the upper portion of the outer face of the rib and overlap the applying roll just after the insole leaves the bite of the feed rolls, and a spring exerting pressure on said member inwardly of the rib to cause better adhesion between the inner face of the rib and the strip of material.

2. In a machine for applying a strip of cemented reinforcing material to a ribbed insole, the combination of a pair of continuously driven rolls for supporting and feeding the insole, a strip applying roll, a pivoted carrier for said applying roll movable to carry the roll in an inclined'path toward and from said feed rolls and operating to apply a strip of material progressively to the body of the insole and to the inner face of the rib, a pivoted presser member the free end of which is shaped to engage the upper portion of the outer face of the riband, overlap the applying roll as the insole leaves the applying point, and a spring exerting pressure on said member inwardly of the rib to cause better adhesion between the in ner face of the rib and the strip of material.

3. In a machine for applying a strip of cemented reinforcing material to a ribbed insole, the combination of a pair of driven rolls for supporting and feeding the insole, an applying roll movable toward and from said feed rolls and operating to apply a strip of material progressively to the body of the insole and to the inner face of the rib, a movable presser member one end of which is shaped to engage the upper portion 'of the outer face of the rib and overlap the applying roll as the insole leaves the applying point, and a spring exerting pressure on said member in wardly of the rib.

4. In a machine for applying a strip of cemented reinforcing material to a ribbed insole, the combination of a pair of driven rolls for supporting and feeding the insole, an applying roll movable toward and from said feed rolls and operating to apply a strip of material progressivelyto the body of the insole and to the inner face of the rib, a movable presser member shaped to engage the upper portion of the outer face of the rib after the insole leaves the bite of the feed rolls, and a spring to cause said member to press inwardly against the rib.

5. In a machine for applying a strip of reinforcing material to a ribbed insole, the combines.

tion of means for supporting and feeding the insole, a roll for applying a strip of material progressively to the body of the insole and to the inner face of the rib, and a spring pressed member engagingthe outer face of the rib after the gaging the outer face of the rib after the insole leaves the applying point and exerting an inward pressure against the rib.

7. In a machine for' reinforcing "ribbed insoles, the combination of rolls for supporting and'feeding the insole and another roll for applying a strip of material progressively to the rib of the insole, a member to engage the outer face of the rib as the insole leaves the applying point, and means for adjusting the engaging portion of said member initially relatively to said rolls.

8. In a machine for reinforcing ribbed insoles, the combination of rolls for supporting and feeding the insole and another roll for applying a strip of material progressively to the rib of the insole, a member to engage the outer face of the rib as the insole leaves the applying point, and means for adjusting the engaging end of said memberin a plurality of directions relatively to said rolls.

HANS C. RAULSEN.