US2029305A - Trimming machine - Google Patents

Description

Feb. 4,19%. 1.. J. BAZZONI TRIMMING MACHINE Filed June 14, 1953 4 Sheets-Sheet l QQN //v VE/V mi Feb. 4, 1936' L. J. BAZZONI TRIMMING MACHINE Filed June 14, 1933 4 Sheets-Sheet 5 Feb. 4, 1936.7 1., J. BAZZONI TRIMMING MACHINE 4 j w H h D 1 s h. t N h w hu o 6 W n I 4 z N T 3 7 .J11 3 M. e l, 2 e n u J d e l i F Patented Feb. 4, 1936 UNETE TRIMMING MACHINE Application June 14, 1933, Serial No. 675,795

27 Claims.

. an edge of a heel to which the cover has been applied.

In order to perform this and other skiving operations, there is provided, in accordance with one feature of the invention, an anvil for supporting the margin of a piece of flexible material, a rotary rasp and means for causing the rasp toskive the margin by a series of stockremoving operations which progress toward the 'edge of the margin. In the illustrated construction the rasp has pointed teeth arranged in a helix about its periphery so as to feed the material as well as to skive the margin thereof.

In order to facilitate the feeding of the material, and in accordance with another feature of the invention, the anvil is rotatably mounted. In the illustrated construction the anvil has the general form of a cylinder with its axis substantially at right angles to that of the rotary abrading rasp and substantially in tangential relation with respect to the rasp so as to form with the periphery of the rasp a V-shaped opening into which the margin to be skived is fed.

In slriving the cover margin which projects above the attaching face of the heel, it is oustomary to start the skiving out about one-eighth of an inch from the rim of the attaching face of the heel to which the cover has been applied, whereas in skiving the margin which projects beyond the breast of the heel, it is customary to start the skiving out substantially at the breast edge of the heel. To this end, in accordance with another feature of the invention, the gage which engages the covered face of the heel may be adjustably moved by a treadle toward and d away from the axis of rotation of the anvil in order to position the edge of the heel at varying distances from the V-shaped opening.

These and other features of the invention, including certain details of construction and combinations of parts, will he described as emalong the line IV-IV of Fig. 3;

Fig. 5 is a detail view showing a heel positioned by the gages of the machine while the margin of the cover which projects beyond the breast of the h el is supported by an anvil and is being skived by the rotary rasp of the machine;

Fig. 6 is a view corresponding to Fig. 5 showing the machine in the operation of skiving the margin of the cover projecting beyond the attaching face of the heel;

Fig. 7 is an enlarged view of a portion of the rotary rasp; and

Fig. 8 is a perspective View of a heel, the projecting margins of the cover of which have been skived in the illustrated machine.

The illustrated machine may be advantageously used to skive the projecting margins 23 and 22 (Figs. 6 and 5, respectively) of a cover 24 applied to the rear and side faces of a heel 26 preparatory to cementing the margins and 22 to the attaching face 28 and to the breast face 30 of the heel, respectively.

The illustrated machine is provided with a rotatable anvil 32 for supporting one of the heel cover margins 28, 22, a rasp or tool 34 rotatable in a plane disposed at substantially right angles to the plane of rotation of the anvil 32 and constructed and arranged to skive or to bevel the margins 26, 22 of the cover supported by the anvil 32 by a series of cuts (Fig. 8), each of which progresses toward the edge of the margin being operated upon, and a pair of rotatably mounted gages 36, 38 constructed and arranged to engage the covered and the uncovered faces respectively of the heel for guiding the same and one of the projecting margins of the cover relatively to the rasp 3B.

The rotary rasp 3 is secured by screws 40 (Fig. 5) to a flange portion 42 (Fig. 3) of a shaft 44 which is supported for rotation in a bearing housing 46 mounted upon the main frame. A pulley .8 (Fig. 3) is keyed to the opposite end of the shaft 54, the pulley being driven by a belt 59 which receives its power from a pulley 52 of an electric motor 5%. The lower half of the rasp 3G is positioned within a guard 58, the outer side of which is removable for the purpose of changing the rasp.

The anvil 32 which is illustrated as formed integral with the gage 38, and may be referred to as a drum, is secured to an upright shaft 58 (Figs. 5 and 6) which is rotatably mounted in a U-shaped arm 6E! having hub portions 62 (Fig. 3) which are mounted upon a pin 64 carried by a bifurcated bracket 56. A driving pulley 68 (Fig. 1) is keyed to the lower end of the shaft 58. The

U-shaped arm 60 and the bifurcated bracket 66 are normally locked together by a pair of screws 6'! which are arranged transverse to the axis of rotation of the shaft 44 and which are in threaded relation with the U-shaped arm 50 and have their end faces in engagement with the bifurcated bracket 65.

The lower portion I0 (Figs. 5 and 6) of the side surface of the drum is inclined toward the axis of rotation of the anvil 32 from the point I2 of substantial contact of the rasp 34 and the anvil 32 which may be said to have a cylindrical surface arranged in substantially tangential relation with respect to the rasp. The upper corner of the anvil 32 is beveled to facilitate the bending of the margin of the cover of the heel guided by the gages 35, 38 into a V-shaped opening "I l (Fig. 2) formed between the anvil 32 and the rasp 35. The opening through which the cover is fed during the skiving operation may be said to be V- shaped in two directions disposed at substantially right angles to each other.

In order initially toadjust the anvil 32 to-- ward and away from the rasp or scraping tool 34,. the bifurcated bracket 66 to which the U-shaped arm 50 is clamped by screws 61, is mounted for pivotal adjustment upon upper and lower flat surfaces (Fig. 4) of the bearing housing 46 about a bolt 18 carried by the bearing. Such adjustment is effected by turning screws I6 which are spaced in the general direction of the axis of the shaft 40 and are in threaded relation with the bifurcated bracket 65 and have their ends in engagement with the bearing housing 40. To assist the operator in making this adjustment, the bifurcated bracket 05 is provided with an arcuate slot (Fig. 3) through which passes a screw 82 which is in threaded relation with the bearing housing 46. When it is desired to adjust the anvil 32 toward or away from the rasp 34 the screws vI6 are loosened and the bifurcated arm 65, after being turned to its proper angular position about the bolt 18 is held in place by the screw 82, after which the screws I6 are set up against the bearing housing 05. Lubricant may be supplied to a bearing 84 of the shaft 44 through a wick 88 the lower end of which is inserted in an oil chamber of the housing 40.

The rotatable gage 36 which has a general shape of a bowl encloses the upper part of the rasp 34 and serves as a guard. Secured to the gage 36 is a shaft 9!) which is rotatably mounted in a bearing 92 provided with a sleeve portion 94 journaled upon a pin 96 supported by a bearing portion 98 of the main frame. A gage driving pulley I00 is keyed to the upper'end of the shaft 90.

The pulley 68 which rotates the combined anvil 32 and gage 30 is driven through a belt I02 (Fig. 1) by a pulley I00 secured to the lower end of a countershaft I06. The countershaft I 06 is journaled in bearing housings I08 supported by a standard I I0 of the main frame. The pulley I 00 through which the gage 36 receives its power is driven by a belt II2 which is in driving relation with a pulley I Hi secured to the upper end of the countershaft I05.

The countershaft I05 is provided with a gear II 5 (Fig. 3), which meshes with a worm H8 of a shaft I20 mounted in bearing housings I22 and I24 (Fig. 1). Mounted upon the shaft I20 is a driven clutch member I26 which carries a pin I28 arranged to pass through an elongated slot I30 formed in the shaft I20. With such an arrangementgit will be noted that the driven member I26 is rotatable with the shaft I20 but is movable lengthwise of the shaft. A pulley I32 which is formed integral with a driving clutch member I30 is mounted for rotation upon the shaft I20 and is normally in driving relation with the driven member I26 which is urged against the driving member I34 by a spring I30. The machine is provided with a treadle operated cam I38 having a cam surface I 30 which is arranged to engage one end of a rod I42 mounted for reciprocation in an axially extending recess of the shaft I20 and the other end of which engages the pin I28 carried by the driven member I26. Movement of the cam I38 causes the rod I42 to force the driven member I26 to the right against the pressure of the spring I36 thereby to throw the member I26 out of driving engagement with the driving member I 34. The pulley I32 is rotated by a belt I45 (Fig. 3) which is driven by a pulley I48 of the electric motor 55.

As above stated, in skiving the margin 20 (Fig. 6) which projects beyond the attaching face 28 of the heel, it is desirable that the skiving cut shall start about one-eighth of an inch from the rim of an attaching face, whereas the skive formed on the margin 22 (Fig. 5) which projects beyond the breast of the heel shall start substantially at the breast edge of the heel. Accordingly, the gage 36 is mounted for swinging adjustment about the pin 96 in order to adjust such gage toward and away from the axis of rotation of the anvil 32. The gage 35 may be readily swung by the operator alternatively to the positions shown in Figs. 5 and 6, with respect to the anvil 32 by lowering and raising a treadle-operated rod I50 (Fig. 2) which is connected to an extension I52 of the sleeve 92.

Upward movement of the rod I50 causes a lug I55 of the extension to engage a screw I56 which is adjustably mounted in the main frame and downward movement of the rod I50 moves another lug I58 into engagement with a screw I60 which is also adjustably mounted in the machine frame. The screws I50, I60 may be initially adjusted to control the swingingmovement of the gage 36 in accordance with the position at which it is desired to form the bevel on the projecting margin of the cover to be skived.

In skiving margins of flexible material, it is sometimes desirable to vary the angle of the skive and accordingly the anvil 32 may be angularly adjusted about the axis of the pin 64 (Fig. 4) which axis, as already stated, is disposed in parallel relation with respect to the axis of rotation of the rasp 3t and passes through the bottom of the v-shaped opening I I. Such adjustment may be readily effected by turning screws 61, which are carried by the U-shaped arm 60 and the ends of which engage the bifurcated bracket 66, in opposite directions until the desired adjustment has been made.

In order to expedite the feeding of the margin through the V-shaped opening I4 the rasp 34 comprises a plurality of pyramidal teeth I62 (Fig. 7) arranged in the form of a helix. To assist in feeding the margin into the V-shaped opening M, the end of the rasp 34 to which the work is first presented is provided with a conical surface In order to perform the skiving operation the operator, after making the necessary adjustments, engages a covered face of the heel with the gage 35 and rests the face beyond which the cover projects against the gage 38. As the heel is guided past the cutter from left to right (Fig. 1)

by the gages the projecting margin which passes through the space formed between the gages 36, 38 and through the V-shaped opening 14, is forced by the rasp 34 against the cylindrical face of the anvil 32 and is skived by a scraping out which progresses toward the edge of the margin. The rasp 3d, thus, not only'straightens out the margin as it forces the same against the anvil 32 but also, due to thespiral arrangement of the teeth, assists in feeding the margin past the anvil thereby to insure that there is no wrinkling of the flap during the skiving operation.

The machine of the present application is similar in. many respects to the machine of application Serial No. 675,794, filed June 14, 1933, in my name, and all subject-matter common to the two applications is claimed in said above-identi fied application.

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

l. A trimming machine having, in combination, a rotary anvil for supporting the margin of a piece of flexible sheet material fed over it, a cooperatingstock-removing tool, and means for rotating said tool in a plane disposed at an angle to the plane of rotation of the anvil and in a direction, to skive the margin by a series of operations. which progress toward the edge of the margin.

2. In a trimming machine, a rasp mounted for rotation about an axis, an anvil having a workengaging face constructed and arranged to be engaged progressively by an elongated projecting margin of a piece of flern'ble material secured to a block, and means constructed and arranged to be engaged by the block for guiding said projecting margin generally lengthwise of the axis of rotation of said rasp to skive the margin by a series of cuts which progress toward the edge of said margin.

3. In a trimming machine, a rasp mounted for rotation about an axis, and an anvil having a work-engaging face curved about an axis disposed at a substantial angle to the axis of rotation of the rasp, said rasp being constructed and arranged to skive to a feather edge a projecting margin of .a cover, which is attached to a heel and is supported by the anvil, by a series of cuts which progress toward the edge of the margin.

4. In a trimming machine, a rasp rotatable about an axis, and an anvil rotatable about an axis disposed at substantially a right angle to the axis of rotation of the rasp, said anvil being provided with a work-engaging face constructed and arranged to be progressively engaged by an elongated margin of a piece of flexible material which forms the cover of a heel to brace the same against the action of the rasp thereby to skive the margin to .a feather edge by a series of cuts each of which progresses toward the margin of the cover.

5. A trimming machine having, in combination, a rotary anvil shaped and arranged to support a. cover margin projecting beyond an edge of a heel to which the cover has been .applied, a rotary rasp arranged almost to engage the anvil, and gages for positioning the heel and its projecting margin relatively to the anvil, opposed portions of the anvil and the rasp being mounted for movement in planes disposed substantially at right angles to each other.

6. A trimming machine having, in combination, a rotary anvil for supporting a margin of V, a cover projecting beyond an edge of a heel to which the cover has been applied, a rotary rasp arranged almost to engage the anvil, and gages for positioning the heel and the projecting margin of said cover relatively to the anvil, opposing.

portions of the anvil and the rasp being mounted for movement in planes disposed at substantially right angles to each other, said rasp being constructed and arranged to feed said margin past the anvil as it skives the cover margin supported by said anvil.

'7. A trimming machine having, in combination, a scraping tool, and a rotary anvil provided with a face constructed and arranged to formwith the scraping tool, an opening which is V- shaped in two directions disposed at substantial angles to each other.

8. A trimming machine having, in combination, an anvil provided with a cylindrical surface for supporting a margin of flexible material,

and a rotary rasp arranged substantially in engagement with said surface to provide a V- shaped opening into which said margin may be fed, said anvil being rotatable about an axis which lies substantially in the plane of rotation of the rasp.

9. A trimming machine having, in combination, a rotary scraping tool, and a rotary anvil constructed and arranged to form with the tool an opening which is V-shaped in two directions disposed at substantial angles to each other, said tool comprising a plurality of teeth arrangedin a helical series.

10. A trimming machine having, in combination, an anvil for supporting a flexible heel cover margin which projects beyond one of the edges of a face of a heel to which the cover has been applied, a rotary rasp comprising a plurality of teeth arranged in a helical series and constructed and arranged for cooperation with the anvil to skive said margin by a plurality of cuts each of which progresses toward the edge of said margin, and means for guiding the heel relatively to the rasp to determine the location of the trimming cuts.

11. In a trimming machine, a rasp mounted for rotation about an axis and provided with teeth arranged in a helical series, an anvil mounted for rotation about an axis disposed at a substantial angle to the axis of rotation of the rasp, said anvil being constructed and arranged to present the margin of a flexible piece of covering material secured to a heel progressively to the rasp, and means for operating the rasp to cause the margin supported by the anvil to be skived by a series of cuts each of which progresses toward the edge of the margin.

12. In a trimming machine, a rasp movable in a predetermined path, an anvil for supporting the projecting margin of a cover secured to a heel against the rasp, and a member constructed and arranged to be progressively engaged by the heel and to guide said margin in a path disposed at a substantial angle to the path of movement of the rasp thereby to skive the margin by a series of cuts each of which progresses toward the edge of the margin of the cover.

13. A trimming machine having, in combination, a rotatable anvil for supporting a margin of a flexible cover which projects beyond one of the edges of a face of a heel to which the cover has been applied, a scraping tool rotatable in a plane disposed at substantial right angles to the plane of rotation of the anvil and constructed and arranged to skive the margin of the cover supported by said anvil by a series of scraping cuts which progress toward the edge of said margin, and means constructed and arranged to engage simultaneously both the covered face and another face of the heel for positioning the heel relatively to the cutter thereby to determine the location of the trimming cut.

14. A trimming machine having, in combination, a rotary drum for supporting a margin of a flexible cover which projects beyond one of the edges of a heel to which the cover has been applied, a gage to engage a covered face of the heel, said drum having a surface arranged to engage another face of the heel, and a rotary tool constructed and arranged to force the margin of the cover against the drum to skive the projecting margin fed past the drum to a predetermined width.

15. A trimming machine having, in combination, a rotary tool provided with a face having stock removing projections thereon, and a drum rotatable about an axis which lies substantially in the plane of rotation of the tool, said drum being arranged adjacent to the face of the tool to form a V-shaped opening through which a projecting margin of a cover attached to a heel may be moved thereby to skive said margin to a 'feather edge.

16. A trimming machine having, in combination, a rotatable drum provided with a surface for supporting the projecting margin of a cover secured to a face of a heel, .a gage for engaging the covered face of the heel, said drum comprising a surface arranged to engage the face of the heel beyond which said cover margin projects,

and a rotary tool arranged adjacent to said margin supporting surface and constructed to skive the margin of the cover by a series of scraping cuts each of which progresses toward the edge of the margin.

17. A trimming machine having, in combination, a pair of rotatable gages spaced from each ing.

other and constructed and arranged to engage angularly disposed faces of a heel beyond one of the edgesof which projects a margin of a cover which has been applied to the heel, an anvil to support the projecting margin of the cover, and a rotary tool having a plurality of circumferentially spaced teeth movable in a path which is disposed substantially in tangential relation with respect to said anvil thereby to skive the margin supported by the anvil.

18. A trimming machine having, in combination, a rotary tool provided with a roughened face, .a drum rotatable about an axis which lies substantially in the plane of rotation of the tool, said drum being arranged adjacent to the roughened face of the tool to form a wedge-shaped opening through which a projecting margin of I a cover attached to a heel may be moved thereby to skive said margin to a feather edge, and means for angularly adjusting said drum about an axis disposed substantially parallel to the axis of rotation of the tool and passing substantially through the bottom of the V-shaped open- 19. trimming machine having, in combination, a pair of rotatable gages spaced from each other. and constructed and arranged to engage angularly disposed faces of a heel beyond one of the edges of whichprojects a margin of a cover which has been applied to the heel, an anvil to support the projecting margin of the cover, a rotatable scraping tool movable in a path which is disposed in substantially tangential relation with respect to the anvil thereby to skive the margin supported by the anvil and fed past the same, and means for positively rotating the gages and the anvil to facilitate the feeding of the cover past the tool.

20. A trimming machine having, in combination, a rotary anvil for supporting a margin of a cover projecting beyond an edge of a heel to which the cover has been .applied, a rotary rasp arranged in tangential relation with respect to the anvil for skiving the margin to a feather edge, gages spaced from each other and con-; structed and arranged for engagement with the covered face of the heel and the face of the heel beyond which the cover margin projects respectively, said rasp comprising a series of teeth arranged in the form of a helix for feeding said margin past the anvil, and means for moving the gages to feed the-heel past the anvil.

21. A trimming machine having, in combination, a rotary drum for supporting a margin of a cover which projects beyond an edge of a heel to which the cover has been applied, a gage to engage a covered face of the heel, said drum having a surface .arranged to engage'another face of the heel, a rotary tool constructed and arranged to force the margin of the cover against the drum thereby to skive the projecting margin of the cover to a predetermined width, and' means for adjusting the gage relatively to the drum to vary the position of the skive with relalengthwise of the axis of rotation of the tool and 7 passes substantially through the bottom of the v-shaped opening thereby to vary the shape of the opening.

23. A trimming machine having, in combination, a rotary rasp and a rotatable anvil constructed and arranged to form an opening which tapers in two directions disposed substantially at right angles to each other and is shaped to receive a margin of .a piece of flexible material, and means for rotating the rasp to cause the margin fed through the opening to be forced against the anvil and thereby to be beveled by a series of scraping cuts.

24. A trimming machine having, in combination, a rotary rasp and an anvil arranged to form a V-shaped opening for receiving a margin of a cover which projects beyond one of the edges of. a face of a heel to which the cover has been applied, said rasp comprising a plurality of teeth arranged in the form of a helix, means for rotating the rasp to cause the margin fed through the V-shaped opening to be forced against the anvil and thus to be skived to a feather edge by scraping cuts which progress toward the bottom of the opening, and gages constructed and arranged to engage angularly disposed surfaces of the heel for guiding the same and the projecting margin of its cover relatively to the rasp.

25. A trimming machine having, in combination, an anvil for supporting aflexible margin of a cover which projects beyond an edge of a heel face to which a cover has been applied, a rasp mounted for movement in a predetermined path, means for guiding the heel past the rasp, and means for moving the rasp along said path to cause the same to skive the margin supported by the anvil and guided by said gages.

26. A trimming machine having, in combination, .an anvil provided with a cylindrical surface for supporting a margin of flexible material, and a rotary rasp arranged for substantial engagement with said surface and shaped to form with the anvil an opening having the general shape of a letter V and through which said margin may be fed, said anvil being rotatable about an axis which lies substantially in the plane of rotation of the rasp and being adjustable about an axis which is disposed substantially parallel to the axis of rotation of the rasp and passes through the bottom of said opening.

27. In a trimming machine, a rasp rotatable about an axis, an anvil mounted for rotation about an axis disposed at a substantial angle to the axis of rotation of the rasp, said anvil being constructed and arranged to support the projecting margin of a cover secured to a heel against the rasp, and a member constructed and arranged to be progressively engaged by the heel to guide the margin in a path disposed generally lengthwise of the axis of rotation 01' the rasp and past the rasp to skive the margin of the cover by a series of cuts each of which progresses toward an adjacent edge of the margin of the cover.

LEWIS J. BAZZONI.

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