Roughing machine with roughing tool sharpening mechanism

Claim 2

A machine for roughing the margin of an upper of a shoe assembly, said shoe assembly comprising at last having an insole located on its bottom and the upper mounted thereon with the upper margin lying against and being secured to the periphery of the insole, comprising: a rougher unit having a roughing tool mounted thereto, mounted for heightwise movement between an upper idle roughing tool position wherein the roughing tool is spaced from the upper margin of a shoe assembly supported in the machine and lower working roughing tool positions wherein the roughing tool is effective to perform a roughing operation to rough the upper margin of the shoe assembly during relative movement of the upper margin with respect to the roughing tool; means for initially retaining the rougher unit in said idle position; means for thereafter lowering the rougher unit to said working positions so as to enable said roughing operation to be performed; means, effective after the completion of said roughing operation, to return the rougher unit to said idle position; a sharpening tool mounted for movemenT between a sharpening tool idle position wherein the sharpening tool is spaced from the roughing tool and a sharpening tool working position wherein the sharpening tool is in engagement with the roughing tool; means for normally retaining the sharpening tool in said sharpening tool idle position; and means, effective when the roughing tool is in said roughing tool idle position, to first move the sharpening tool into said sharpening tool working position and then return the sharpening tool to said sharpening tool idle position.

Claim 3

The machine of claim 1 wherein the roughing tool is mounted to the rougher unit for rotation in first and second directions; wherein the roughing tool comprises a brush having radially projecting bristles; and further comprising: means for rotating the roughing tool in said first direction while the rougher unit is in said working roughing tool positions; and means, effective when the sharpening tool is in said sharpening tool working position, to rotate the roughing tool in said second direction.

Claim 4

The machine of claim 2 wherein the means for moving the rougher unit between said idle and working roughing tool positions comprises: a first motor so connected to said rougher unit as to be effective, in response to actuations of said first motor, to effect the rougher unit movements between said idle and working roughing tool positions; and wherein the means for effecting said rotations of the roughing tool in said directions comprises: a second reversible motor drivingly connected to the roughing tool; means, effective concomitantly with the actuation of said first motor to move the rougher unit from a roughing tool working position to the roughing tool idle position, to cause the second motor to rotate the roughing tool in its second direction and to move the sharpening tool from said sharpening tool idle position to said sharpening tool working position; and further comprising: means, effective concomitantly with the actuation of said first motor to move the rougher unit from the roughing tool idle position to a roughing tool working position while the sharpening tool is in its idle position, to cause said second motor to rotate the roughing tool in said first direction.

Claim 5

The machine of claim 3 further comprising: means mounting the sharpening tool for rotation; and means so drivingly connecting the sharpening tool to said second motor as to cause the second motor to rotate the sharpening tool in the same direction as it rotates the roughing tool.

Claim 6

The machine of claim 1 further comprising: a sharpener unit; means mounting the sharpening tool to the sharpener unit; means so mounting the sharpener unit for heightwise movement that the sharpening tool is located above the roughing tool; and sharpening tool positioning means interposed between the rougher unit and the sharpener unit effective to so locate the sharpener unit as to locate the sharpening tool in said sharpening tool positions and to so move the sharpener unit as to move the sharpening tool between said sharpening tool positions.

Claim 7

The machine of claim 5 wherein the roughing tool is mounted to the rougher unit for rotation in first and second directions; wherein the roughing tool comprises a brush having radially projecting bristles; and further comprising: means for rotating the roughing tool in said first direction while the rougher unit is in said first roughing tool position; and means, effective when the sharpener unit is so located as to locate the sharpening tool in said first sharpening tool working position, to rotate the roughing tool in said second direction.

Claim 8

The machine of claim 6 wherein the means for moving the rougher unit between said idle and working roughing tool positions comprises: a first motor so connected to said rougher unit as to be effective, in response to actuations of said first motor, to effect the rougher unit movements between said idle and working roughing tool positions; and wherein the means for effecting said rotations of the roughiNg tool in said directions comprises: a second reversible motor drivingly connected to the roughing tool; means, effective concomitantly with the actuation of said first motor to move the rougher unit from a roughing tool working position to the roughing tool idle position, to cause the second motor to rotate the roughing tool in its second direction and to cause the positioning means to so move the sharpener unit as to move the sharpening tool from said sharpening tool idle position to said sharpening tool working position; and further comprising: means, effective concomitantly with the actuation of said first motor to move the rougher unit from the roughing tool idle position to a roughing tool working position while the positioning means so locates the sharpener unit as to locate the sharpening tool in its idle position, to cause the second motor to rotate the roughing tool in said first direction.

Claim 9

The machine of claim 7 further comprising: means mounting the sharpening tool to the sharpener unit for rotation; and means so drivingly connecting the sharpening tool to said second motor as to cause said second motor to rotate the sharpening tool in the same direction as it rotates the roughing tool.

Claim 10

A machine for roughing the margin of an upper of a shoe assembly, said shoe assembly comprising a last having an insole on its bottom and the upper mounted thereon with the upper margin lying against and being secured to the periphery of the insole, comprising: a sleeve; a shaft so located within the sleeve as to be coaxial with the sleeve; a rougher unit, having a roughing tool rotatably mounted to its front, mounted to the sleeve for heightwise movement about the sleeve axis between an upper roughing tool idle position wherein the roughing tool is spaced from the upper margin of a shoe assembly supported in the machine and lower roughing tool working positions wherein the roughing tool is effective to perform a roughing operation to rough the upper margin of the shoe assembly during relative movement of the upper margin with respect to the roughing tool; powered means operatively connected to the shaft to rotate the shaft; first drive means so drivingly connecting the shaft and the roughing tool as to enable the powered means to rotate the roughing tool; a sharpener unit mounted to the sleeve for heightwise movement about the sleeve axis; a sharpening tool rotatably mounted to the front of the sharpener unit and located above the roughing tool; sharpening tool positioning means interposed between the rougher unit and the sharpener unit effective to so locate and move the sharpener unit that the sharpening tool can be located in and move between a sharpening tool idle position wherein the sharpening tool is spaced from the roughing tool and a sharpening tool working position wherein the sharpening tool is in engagement with the roughing tool; second drive means so drivingly connecting the sharpening tool and the shaft as to enable the powered means to rotate the sharpening tool while the sharpening tool is in said sharpening tool positions and during the movements of the sharpening unit to move the sharpening tool between said sharpening tool positions; means for initially retaining the rougher unit in said idle roughing tool position; means for thereafter lowering the rougher unit to a roughing tool working position so as to enable said roughing operation to be performed; means, effective after the completion of said roughing operation, to return the rougher unit to said roughing tool idle position; means for normally causing said positioning means to retain the sharpener unit in said sharpening tool idle position; and means, effective when the roughing tool is in said roughing tool idle position, to first cause the positioning means to so move the sharpener unit as to move the sharpening tool to said sharpening tool working position and then cause the positioning means to so move the sharpener unit as to return the sharpening tool to said sharpening tool idle position.

Claim 11

A machine for roughing the margin of an upper of a shoe assembly, said shoe assembly comprising a last having an insole on its bottom and the upper mounted thereon with the upper margin lying against and being secured to the periphery of the insole, comprising: a sleeve; a shaft so located within the sleeve as to be coaxial with the sleeve; a rougher unit, having a roughing tool rotatably mounted to its front, mounted to the sleeve for heightwise movement about the sleeve axis between an upper roughing tool idle position wherein the roughing tool is spaced from the upper margin of a shoe assembly supported in the machine and lower roughing tool working positions wherein the roughing tool is effective to perform a roughing operation to rough the upper margin of the shoe assembly during relative movement of the upper margin with respect to the roughing tool; powered means operatively connected to the shaft to rotate the shaft; first drive means so drivingly connecting the shaft and the roughing tool as to enable the powered means to rotate the roughing tool; a sharpener unit mounted to the sleeve for heightwise movement about the sleeve axis; a sharpening tool rotatably mounted to the front of the sharpener unit and located above the roughing tool; sharpening tool positioning means interposed between the rougher unit and the sharpener unit effective to so locate and move the sharpener unit that the sharpening tool can be located in and move between a sharpening tool idle position wherein the sharpening tool is spaced from the roughing tool and a sharpening tool working position wherein the sharpening tool is in engagement with the roughing tool; second drive means so drivingly connecting the sharpening tool and the shaft as to enable the powered means to rotate the sharpening tool while the sharpening tool is in said sharpening tool positions and during the movements of the sharpening unit to move the sharpening tool between said sharpening tool positions; means for initially retaining the rougher unit in said idle roughing tool position; means for thereafter lowering the rougher unit to a roughing tool working position so as to enable said roughing operation to be performed; means, effective after the completion of said roughing operation, to return the rougher unit to said roughing tool idle position; means for normally causing said positioning means to retain the sharpener unit in said sharpening tool idle position; and means, effective when the roughing tool is in said roughing tool idle position, to first cause the positioning means to so move the sharpener unit as to move the sharpening tool to said sharpening tool working position and then cause the positioning means to so move the sharpener unit as to return the sharpening tool to said sharpening tool idle position.

Claim 12

The machine of claim 9 wherein the roughing tool comprises a brush having radially projecting bristles, and further comprising: means so constructing the powered means as to cause the shaft to rotate in opposite directions to thereby rotate the roughing tool and the sharpening tool in such a manner that both tools are rotated in first directions when the rougher unit is in said roughing tool working positions and to cause the shaft to rotate both tools in second directions when the sharpening tool is in said sharpening tool working position.

Claim 13

The machine of claim 10 wherein the means for moving the rougher unit between said idle and working roughing tool positions comprises: a first motor so connected to said rougher unit as to be effective, in response to actuations of said first motor, to effect the rougher unit movements between said idle and working roughing tool positions; and wherein the construction of the powered means for effecting the rotations of the shaft in opposite directions to effect the rotations of the roughing tool and the sharpening tool in said first and second directions comprises: a second reversible motor drivingly connected to the shaft; means, effective concomitantly with the actuation of said first motor to move the rougher unit from a roughing tool working position to a roughing tool idle position, to cause the second motor to so rotate the shaft as to rotate both tools in their second directions and to cause the positioning means to so move the sharpener unit as to move the sharpening tool from said sharpening tool idle position to said sharpening tool working position; and further comprising: means, effective concomitantly with the actuation of said first motor to move the rougher unit from the roughing tool idle position to a roughing tool working position while the positioning means so locates the sharpener unit as to locate the sharpening tool in its idle position, to cause the second motor to so rotate the shaft as to rotate both tools in their first directions.

Claim 14

A sharpening mechanism for use in a roughing machine that comprises: a sleeve; a shaft so located within the sleeve as to be coaxial with the sleeve; a rougher unit, mounted to the sleeve, extending forwardly of the sleeve; a roughing tool rotatably mounted to the front of the rougher unit; powered means operatively connected to the shaft to rotate the shaft; and first drive means so drivingly connecting the shaft and the roughing tool as to enable the motor to rotate the roughing tool; said sharpening mechanism comprising: a sharpener unit, mounted to the sleeve for heightwise movement about the sleeve axis, extending forwardly of the sleeve; a sharpening tool rotatably mounted to the front of the sharpener unit and located above the roughing tool; sharpening tool positioning means interposed between the rougher unit and the sharpener unit effective to move the sharpening tool between an idle sharpening tool position wherein its periphery is spaced from the roughing tool periphery and a working sharpening tool position wherein the peripheries of the roughing and sharpening tools are in engagement; and second drive means so drivingly connecting the sharpening tool and the shaft as to enable the powered means to rotate the sharpening tool while the sharpening tool is in said positions and during its movements between said positions.

Claim 15

A sharpening mechanism for use in a roughing machine that comprises: a sleeve; a shaft so located within the sleeve as to be coaxial with the sleeve; a rougher unit, mounted to the sleeve, extending forwardly of the sleeve; a roughing tool rotatably mounted to the front of the rougher unit; powered means operatively connected to the shaft to rotate the shaft; and first drive means so drivingly connecting the shaft and the roughing tool as to enable the motor to rotate the roughing tool; said sharpening mechanism comprising: a sharpener unit, mounted to the sleeve for heightwise movement about the sleeve axis, extending forwardly of the sleeve; a sharpening tool rotatably mounted to the front of the sharpener unit and located above the roughing tool; sharpening tool positioning means interposed between the rougher unit and the sharpener unit effective to move the sharpening tool between an idle sharpening tool position wherein its periphery is spaced from the roughing tool periphery and a working sharpening tool position wherein the peripheries of the roughing and sharpening tools are in engagement; and second drive means so drivingly connecting the sharpening tool and the shaft as to enable the powered means to rotate the sharpening tool while the sharpening tool is in said positions and during its movements between said positions.

Claim 16

The combination as defined in claim 12 wherein the roughing tool comprises: a brush having radially projecting bristles and wherein said powered means is so constructed as to cause the shaft to rotate the roughing tool and the sharpening tool in opposite directions in such a manner that both tools are rotated in first directions when the sharpening tool is in said idle sharpening tool position and both tools are rotated in second directions when the sharpening tool is in said working sharpening tool position.

Claim 17

The combination as defined in claim 13 wherein said first and second drive means are so constructed as to concomitantly rotaTe both tools in the same direction about their axes of rotation.

Claim 18

The combination as defined in claim 12 wherein said first and second drive means are so constructed as to concomitantly rotate both tools in the same direction about their axes of rotation.