Machine for performing a progressive operation on marginal portions of a shoe in the manufacture thereof

Machine for performing an operation progressively along marginal portions of the bottoms of lasted shoes, comprising

• a shoe support for supporting a lasted shoe such that the shoe bottom is positioned in a desired relationship with a height datum of the machine,
• a tool support arrangement by which a holder is supported in which a tool is mounted for rotation about an axis extending heightwise of the bottom of a shoe supported by the shoe support, said holder being supported as aforesaid for pivotal movement about a first axis extending transversely of such shoe bottom and also for pivotal movement about a second axis extending lengthwise of such shoe bottom, and said first and second axes intersecting with each other at a point which lies on the axis of rotation of such tool whereby, with an operating surface portion of the tool disposed at said point, said operating surface portion remains undisplaced from said point when pivotal movement about either of the first and second axes is effected, first drive means for effecting relative movement between the shoe support and the tool holder in directions extending lengthwise and transversely of the bottom of a shoe supported by the shoe support, whereby a tool supported by the tool holder can be caused to follow the plan contour of such shoe bottom,
• second drive means for effecting relative movement between the shoe support and the tool holder in a direction extending heightwise of the shoe bottom and thus for varying the relationship between a tool supported by said holder and said height datum whereby, as relative lengthwise and transverse movement takes place as aforesaid between the shoe support and the tool support arrangement, such tool can be caused to follow the height contour of the shoe bottom, and
• third and fourth drive means for effecting pivotal movement of the tool holder respectively about the first and second axes, whereby a tool supported by the tool holder can be disposed, as it is caused to follow the plan and height contours of the shoe bottom as aforesaid, with its axis of rotation extending substantially normally, in directions both lengthwise and transversely of the shoe bottom, to the shoe bottom portion at the region of engagement with its operating surface,
• wherein the first, second, third and fourth drive means comprise n.c. motors operable in accordance with a programmed instruction appropriate to the style of shoe being operated upon.

Machine for performing an operation progressively along marginal portions of the bottoms of lasted shoes, comprising

• a shoe support for supporting a lasted shoe such that the shoe bottom is positioned in a desired relationship with a height datum of the machine,
• a tool support arrangement by which a holder is supported in which a tool is mounted for rotation about an axis extending heightwise of the bottom of a shoe supported by the shoe support, said holder being supported as aforesaid for pivotal movement about a first axis extending transversely of such shoe bottom and also for pivotal movement about a second axis extending lengthwise of such shoe bottom, and
• said first and second axes intersecting with each other at a point which lies on the axis of rotation of such tool whereby, with an operating surface portion of the tool disposed at said point, said operating surface portion remains undisplaced from said point when pivotal movement about either of the first and second axes is effected,
• first drive means for effecting relative movement between the shoe support and the tool holder in directions extending lengthwise and transversely of the bottom of a shoe supported by the shoe support, whereby a tool supported by the tool holder can be caused to follow the plan contour of such shoe bottom,
• second drive means for effecting relative movement between the shoe support and the tool holder in a direction extending heightwise of the shoe bottom and thus for varying the relationship between a tool supported by said holder and said height datum whereby, as relative lengthwise and transverse movement takes place as aforesaid between the shoe support and the tool support arrangement, such tool can be caused to follow the height contour of the shoe bottom, and
• third and fourth drive means for effecting such pivotal movement respectively about the first and second axes whereby a tool supported by the tool holder can be disposed, as it is caused to follow the plan and height contours of the shoe bottom as aforesaid, with its axis of rotation extending substantially normally, in directions both lengthwise and widthwise of the shoe bottom, to the shoe bottom portion at the region of engagement with its operating surface, wherein the tool is mounted in the holder for sliding movement in a direction extending along its axis of rotation such that its operating surface portion is capable of taking up a position along said axis of rotation at either side of the point of intersection of said first and second axes according to the relationship between the shoe bottom and the height datum of the machine.

Machine for performing an operation progressively along marginal portions of the bottoms of lasted shoes, comprising

• a shoe support for supporting a lasted shoe such that the shoe bottom is positioned in a desired relationship with a height datum of the machine,
• a tool support arrangement
• first drive means for effecting relative movement between the shoe support and the tool support arrangement in directions extending lengthwise and transversely of the bottom of a shoe supported by the shoe support, whereby a tool supported by the tool support arrangement can be caused to follow the plan contour of such shoe bottom, and
• second drive means for effecting relative movement between the shoe support and the tool support arrangement in a direction extending heightwise of the shoe bottom and thus for varying the relationship between a tool supported by said arrangement and said height datum whereby, as relative lengthwise and transverse movement takes place as aforesaid between the shoe support and the tool support arrangement, such tool can be caused to follow the height contour of the shoe bottom,
• wherein the tool support arrangement supports a carrier for pivotal movement about a first axis extending lengthwise of the bottom of a shoe supported by the shoe support, said carrier itself supporting a tool holder through a linkage system whereby the tool holder can be caused to pivot about a second axis extending widthwise of such shoe bottom, in which tool holder a tool is mounted for rotation about an axis extending heightwise of the shoe bottom, the construction and arrangement being such that the first and second axes intersect with one another at a point which lies on the axis of rotation of the tool, the machine further comprising third and fourth drive means for effecting such pivotal movement respectively about the first and second axes whereby a tool supported by the tool holder can be disposed, as it is caused to follow the plan and height contours of the shoe bottom as aforesaid, with its axis of rotation extending substantially normally, in directions both lengthwise and widthwise of the shoe bottom, to the shoe bottom portion at the region of engagement with its operating surface.

Machine for performing an operation progressively along side wall portions of lasted shoes, comprising

• a shoe support for supporting a lasted shoe such that side wall portions of the shoe are exposed,
• a tool support arrangement by which a holder for a rotary radial tool is supported for pivotal movement about a first axis extending transversely of the bottom of a shoe supported by the shoe support and also for pivotal movement about a second axis extending lengthwise of such shoe bottom, said first and second axes intersecting with each other at a point which lies on the axis of rotation of such tool so that said point, remains undisplaced in relation to said axis of rotation when pivotal movement about either of the first and second axes is effected,
• first drive means for effecting relative movement between the shoe support and the tool holder in directions extending lengthwise and transversely of the bottom of a shoe supported by the shoe support,
• second drive means for effecting relative movement between the shoe support and the tool holder in a direction extending heightwise of the shoe bottom whereby a tool supported by the tool holder can be caused to operate progressively along side wall portions of the shoe, and
• third and fourth drive means for effecting pivotal movement of the tool holder respectively about the first and second axes, whereby a tool supported by the tool holder can be disposed, as it is caused to operate progressively as aforesaid, with its axis of rotation extending substantially parallel, to a line which lies in a plane extending transversely of the shoe bottom and perpendicularly thereto and passing through the region of engagement of the operating surface portion of the tool with the side wall portion and which extends along or tangentially to the side wall portion in said region.