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1. US5232316 - Hob construction

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[ EN ]
The invention claimed is:
1. A hob for a hobbing machine, comprising:
a cylindrical main body having a predetermined length and a circumferentially extending, non-slotted cylindrical surface;
a plurality of blades separate from said cylindrical main body and disposed upon said cylindrical main body such that radially inner edge portions of said blades abut said non-slotted cylindrical surface of said cylindrical main body;
flange means disposed upon opposite ends of said cylindrical main body and having a plurality of slots defined therein for receiving said plurality of blades therein, said flange means having a minor axial thickness as compared to the axial length of said cylindrical main body; and
chocking material disposed about said cylindrical main body and interposed between said plurality of blades so as to be solidified in place upon said cylindrical main body and between said plurality of blades for bonding said blades to said cylindrical main body, and for bonding said blades to each other.
2. A hob as defined in claim 1 wherein said flange means are integral with said main body.
3. A hob as defined in claim 1, wherein:
said flange means are removable from said cylindrical main body once said chocking material has solidified upon said cylindrical main body and between said plurality of blades.
4. A hob as defined in claim 1, wherein:
said chocking material is removable from said cylindrical main body and from between said plurality of blades for allowing removal of said plurality of blades from said slots of said flange means.
5. A hob as defined in claim 1 further comprising at least one aperture disposed on at least one of the blades for accepting chocking material therethrough for interlocking said at least one of the blades with other blades.
6. A hob as defined in claim 1 wherein a tight fit exists between edges of said slots and said blades effectively excluding entry of the chocking material between said edges and said blades.
7. A hob as set forth in claim 1, wherein:
said flange means have a predetermined radial depth extending radially outwardly from said cylindrical surface of said cylindrical main body; and
said chocking material has a predetermined radial depth which is substantially equal to said predetermined radial depth of said flange means.
8. A hob for a hobbing machine, comprising:
a cylindrical main body having a smooth, circumferentially continuous cylindrical surface;
a plurality of circumferentially spaced, axially extending blades separate from said cylindrical main body and disposed upon said cylindrical main body such that radially inner edge portions of said plurality of blades abut said smooth, circumferentially continuous cylindrical surface; and
adhesive chocking material disposed about said cylindrical main body and interposed between said plurality of blades so as to be solidified in place upon said cylindrical main body and between said plurality of blades for bonding said blades to said cylindrical main body, and for bonding said blades to each other.
9. A hob set forth in claim 8, further comprising:
flange means disposed upon opposite ends of said cylindrical main body and having a plurality of slots defined therein for receiving said plurality of blades therein, said flange means having an axial thickness which is substantially less than the axial length of said cylindrical main body.
10. A hob as set forth in claim 9, wherein:
said flange means are removable from said cylindrical main body once said chocking material has bonded said plurality of blades to said cylindrical main body and to each other.
11. A hob as set forth in claim 9, wherein:
said flange means are integral with said cylindrical main body.
12. A hob as set forth in claim 9, wherein:
said chocking material is removable from said cylindrical main body and from between said plurality of blades so as to permit removal of said plurality of blades from said slots of said flange means.
13. A hob as set forth in claim 9, wherein:
a tight fit is defined between said slots of said flange means and said plurality of blades so as to effectively exclude entry of said adhesive chocking material between said plurality of blades and said flange means.
14. A hob as set forth in claim 9, wherein:
said flange means have a predetermined radial depth extending radially outwardly from said cylindrical surface of said cylindrical main body; and
said adhesive chocking material has a predetermined radial depth which is substantially equal to said predetermined radial depth of said flange means.
15. A hob as set forth in claim 8, wherein:
each one of said plurality of blades has aperture means defined therein for permitting said adhesive chocking material to flow therethrough prior to said solidification of said adhesive chocking material such that upon solidification of said adhesive chocking material, said plurality of blades are interlockingly bonded to each other.
16. A hob for a hobbing machine, comprising:
a cylindrical main body having a predetermined axial length and a circumferential extent;
a plurality of circumferentially spaced, axially extending blades separate from said cylindrical main body and disposed upon said cylindrical main body;
flange means disposed upon opposite ends of said cylindrical main body and having a plurality of slots defined therein for receiving said plurality of blades therein, said flange means having an axial thickness which is substantially less than the axial length of said cylindrical main body;
aperture means defined within said plurality of blades; and
adhesive chocking material disposed about said cylindrical main body, interposed between said plurality of blades, and passing through said aperture means of said plurality of blades for bonding said plurality of blades to said cylindrical main body, for bonding said plurality of blades to each other, and for mechanically interlocking said plurality of blades to each other upon solidification of said adhesive chocking material upon said cylindrical main body and between said plurality of blades.
17. A hob as set forth in claim 16, wherein:
said flange means are integral with said cylindrical main body.
18. A hob as set forth in claim 16, wherein:
said flange means are removable from said cylindrical main body once said adhesive chocking material has solidified upon said cylindrical main body and between said plurality of blades.
19. A hob as set forth in claim 16, wherein:
said adhesive chocking material is removable from said cylindrical main body and from between said plurality of blades so as to permit removal of said plurality of blades from said slots of said flange means.
20. A hob as set forth in claim 16, wherein:
a tight fit is defined between said slots of said flange means and said plurality of blades so as to effectively exclude entry of said adhesive chocking material between said plurality of blades and said flange means.