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Claims for Patent: 3,800,481

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Claims for Patent: 3,800,481

Title: HINGE TYPE UNITS PERMANENTLY MOUNTED IN A CYLINDRICAL HUB STRUCTURE WITH REPLACEABLE FINISHING PACKS PROVIDED FOR THE UNITS
Abstract:The rotary flap or finishing wheel or tool has a plurality of radially extending finishing units or packs mounted in a circumferential series on a hub structure. The finishing units are mounted on the body structure by a dual clip-type assembly including an inner axially elongated and rigid clip member forming the primary component of the pack and an axially elongated outer clip member supporting or carrying the finishing or fill material and forming the secondary components of the finishing unit. The mount of the inner clip member is afforded at an inner axially extending through-bore therein which encircles an axial pin component located adjacent the outer periphery of the hub structure. The inner clip member has an axially elongated, keyhole-type slot or groove that opens re-entrantly along the entire axial length of the outer free clip end. Replaceable units of fill or finishing material are each constituted in part by the secondary or outer clip component or member having radial arms which are coextensive in axial length with the finishing material and are stapled in place within the latter. The arms integrally connect with one another at a radially inner bight at which, along with a telescoped inner wear sleeve, the pre-assembled finishing unit-secondary clip member -- is telescoped into the re-entrant keyhole recess of the primary clip member. Either one or both of the clip members of each finishing unit are mounted for pivotal movement.
Inventor(s): Belanger; James A. (Livonia, MI)
Assignee: Belanger, Inc. (Northville, MI)
Application Number:05/253,237
Patent Claims: 1. A pack unit adapted to be mounted on a rotary hub structure, comprising a primary, radially inner clip member having means to pivotally engage the same with the hub structure to swing individually on an axis radially outwardly paralleling the rotative axis of the structure, a unit of finishing material, and means pivotally and replaceably mounting said unit of finishing material on said primary clip member to swing individually relative thereto on an axis paralleling the axes of the structure and inner clip member, said last-named means comprising a secondary, radially outer clip member having a radially inner portion at which it is pivotally and releasably engaged with said primary clip member in spaced relation to the axis of swing of the latter, and means fixedly connecting said outer or secondary clip member to said unit of finishing material at a radially inner portion of the latter.

2. The pack unit of claim 1, in which said primary clip member is relatively rigid and is provided with a first formation in a radially inner body portion thereof at which said primary clip member is pivotally engaged with the structure, and a further formation radially outward of said first formation at which said secondary clip member is thus pivotally and replaceably engaged with the primary clip member.

3. The pack unit of claim 1, in which said primary clip member is relatively rigid and said secondary clip member is of sheet-like material shaped to afford a portion at which the secondary clip member is pivotally engaged with said primary clip member.

4. The pack unit of claim 2, in which said secondary clip member is of sheet-like material shaped to afford a portion at which the secondary clip member is pivotally engaged with said further formation of said primary clip member.

5. The pack unit of claim 2, in which said secondary clip member is of sheet-like material shaped to afford a radially inner bight portion at which the secondary clip member is pivotally engaged with said further formation of said primary clip member.

6. The pack unit of claim 2, in which said first formation of the primary clip member is an axially extending bore in said inner body portion, said further formation comprising a slot in the primary member paralleling said axes and opening externally of that member, said portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement thereof and of the unit of finishing material carried thereby on said primary clip member.

7. The pack unit of claim 3, in which said first formation of the primary clip member is an axially extending bore in said inner body portion, said further formation comprising a slot in the primary member paralleling said axes and opening externally of that member, said portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement thereof and of the unit of finishing material carried thereby on said primary clip member.

8. The pack unit of claim 4, in which said first formation of the primary clip member is an axially extending bore in said inner body portion, said further formation comprising a slot in the primary member paralleling said axes and opening externally of tha member, said portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement thereof and of the unit of finishing material carried thereby on said primary clip member.

9. The pack unit of claim 5, in which said first formation of the primary clip member is an axially extending bore in said inner body portion, said further formation comprising a slot in the primary member paralleling said axes and opening externally of that member, said bight portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement of the clipped unit of finishing material on said primary clip member.

10. The pack unit of claim 9, in which said bight portion of said secondary clip member has an axially elongated spine element disposed therein.

11. The pack unit of claim 9, in which said bight portion of said secondary clip member has an axially elongated spine element disposed therein, and a sleeve element interposed between said spine element and said bight portion.

12. The pack unit of claim 1, in which the pivotal and releasable engagement of said secondary clip member is at a point radially outwardly of said hub structure, the pivotal engagement of the primary clip member with said structure being a permanent one as compared with said engagement of the secondary clip member.

13. The pack unit of claim 3, in which the pivotal and releasable engagement of said secondary clip member is at a point radially outwardly of said hub structure, the pivotal engagement of the primary clip member with said structure being a permanent one as compared with said engagement of the secondary clip member.

14. The pack unit of claim 5, in which the pivotal and releasable engagement of said secondary clip member is at a point radially outwardly of said hub structure, the pivotal engagement of the primary clip member extrusion with said structure being a permanent one as compared with said engagement of the secondary clip member.

15. A finishing pack unit adapted to be mounted on a hub structure of a rotary type finishing wheel, comprising a primary inner clip member having means for mounting the same on the hub structure, a unit of finishing material, and means replaceably mounting said unit of finishing material on said primary clip member, said last-named means comprising a secondary clip member having an inner portion which is pivotally and releasably engaged with said primary clip member, and means fixedly connecting said secondary clip member to said unit of finishing material at an inner portion of the latter, said secondary clip member being adapted to swing individually on an axis radially outwardly paralleling the rotative axis of the hub structure.

16. The pack unit of claim 15, in which said primary inner clip member includes means adapted to pivotally engage the hub structure.

17. The pack unit of claim 15, in which both of said clip members includes means adapted for pivotally mounting the primary clip member on the hub structure and the secondary clip member on the primary clip member, each of said clip members being adapted to swing individually on an axis radially outwardly paralleling the rotative axis of the hub structure.

18. The pack unit of claim 15, in which said primary clip member is relatively rigid and is provided with a first formation in a radially inner body portion thereof at which said primary clip member is adapted to pivotally engage the hub structure, and a further formation radially outward of said first formation at which said secondary clip member is replaceably engaged with the primary clip member.

19. The pack unit of claim 15, in which said primary clip member is relatively rigid and said secondary clip member is of sheet-like material shaped to afford a portion at which the secondary clip member is pivotally engaged with said primary clip member.

20. The pack unit of claim 18, in which said secondary clip member is of sheet-like material shaped to afford a portion at which the secondary clip member is pivotally engaged with said further formation of said primary clip member.

21. The pack unit of claim 18, in which said secondary clip member is of sheet-like material shaped to afford a radially inner bight portion at which the secondary clip member is pivotally engaged with said further formation of said primary clip member.

22. The pack unit of claim 18, in which said first formation of the primary clip member is an axially extending bore in said extrusion body portion, said further formation comprising a slot in the primary clip member opening externally of that member, said portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement of the clipped unit of finishing material on said primary clip member.

23. The pack unit of claim 21, in which said first formation of the primary clip member is an axially extending bore in said inner body portion, said further formation comprising a slot in the primary member paralleling said axes and opening externally of that member, said bight portion of said secondary clip member having releasable axial sliding engagement in said slot to enable replacement of the clipped unit of finishing material on said primary clip member.

24. The pack unit of claim 23, in which said bight portion of said secondary clip member has an axially elongated spine element disposed therein.

25. The pack unit of claim 23, in which said bight portion of said secondary clip member has an axially elongated spine element disposed therein, and a sleeve element interposed between said spine element and said bight portion.

26. The pack unit of claim 17, in which the pivotal and releasable engagement of said secondary clip member is at a point radially outwardly of the hub structure, the pivotal engagement of the primary clip member with the hub structure being a permanent one as compared with said engagement of the secondary member.
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