Pull-apart mounting hub

• US 4,541,207 A
• Filed: 02/06/1984
• Issued: 09/17/1985
• Est. Priority Date: 02/06/1984
• Status: Expired due to Term

• Current Assignee: Flo-Pac Corporation (Carlisle Cos., Inc.)
• Original Assignee: Flo-Pac Corporation (Carlisle Cos., Inc.)
• Inventors: Antonson, Douglas M.
• Primary Examiner(s): Olszewski, Robert P.
• Application Number:
  US06/577,385
• Time in Patent Office: 589 Days
• Field of Search: 51/170 T, 51/177, 51/358, 51/376, 51/377, 51/382, 51/383, 51/388, 51/391, 15/230.17, 15/230.19, 24/90.5, 24/511, 24/572, 403/256, 403/261, 403/344, 411/508, 411/509, 411/510, 411/182
• US Class Current: 451/508
• CPC Class Codes: B24D 9/085 Devices for mounting sheets on a backing plate
• CPC Class Codes: F16B 2200/406 Clamping parts being collars, bushings or wedges
• CPC Class Codes: Y10T 24/3602 Loss-preventing devices
• CPC Class Codes: Y10T 24/44479 Flat or leaf spring

Abstract

A pull-apart mounting hub for mounting a scrubbing pad or the like to a drive disc on a power-driven scrubbing machine or the like. The hub has two parts: a base mounted to the drive disc, the base having a cylindrical collar and an annular shoulder; and a split-ring retainer. The split-ring retainer is resilient and generally cylindrical, and includes a retaining flange extending radially outwardly for retaining the pad, an annular lip engageable with the annular shoulder of the collar to lock the two pieces together, and a tab adjacent the split for urging the lip adjacent the split out of engagement with the annular shoulder of the collar to enable the retainer to be removed from the collar.

Claims

1. A pull-apart mounting hub for mounting a pad having a circular mounting hole to a drive disc on a power-driven machine, comprising:

a base mountable coaxially to the drive disc and having a generally cylindrical collar and an annular shoulder; and

a generally cylindrical, resilient split-ring retainer including;

an annular lip extending radially from the retainer and engageable with the annular shoulder of the collar to lock the retainer to the collar; and

manually operable tab means adjacent the split extending generally radially from the retainer in the opposite direction as the annular lip for resiliently urging the annular lip adjacent the split out of engagement with the annular shoulder of the collar to enable the retainer to be removed from the collar.

2. The mounting hub of claim 1 wherein the collar and retainer respectively include outwardly extending, generally parallel flanges spaced to receive between them the portion of the pad adjacent its circular mounting hole when the retainer is locked to the collar.

3. The mounting hub of claim 1 wherein the exterior surface of the retainer snugly engages the inner surface of the base collar.

4. The mounting hub of claim 2 wherein the inner surface of the collar is tapered outwardly in the axial direction of the retainer flange, said surface defining a camming surface which aids in compressing the retainer radially as the retainer is inserted into the collar.

5. The mounting hub of claim 4 wherein said surface is tapered along only a portion of the collar'"'"'s axial length, the point at which the taper ceases defining an annular fulcrum which assists in urging the annular lip out of engagement with the collar shoulder as the retainer is removed from the collar.

6. The mounting hub of claim 1 wherein the radial thickness of the annular lip decreases adjacent the split.

7. A pull-apart mounting hub for mounting a pad having a circular mounting hole to a drive disc on a power-driven machine comprising:

a base mountable coaxially to the support disc and having a cylindrical collar, the collar having an annular shoulder formed therein, and the inner surface of the collar tapering along a portion of its axial length radially outwardly in the direction away from the collar shoulder;

a generally cylindrical, resilient, split-ring retainer including;

a generally cylindrical body;

a retaining flange extending radially outwardly from the body;

an annular lip, spaced axially from the retaining flange, and formed to be received by the annular shoulder so that the collar is held between the retaining flange and the annular lip; and

manually operable tab means adjacent the split extending coplanarly with the retaining flange radially inwardly from the cylindrical body for resiliently urging the annular lip adjacent the split out of engagement with the shoulder of the collar to enable the retainer to be removed from the collar.

8. A pull-apart mounting hub for mounting a pad having a circular mounting hole to a drive disc on a power-driven machine comprising:

a base mountable coaxially to the drive disc and having a generally cylindrical collar and an annular shoulder; and

a retainer including a generally cylindrical body, a flange extending radially outwardly from the body for retaining the pad, and lip means carried by the cylindrical body and extending radially therefrom for engaging the annular shoulder of the collar;

the cylindrical body of the retainer including at least one discontinuity enabling pivotal movement of at least a portion of the cylindrical body about an axis tangent thereto, and manually operable tab means adjacent the discontinuity extending generally radially from the retainer in the opposite direction from the lip means for resiliently urging said cylindrical body portion to pivot about said axis and to at least partially disengage the lip means from the shoulder.

9. A pull-apart mounting hub for mounting a pad having a circular mounting hold to a drive disc on a power-driven machine, comprising:

a base mountable coaxially to the drive disc and having a generally cylindrical collar and an annular shoulder; and

a generally cylindrical, resilient split-ring retainer including;

an annular lip engageable with the annular shoulder of the collar to lock the retainer to the collar; and

a manually operable tab extending generally radially inwardly from the cylindrical body adjacent the split for resiliently urging the annular lip adjacent the split out of engagement with the annular shoulder of the collar to enable the retainer to be removed from the collar;

the collar and retainer respectively including outwardly extending, generally parallel flanges spaced to receive between them the portion of the pad adjacent its circular mounting hole when the retainer is locked to the collar, the retainer flange being generally co-planar with the manually operable tab.