Dust mop frame

• US 4,225,998 A
• Filed: 03/20/1979
• Issued: 10/07/1980
• Est. Priority Date: 03/20/1979
• Status: Expired due to Term

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Thielen, James E.
• Primary Examiner(s): Roberts, Edward L.
• Application Number:
  US06/022,312
• Time in Patent Office: 567 Days
• Field of Search: 15/231, 15/232, 15/233, 51/382, 51/384, 51/385-388
• US Class Current: 15/231
• CPC Class Codes: A47L 13/256 for mops made of cloth

Abstract

A dust mop frame suited for holding a dusting fabric with a central portion of the fabric extending across the bottom surface of the frame and over opposite edge portions and extending to the top surface includes a plurality of toggle assemblies for retaining the edge portions of the fabric on the top surface. The toggle assemblies are arranged in opposed sets of at least one toggle assembly adjacent each edge portion of the frame. The toggle assemblies comprise a toggle member having a pivot axis, an arm portion projecting generally radially from the axis, a lip portion spaced from an axis projecting from one side of the arm portion and extending parallel to the axis, a curved portion having an arcuate surface disposed around the pivot axis, means mounting the toggle member on the frame for pivotal movement around the axis, a spring mounted on the frame adapted to frictionally engage and slide along the arcuate surface upon movement of the toggle member.

Claims

1. A dust mop frame having opposite top and bottom surfaces and being adapted to receive dusting fabric with a central portion of said fabric extending across said bottom surface and opposite edge portions of said frame extending onto said top surface;

and

means for retaining the edge portions of said fabric on said top surface comprising a plurality of toggle assemblies, each of said toggle assemblies being disposed in opposed sets with at least one toggle assembly adjacent each of said edge portions, each toggle assembly comprising;

a toggle member having a pivot axis, an arm portion projecting generally radially from said axis, a lip portion spaced from said axis, projecting from one side of said arm portion and extending parallel to said axis, and a curved portion having an arcuate surface disposed around said pivot axis;

means mounting said toggle member on said frame for positionable pivotable movement around said axis between a release position with said lip spaced from the top surface of said frame to afford insertion of the edge portion of said dusting fabric therebetween, and an engage position with said lip pressing the edge portion of said dusting fabric therebetween against said top surface;

a spring mounted on said frame and having a portion adapted to frictionally engage and slide along said arcuate surface upon movement of said toggle member between said release and engage positions; and

the adjacent surfaces of said frame and said lip being shaped to hold the edge portion of said fabric therebetween when said toggle member is in its engage position thereby to restrict the withdrawal of the fabric.

2. A dust mop frame according to claim 1 wherein said frame is an elongate member having spired ends and includes opposed sets of said toggle assemblies adjacent each of said ends.

3. A dust mop frame according to claim 1 wherein each of said toggle members further includes a handle portion extending parallel to said pivot axis and projecting from the side of said pivot arm opposite said lip portion and a terminal end portion projecting past the edge of said frame when said toggle member is in said engage position.

4. A dust mop frame according to claim 1 wherein said arcuate surface is disposed eccentrically around said pivot axis to provide a first portion of said arcuate surface spaced a first distance from said axis and a second portion spaced a second distance from said axis which is less than said first distance;

and said spring portion bears to a greater extent against the first portion of said arcuate surface when said toggle member is in its engage position, and bears to a lesser extent against the second portion of said arcuate surface when said toggle members is in its release position.

5. A dust mop frame according to claim 1 wherein said frame has openings recessed from said top surface adapted to receive said lips when said toggle members are in their engage position.

6. A dust mop comprising the dust mop frame of claim 1 having fastened thereto a handle holder fitted with a handle.

7. The dust mop of claim 6 wherein said handle holder is a frictional universal joint.

8. A dust mop frame having opposite top and bottom surfaces and being adapted to receive a dusting fabric with a central portion of said fabric extending across said bottom surface and opposite edge portions of said frame extending onto said top surface;

and

means for retaining the edge portions of said fabric on said top surface comprising a plurality of toggle assemblies, each of said toggle assemblies being disposed in opposed sets with at least one toggle assembly adjacent each of said edge portions, each toggle assembly comprising;

a toggle member having a pivot axis, an arm portion projecting generally radially from said axis, a lip portion spaced from said axis projecting from one side of said arm portion and extending parallel to said axis, an eccentric portion having an arcuate surface disposed eccentrically around said pivot axis to provide a first portion of said arcuate surface spaced a first distance from said axis and a second portion spaced a second distance from said axis which is less than said first distance;

means mounting said toggle member on said frame for positionable pivotable movement around said axis between a release position with said lip spaced from the top surface of said frame to afford insertion of the edge portion of said dusting fabric therebetween, and an engage position with said lip pressing the edge portion of said dusting fabric therebetween against said top surface;

a spring mounted on said frame and having a portion adapted to frictionally engage and slide along said arcuate surface upon movement of said toggle member between said release and engage positions with said spring portion bearing to a greater extent against the first portion of said arcuate surface when said toggle member is in its engage position, and bearing to a lesser extent against the second portion of said arcuate surface when said toggle member is in its release position; and

the adjacent surfaces of said frame and said lip being shaped to hold the edge portion of a said fabric therebetween when said toggle member is in its engage position thereby to restrict the withdrawal of the fabric.