U.S. patent number 3,849,825 [Application Number 05/338,429] was granted by the patent office on 1974-11-26 for mop head support tool.
This patent grant is currently assigned to Deering Milliken Research Corporation. Invention is credited to Willard H. Shortte, Jr..
United States Patent |
3,849,825 |
Shortte, Jr. |
November 26, 1974 |
MOP HEAD SUPPORT TOOL
Abstract
Mop head support tool particularly designed for reception,
support, quick release, and replacement of a wet-type mop head, and
wherein the mop head retaining means comprises a trough-shaped
section attached to the handle of the tool, a first rod-shaped
section cooperating therewith to grip a mop head and being movable
into and out of mating relation with the trough-shaped section by
means of a second rod-shaped section attached to the first section
and extending along the axis of the handle.
Inventors: |
Shortte, Jr.; Willard H.
(LaGrange, GA) |
Assignee: |
Deering Milliken Research
Corporation (Spartanburg, SC)
|
Family
ID: |
26815376 |
Appl.
No.: |
05/338,429 |
Filed: |
March 6, 1973 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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117518 |
Feb 22, 1971 |
3735441 |
May 29, 1973 |
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Current U.S.
Class: |
15/152;
15/153 |
Current CPC
Class: |
A47L
13/25 (20130101) |
Current International
Class: |
A47L
13/20 (20060101); A47L 13/25 (20060101); A47l
013/24 () |
Field of
Search: |
;15/115,116R,116A,119R,119A,12R,12A,146,147,148,149,150-154,173,178,194
;294/103 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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172,668 |
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Jan 1935 |
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CH |
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1,517,639 |
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Feb 1968 |
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FR |
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24,075 |
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Jul 1950 |
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SF |
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681,261 |
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Oct 1952 |
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GB |
|
Primary Examiner: Blum; Daniel
Attorney, Agent or Firm: Wilburn, Jr.; Luke J. Petry; H.
William
Parent Case Text
This is a division of application Ser. No. 117,518, filed Feb. 22,
1971, now U.S. Pat. No. 3,735,441 issued May 29, 1973.
Claims
That which is claimed is:
1. A tool for supporting a mop head comprising an elongate handle
and mop head retaining means attached to one end of said handle,
said retaining means comprising a trough-shaped section having
closed ends attached to said end of and extending generally
perpendicular to the axis of the handle, a first rod-shaped section
extending generally co-extensive with said trough-shaped section, a
second rod-shaped section attached to said first section extending
along the axis of said handle and operatively connected to the
handle for movement into and out of the end of the handle to locate
said first rod-shaped section in and out of mating relation with
the trough-shaped section to releasably grip and retain a mop head
therebetween, and wherein said first rod-shaped section comprises
first and second elongate portions extending in spaced generally
parallel relation generally perpendicular to the axis of the
handle, said portions being connected at one end with the other
ends thereof forming an open side whereby a mop head may be readily
inserted and retained therebetween and may be readily released
therefrom by gravity when the open side is positioned in a downward
facing direction.
2. A tool as defined in claim 1 including hand manipulatable means
operatively attached to said second rod-shaped section and handle
for moving said second section along the axis of said handle to
move the first rod-shaped section into and out of mating relation
with the trough-shaped section.
3. A tool as defined in claim 2 wherein said hand manipulatable
means comprises a sleeve threadably secured to the end portion of
said handle in surrounding relation thereto and means operatively
connecting said sleeve to said second rod-shaped section whereby
rotation of the sleeve moves the first rod-shaped section along the
axis of the handle selectively toward and away from the
trough-shaped section.
4. A tool as defined in claim 2 wherein said hand manipulatable
means includes a hand-engagable lever attached to and pivotally
movable toward and away from the handle for positioning the first
rod-shaped section in the trough-shaped section.
5. A tool as defined in claim 1 including means for adjusting the
distance between the trough-shaped section and the first rod-shaped
section when the rod-shaped section is in mating relation therewith
to compensate for variations in the mop head dimensions and thereby
facilitate retention of a mop head therebetween.
6. A tool for supporting a mop head comprising an elongate handle
and mop head retaining means attached to one end of said handle,
said retaining means comprising a trough-shaped section attached to
said end of and extending generally perpendicular to the axis of
the handle, a first rod-shaped section extending generally
co-extensive with said trough-shaped section, a second rod-shaped
section attached to said first section extending along the axis of
said handle and operatively connected thereto for sliding movement
into and out of the end of the handle to locate said first
rod-shaped section in and out of mating relation with the
trough-shaped section to releasably grip and retain a mop head
therebetween, and a hand-engagable lever operatively attached to
said second rod-shaped section and handle for moving said second
section along the axis of the handle and said first rod-shaped
section into and out of mating relation with the trough-shaped
section, said lever being pivotally movable between a first
position extending alongside, closely adjacent, and generally
parallel to the handle when the rod-shaped and trough-shaped
sections are in mating relation, and a second position extending
away from the handle when the first rod-shaped section is out of
mating relation with the trough-shaped section to release a mop
therefrom, and means operatively connected to said lever for
adjusting the position between the trough-shaped section and the
first rod-shaped section when they are in mating relation with each
other to compensate for variations in mop head dimensions while
maintaining said lever in said first position alongside said
handle.
Description
This invention relates to mops and, more particularly, to means for
removably securing a replaceable mop head on a mop handle.
In the use of mops to clean floors, particularly in commercial and
industrial establishments, it is a common practice to provide means
for removably replacing the mop heads on their support handles.
This not only facilitates periodic cleaning of the mop heads during
use, but permits ready replacement of worn mop heads and permits
use of a common handle and support for many mop heads.
The present invention is directed to a mop head holder or tool for
support and ready replacement of wet-type mop heads, which heads
are of the generaly type construction described in U.S. Pat. No.
2,492,232 and commonly assigned U.S. Pat. application, Ser. No.
36,924, filed May 15, 1970, now U.S. Pat. No. 3,656,207. Such
wet-type mop heads are generally constructed of a plurality of
elongate, generally parallel strings or threads which are attached
at their midpoint by a fabric band or the like. In use the mop is
folded at its midpoint of attachment about a suitable support rod
or bracket on the end of a mop handle. One such bracket supporting
means is described in the above mentioned co-pending patent
application.
It is an object of the present invention to provide an improved
tool for support of a wet-type mop head which securely supports the
mop head during use and permits quick release and replacement of a
used mop head with a fresh mop head with minimum handling of the
mop head during release and replacement.
The above as well as other objects of the present invention will be
better understood and explained from the following detailed
description and by reference to accompanying drawings in which
FIG. 1 is a fragmentary elevation view, with parts in section, of a
wet mop including a handle, mop head, and retaining means for
removably supporting the mop head;
FIG. 2 is a front elevation view of the mop of FIG. 1, with the
retaining means shown in an open position with the mop head removed
therefrom;
FIG. 3 is a sectional view of the rod-shaped retaining member of
the retaining means shown in FIG. 2, taken generally along line
3--3 and looking in the direction of the arrows;
FIG. 4 is a fragmentary front elevation view, with parts in
section, of a form of the mop head retaining means of the present
invention;
FIG. 5 is a fragmentary front elevation view, with parts in
section, of a modified form of the mop head retaining means of the
present invention; and
FIG. 6 is a plan view of the mop tool of FIG. 1 showing the shape
of the trough-shaped clamping means of the mop headretaining
section, with the movable clamping rod of the retaining section
removed for clarity.
Referring more specifically to FIG. 1, the mop head supporting tool
generally comprises an elongate mop handle 10 and mop head
retaining means 12 to which is removably attached a wet-type mop
head 14. Mop handle 10 may be formed of any suitable material such
as wood, metal, plastic, or the like. As shown, the handle is
composed of a hollow aluminum tube 16, the upper end of which is
provided with a suitable cap 18.
Attached to the lower end of the mop handle is the mop head
retaining means 12 formed of suitable material, such as metal or
plastic, and which comprises a stub shaft 20 which is matingly
received in the end of tube 16 and secured thereto by suitable
means, such as a rivet or screw, not shown. Integrally attached to
shaft 20 is a first elongate clamping means shown as an elongate
trough-shaped section 22. Pivotally attached by a sleeve and
cross-pin 24 to one end of the trough-shaped section 22 is second
clamping means comprising an elongate rod-shaped member 25 having a
mop head-engaging section 26 (FIG. 2) and a hand-engageable section
28 which extends up and around tube 16 (FIGS. 2 & 3).
With a mop head supported in the retaining means of the mop tool,
the trough-shaped section 22 and the mop head-engaging section 26
extend generally perpendicular to the axis of the handle 10 to
clamp the midportion of the mop head firmly therebetween (FIG. 1).
To maintain section 26 in mating engagement with trough-shaped
portion 22 and thereby retain the mop head 14 on the mop handle for
use, hand-engageable section 28 is frictionally retained in
position closely adjacent handle 10 (FIG. 1) by a retaining ring 30
which is upwardly slidable on the handle to release hand-engageable
section 28. As can be seen in FIG. 2, when retaining ring 30 is
moved to its upper position, rod-shaped member 25 pivots about pin
24, and the mop head may be readily removed from the open end of
the clamping means. This is accomplished without having to touch
the mop head by releasing the hand-engageable section 28 and
turning the mop tool with the open end of the retaining means
downward to permit the mop head to fall by gravity from the
retaining section.
FIG. 4 shows an embodiment of the mop tool of the present invention
wherein the mop head retaining means comprises a second clamping
means composed of an elongate, mop headengageable, generally
U-shaped rod 32 which is movably attached to the end of handle 34
by a connection section 36.
Connection section 36 comprises a stubshaft 38 the lower end of
which is attached to rod 32. The upper end of shaft 38 extends into
the hollow end of handle 34 and carries a cross-pin 40, the outer
ends of which extend through opposing elongate vertical slots in
handle 34 and mate with an internal annular groove in a rotatable
nut 42 surrounding the lower end of the handle 34. Nut 42 is
threadably secured to a sleeve 44 integral with handle 34 whereby
rotation of the nut 42 moves the mop head-engaging rod 32 into and
out of mating relationship with trough-shaped clamping section 46.
When rod 32 is in its lowermost position shown in full lines of
FIG. 4, a mop head may be readily inserted between the U-shaped
legs of the rod by inserting it through the left hand open end of
the mop head retaining means. Nut 42 is then rotated to the broken
line position indicated in FIG. 4 to raise the rod 32 into mating
engagement with trough-shaped section 46 and thereby firmly grip
and retain the mop head between the rod and trough-shaped section
for use. Replacement of the mop head is readily accomplished by
reversing the procedure described and the mop head may be released
from the retaining means without touching the head by turning the
mop with the open end of the retaining means down so that the head
falls by gravity from the rod 32.
FIG. 5 shows another embodiment of the mop tool of the present
invention wherein the mop head-retaining means comprises a second
clamping means composed of an elongate U-shaped rod 70 the upper
end portion 72 of which is slidably received within the hollow end
of handle 73. Spring 74 is positioned between a fixed collar 76 on
the upper end of rod portion 72 and a movable collar 78 which is
slidably mounted on the rod portion 72 and is attached through an
elongate slot 79 in handle 73 to a hand-engageable toggle lever
80.
The end of toggle lever 80 is pivotally attached to the upper
surface of trough-shaped section 82 and is movable from the full
line position indicated in FIG. 5 wherein the elongate mop head
engaging rod 70 is opened from the trough-shaped section 82 to the
broken line position indicated in FIG. 5 with the rod 70 in mating
relation with the trough-shaped section 82.
Thus, when the rod 70 is positioned as shown in full lines in FIG.
5, the mop head may be placed between the U-shaped leg of the rod
70 through the left hand open end of the clamping means and the
lever raised to the broken line position to firmly secure the mop
head between the rod 70 and the trough-shaped section 82.
In each of the embodiments shown in the drawings, means are
provided for adjusting the gripping force exerted on the mop head
by the clamping means to compensate for various mop head
constructions and for wear of the mop. As seen in FIG. 1, the
hand-engageable section 28 of the pivotal rod-shaped clamping
member extends upwardly inward toward tube 16 such that as
retaining ring 30 is moved further downward on the tube, the mop
head-engaging section 26 will be moved closer to the inside lower
surface of the trough-shaped section 22. Therefore, depending on
the thickness of the mid-portion of the mop head held on section
26, the position of the section can be adjusted to compensate
therefor and ensure positive gripping of the mop head during
use.
In like manner, the position of rod 32 relative to trough-shaped
section 46 in FIG. 4 may be varied by adjusting nut 42 upwardly or
downwardly on the end of handle 34 to compensate for variations in
mop head construction or wear. Also, the biasing force of spring 74
in the construction of FIG. 5 adjustably compensates to accommodate
mop heads of various construction between the rod 70 and
trough-shaped member 82.
From the foregoing detailed description, it can be seen that the
mop tool of the present invention may be readily employed to
removably support various mop head constructions for use, and will
permit ready removal and replacement of the mop heads by the
user.
* * * * *