|Publication number||US2495846 A|
|Publication date||Jan 31, 1950|
|Filing date||Feb 5, 1945|
|Priority date||Feb 5, 1945|
|Publication number||US 2495846 A, US 2495846A, US-A-2495846, US2495846 A, US2495846A|
|Inventors||Johnson John M|
|Original Assignee||Johnson John M|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (17), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Jan. 31, 1950 J. M. JOHNSON 2,495,845
COMBINED MOP AND WRINGER HEAD Filed Feb. 5, 1945 3 Sheets-Sheet 1 J. M. JOHNSON COMBI NED MOP AND WRINGER HEAD .Jan'. 31, 1950 3 Sheets-Sheet 2 Filed Feb. 5, 1945 Jan!o 31, 1959 J JOHNSON 2,495,846
' COMBINED MOP AND WRINGER HEAD Filed Feb. 5, 1945 s sheets-sheet s Patented Jan. 31, 1950 UNITED STATES PATENT OFFICE COMBINED MOP AND WRINGER HEAD John M. .lohnson, Sa'co, Maine Application February 5, 1945, Serial No. 576,331
This invention relates to household equipment of the type comprising a mop and ahandle structure to which the mop proper is secured.
The invention aims to improve structures of this type with a View to reducing the labor involved in using them, more especially that in connection with the wringing operation. While it has-been proposed heretofore to accomplish this object by devising a construction in which the wringing operation can be performed by relatively rotating elements of the handle structure and thereby twisting the mop without taking it in the hands, none of these prior constructions, so far as I have been able to learn, has proved practical. At the same time it is obvious that the work of the housewife or the maid could be reduced very materially by a thoroughly satisfactory appliance of this character. To devise such a piece of apparatus which, in addition, will be simple in construction, economical to manufacture, and not liable to get out of order, constitutes the chief object of this invention.
The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.
In the drawings, 7
Figs. 1', 2 and 3 are side views of a mop embodying this invention and illustrating different steps in the operation of using it; Fig. 4 is a longitudinal, sectional view of the mop structure shown in Fig. 1; v
Fig. 5 is a s milar view on a larger scale of a short section of the construction shown in Fig. 4, the portion illustrated being that in which a friction element, later to be described, is included; Figs 6 and 7 are sectional views on. the line 6-6 and 7-1, respectively, of Fig. 5;
Fig. 8 is a similar View on the line 5 8, Fig. 4; Fig. 9 is a plan view of a novel form of mop; Figs. 10 and 1. are side and front views, respectively, of another form of mop adapted for use with the handle structure shown in Figs. 1 to 3;
lg. 12 is a side elevation showing a modified form of the lower end construction for the mop which may be used in place of thatshown at the lower end of the tubular handle in Figs. 1, 2 and 3;
Fig. 13 is a longitudinal, sectional view on the line Iii-l3, Fig. 12; and
Fig. 14 is a transverse, sectional view on the line MM, Fig. 13.
Referring first to Figs. 1 and 4, the construction there illustrated comprises a tubular handle 2 and a plunger, telescoped in and substantially enclosed within said handle. The plunger comprises a tube 3 and a rod 4, the latter being telescoped within the former. These members 3 and 4 are slidable, both bodily and in unison, or independently, inside the handle 2, but they are connected together by a friction device comprisinga split sleeve 5, fitting tightly within the tube and a solid or plug section 6 rigid with the sleeve 5. The upper end of the rod 4 is secured to this friction device as by a pin 1, Figs. 5 and '1, and the split in the sleeve 5 is made Wide enough to take the internal seam, spline or bead 8 which runs lengthwise of the tube a and is rigid with it, so that the rod 3 and the tube 3, while being slidably connected together, cannot have any relative rotative movement. I
At the upper end of the plunger a grip it is secured to the tube 3 by a pin ihFig. 4, and the lower end of this member and the upper end of the tube 2 have a short telescoping connection with each other, as shown in Fig. 4. Preferably, also, another grip i2 is fastened rigidly on the tubular handle 2.
Secured to the lower end of the handle 2 by short screws i5 is a clamp comprising an elongated T-shaped head i3, Fig. 1, provided with an integral bushing Hi, bestshown in Fig. 4, in to which the screws are threaded. Two U-shaped side plates iii-46 cooperate with the head it to clamp the upper ends of the mopfabric in place. For this purpose screws illl extend entirely through the head and are equipped with thumb nuts or wing nuts H by means of which the clamp may be tightened up to lock one end of the. fabric of the mop securely against slipping. Also at. the lower end of the mop, the rod 4 is shaped as shown at i in Fig. 4 to provide a T-shaped head portion which is adapted to be fastened to the other end of the mop fabric. It should be observed that the bushing 14 forms a bearing for the rod 4 in which the latter both slides and rotates at certain times in the use of the device. As best shown in Figs. 1, 2 and 3, the head of the plunger is provided with oppositely extending narrow flanges having parallel edges over whichthe mo fabric is initially drawn when the clamping plates !El5 are loosened. Then, when the Wing nuts are tightened up, the plates lEil6 cooperate with the flanges just mentioned to clamp the upper ends of the mop fabric very securely to the head of the device.
While various forms of mops may be used with this construction, the preferred form has some such shape as that shown at 20 in Fig. 9. It may be made of any suitable absorbent fabric, such as a coarsely fabricated cotton material, preferably with the ends bound, as indicated at 2 l-2 I. Also, a short section of fabric 22 is stitched at its opposite transverse edges to the middle of the mop so as to form a loop at this point between the fabrics 28 and 22 through which the outer section of the plunger head 4' can be inserted, as shown in Fig. l. Assuming that the device has been assembled in this manner, the mop fabric will be disposed in a double loop formation, substantially as illustrated in Figs. 1 and 2.
Normally the device is as shown in Fig. lwith the grip l9 slightly telescoped upon the upper end of the tubular handle 2. When it is desired to wring the mop, the tubular section 3 'of the plunger is first pulled upwardly by means of handle in until the extension of the handle structure produced in this manner is substantially arrested by the short fingers 3, Figs. 4 and 8, which project inwardly from the lower end of the tube 3. During this operation the rod 4 does not move, but the tube 3 slides up on it, against the resistance offered by the friction device 5-E, until stopped by the engagement of said fingers with the end of the tubular section 5 of the plug 6. Next the operator grasps the grip l2 and forces the entire plunger downward through the handle 2. At this time the rod 4 moves down with tube 3 until the grip l0 strikes the upper end of the tube 2, as shown in Fig. 3. This movement stretches the mop 20 to its limit. Then by grasping the grips I2 and Ill and revolving the latter with one hand, while holding the tubular handle 2 against rotation with the other grip 12, the mop is twisted up into some such form as that shown in Fig. 3. This wrings it, after which it can be untwisted by a reversal of the operations just described. Then by resting the head 4' of the plunger on the floor and pushing downward on the grip In, the entire rod 4 can be forced back into its normal position inside the handle, as shown in Fig. 4. The mop then is ready to be used again.
It will be evident, however, that these operations are easily performed without much effort. Also, that the entire construction is compact, is sturdy and substantial, and is not liable to get out of order.
If the housewife, or other user of this appliance, prefers to fold the mop fabric in the manner shown at Zllin Figs. and 11, then the mop may be provided with apertures 23 for the passage of the rod 4 therethrough, whether the fold is made entirely at the left-hand side of the rod, as shown in Fig. 10, or at the opposite side. Preferably these apertures are bound to prevent ravelling.
A modification of the construction at the lower end of the handle, which has some advantages over that above described, is illustrated in Figs. 12, 13 and 14, in which the parts corresponding to those shown in Figs. 1 to 10 are indicated by the same, but primed, numerals. Here the bushing i4 is replaced by one having a box-like sheet metal head 24 made integral with it, or secured rigidly thereto. The plunger 4' slides through a sleeve l9 rotatable in said bushing and is provided with a head 4" ofiset laterally with reference to the plunger head, and the central portion of the mop is looped over this head, as in the construction previously described. In the head is a plate 25 having a down-turned edge, as best shown in Fig. 13, and this plate cooperates with a bottom plate 26 having an up-turned edge,
opposed to that of the plate 25, to grip the lapped free ends of the mop between them. Two bolts 2'i-21 passing through all of these plates and through the top plate of the head 24 are equipped with thumb nuts 2828 by means of which the plate 26 may be drawn upwardly to clamp the mop. When the nuts 2828 are revolved to loosen the grip of the plates on the mop, they are forced apart by a spring 30, Fig. 13, interposed between the plates.
Mounted between the upper plate 25 and the top plate of the housing 24, is a ratchet wheel 3 I fitting snugly, but slidably, on the rod 4 which, in this case, is made of square, cross-sectional form. A pawl 32, Fig. 14, integral with a pawl plate 33, is arranged to engage the teeth of the ratchet wheel 3|, and a spring 35, Fig. 14, is connected with the plate 33 to hold the pawl normally in its operative relationship to the ratchet wheel. A bolt 36 passes through the spring 35 and supports the plate 33 for pivotal movement from its operative position, as shown in Fig. 12, into the dotted line position there illustrated, where the pawl 32 is moved out of engagement with the ratchet 3|. Formed on the plate 33 is a finger grip 31' for convenience in swinging it.
The mop, as modified in accordance with Figs. 12 to 14, is operated in exactly the manner above described, but during the rotation of the handle l0 and the plunger rod 4' to wring the mop, the ratchet wheel revolves in a clockwise direction, Fig. 14, with the handle and therefore prevents any reverse rotation of the plunger during this operation. At the conclusion of the wringing step the pawl plate 33 is swung into the dotted line position shown in Fig. 12, thus releasing the plunger from the control of the pawl and permitting the operator to turn the handle in a counter-clockwise direction sufficiently to straighten out the mop. Then the handle is withdrawn to return the mop to its initial position, the pawl plate 33 is swung back into its full line position, Fig. 12, and the lower end of the mop assembly is rested on the floor while the handle is pushed down into its normal position.
This arrangement eliminates much of the need for the second grip I2, Figs. 1 to 3, on the tubular handle 2.
While I have herein shown and described preferred embodiments of my invention, it will be evident that the invention may be embodied in other forms without departing from the spirit or scope thereof.
Having thus described my invention, what I desire to claim as new is:
1. In a mop structure, the combination of a tubular handle, a plunger slidably mounted in said handle, a member on each lower end portion, respectively, of said tubular handle and said plunger cooperating to support a mop; said plunger including upper and lower members having a telescoping connection with each other and a friction connection between them strongly resisting, but permitting, telescoping action; said members being slidable in unison and also independently inside said tubular handle and being connected together inside said tubular handle to prevent rotative movement of one relatively to the other, whereby said plunger may be extended to elongate the mop for wringing and contracted to return the entire assembly to its normal length, the plunger being supported in said tubular handle for rotative movement relatively thereto to wring the mop.
2. In a, mop structure according to preceding claim 1., a construction including a grip on the upper end of said plunger, said grip having a telescoping connection with said tubular handle.
3. In a mop structure, the combination of a tubular handle, a plunger slidably mounted in said handle, a member on each lower end portion, respectively, of said tubular handle and said plunger and cooperating to support a mop; said plunger including a tube slidable in said tubular handle, a rod slidable in said tube, and a friction connection between said rod and tube strongly resisting, but permitting, relative slidable movement of said tube and rod; whereby the plunger is extensible to elongate the mop for wringing and is contractible to return the entire structure again to normal length, said plunger being rotatable in said tubular handle to wring the mop, and means inside said tubular handle for holding said rod and the tube telescoping therewith against any substantial relative rotative movement.
4. In a mop structure according to preceding claim 1, a construction including a pawl and ratchet mechanism operable normally to prevent reverse rotation of said lower telescoping member during the wringing operation, the latter member being slidable longitudinally through said mechanism but connected therewith to ro tate the ratchet wheel.
5. In a mop structure according to preceding claim 3, a construction including a ratchet wheel through which said rod extends slidably but which is connected with the rod to be rotated thereby, a pawl operatively connected with said wheel to prevent its rotation in one direction, and means for supporting said pawl for adjustment into and out of its operative relationship to said wheel.
6. In a mop structure, the combination of a tubular handle, a plunger slidably mounted in said handle, a member on each lower end portion, respectively, of said tubular handle and said plunger and cooperating to support a mop; said plunger including a tube slidable in said tubular handle, a rod slidable in said tube, and a friction connection between said rod and tube strongly resisting, but permitting. relative slidable movement of said tube and rod; said friction connection including a plug secured to the upper end of said rod and slidable in said tube, said tube having parts at its iower end cooperating with said plug to limit the degree of extension of the telescoping members, a grip secured to the upper end of said tube, and a splined connection between said plug and said tube preventing relative rotation of the rod and said tube.
JOHN M. JOHNSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 335,005 Wilson Jan. 26, 1886 856,238 Fraser June 11, 1907 1,083,656 Bodin Jan. 6, 1914 1,567,519 Leclerc et a1. Dec. 29, 1925 1,559,783 Nonamaker Sept. 14, 1926 1,684,460 Thompson Sept. 18, 1928 1,710,190 Regan Apr. 23, 1929 1,724,308 Phipps Aug. 13,, 1929 2,059,772 Buell Nov. 3, 1936 2,102,319 Huber Dec. 14, 1937
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|US7926142||Jun 1, 2007||Apr 19, 2011||The Libman Company||Twist mop with retaining clip|
|US20070072460 *||Oct 13, 2006||Mar 29, 2007||Ragnar Stahle||Device for relative fixing of elements telescopically displaced in each other|
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|International Classification||A47L13/142, A47L13/10|