U.S. patent number 3,828,386 [Application Number 05/269,166] was granted by the patent office on 1974-08-13 for rug care implement.
Invention is credited to Eric Michael Roth.
United States Patent |
3,828,386 |
Roth |
August 13, 1974 |
RUG CARE IMPLEMENT
Abstract
Slides mounted over a slant pile fabric and extending
approximately in the direction of the slanting pile allow use of
such fabric to brush a rug. The fabric, its holder and slides can
form part of an adaptor for a rug rake.
Inventors: |
Roth; Eric Michael (Unionville,
Ontario, CA) |
Family
ID: |
26873945 |
Appl.
No.: |
05/269,166 |
Filed: |
July 5, 1972 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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178082 |
Sep 7, 1971 |
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Current U.S.
Class: |
15/105; 15/142;
15/246; 15/106; 15/176.1 |
Current CPC
Class: |
A47L
13/12 (20130101); A47L 13/38 (20130101) |
Current International
Class: |
A47L
13/10 (20060101); A47L 13/12 (20060101); A47L
13/38 (20060101); A46b 009/02 (); A47l
013/42 () |
Field of
Search: |
;A47/1312
;15/14E,105,106,114,142,186,21R,246,398-400,402,422 ;24/204
;26/27,28,30,31 ;119/88,93 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Blum; Daniel
Attorney, Agent or Firm: Westell; Robert L.
Parent Case Text
This application is a continuation-in-part of application Ser. No.
178,082, filed Sept. 7, 1971, now abandoned.
Claims
I claim:
1. In combination with a rug rake, including a body having: a base
surface, an array of tines projecting therefrom, arranged for
contact with the surface of a rug, manual grasping means for
operating the rake with the tines so contacting the rug:
an adaptor for converting said rug rake into a brush, comprising: a
brush support, a brush surface on one side of said brush support
facing in a predetermined direction therefrom:
means for attaching said brush support to said body with said brush
surface directed to contact a rug,
wherein said brush surface comprises a pile fabric with bristles
projecting from the matrix of said fabric slanting predominately in
one direction, the improvement comprising, at least one slide
mounted to overlie a portion of said brushing surface and arranged
to contact the surface to be brushed, said slide being designed to
extend longitudinally with its major component in the direction of
advance of said bristles.
2. In means as claimed in claim 1 wherein at least two spaced
slides are provided.
3. In means as claimed in claim 1 wherein the said at least one
slide extends parallel to the advanced direction of said
bristles.
4. In means as claimed in claim 2 wherein the said at least two
slides extend substantially parallel to the advanced direction of
said bristles.
5. In means as claimed in claim 1 wherein said at least one slide
is provided with at least one rib projecting therefrom in the rug
contacting direction, and extending along said slide in its
longitudinally extending direction.
6. In means as claimed in claim 2 wherein said two spaced slides
are each provided with at least one rib projecting therefrom in the
rug contacting direction and extending along said slide in its
longitudinally extending direction.
7. In means as claimed in claim 3 wherein said at least one slide
is provided with at least one rib projecting therefrom in the rug
contacting direction, and extending along said slide in its
longitudinally extending direction.
8. In means as claimed in claim 4 wherein said two spaced slides
are each provided with at least one rib projecting therefrom in the
rug contacting direction and extending along said slide in its
longitudinally extending direction.
Description
This invention relates to a device for adapting a rug rake so that
it may be converted to a brush as and when desired, and to means
for rendering a fabric type of brush suitable for brushing or
sweeping rugs.
It is an object of the invention to provide an adaptor for a rug
rake, which adaptor mounts a brushing surface and which adaptor is
detachably attachable to the rug rake.
It is an object of the invention to provide means for adapting a
slant pile fabric, known for use as a brush, to use as a device for
brushing or sweeping rugs.
In the drawings which illustrate a preferred embodiment of the
invention:
FIG. 1 shows a perspective, partially broken away, view of the
invention;
FIG. 2 shows a cross-section along the line 2--2 of FIG. 1;
FIG. 3 shows a partial cross-section along the lines 3--3 of FIG.
1;
FIG. 4 shows a partial cross-section along the lines 4--4 of FIG.
1;
FIG. 5 shows a partial side view along the lines 5--5 of FIG. 1;
and
FIG. 6 shows a bottom view of the adaptor with the rug rake
installed.
In the drawings, the rake comprises a body 10 preferably of flat
longitudinally extending slightly bowed form. An array of tines 12
(here about 33) suitable for raising the fibres on a shag rug, are
provided projecting from one side of the body, in roughly the same
direction, to contact the rug surface. The body member, on the
opposite side from the tines, provides a sloping mount 14 for a
manual operating handle. In the preferred embodiment, the mount 14
contains a threaded socket, not shown, into which the handle may be
screwed to extend at 45.degree. to a floor, when the tines 12 are
in contact with a rug on said floor. As alternatives to the
threaded mount, and within the scope of the invention, other means
of attachment of the handle may be provided, and other manual
grasping means may be provided for manually using the array on a
rug. In the preferred embodiment, the handle mount 14 is a separate
member glued and/or bolted to the body. However, these members may
be made intergral, or separately and capable of being assembled in
a different manner, as desired.
The surface 16 of body member 10 from which the tines extend, is
provided with a pair of an outer and an inner peripheral flange,
defining between them a groove 21 to receive an edge of the adaptor
as hereinafter described. Preferably each time adjacent flange 19
is provided with a fin 23 outwardly sloping from the root of the
tine and dimensioned and contoured to direct the adaptor edge
striking said fin into the groove 21.
The invention is directed to the combination of the rub rake, so
far described, with an adaptor to convert the rake into a brush and
with the provision of slides on the brush extending generally in
the brushing direction to assist in the operation of the
latter.
The body member 10 at a plurality of locations (here four) adacent
said flange 18 is provided with slots 20 immediately adjacent
flanges 19 and approximately parallel to the direction of
longitudinal extension of the adjacent flanges 18 and 19. The four
slots are arranged in opposed pairs, the pairs being preferably
symmetrically disposed on each side of the handle-mount 14. Slots
20 extend through the wall 15 to surface 16.
The adaptor comprises a brush support member 22, preferably of
plastic, shaped to overlie the array of tines 12 and here embodied
as a solid wall or plate and provided with a brush surface on one
side, and having resilient and slightly flexible side walls 24
extending from brush support member 22 in the opposite direction to
that faced by said brush surface.
The edge 25 of said adaptor side walls, remote from said wall, is
shaped to be received in the groove 21 when the adaptor is mounted
on the brush body. The adaptor is also provided with a plurality
(here four) of flat prongs 26 inset from the adaptor sidewalls 24
and located and of a length so that they may be directed through
slots 20 in the rug rake body wall. The flat prongs 26 are,
adjacent their free ends, provided with outwardly directed hook or
shoulder members having shoulders 28 designed to contact the rug
rake body wall 15 on the side thereof remote from the tines, when
the prongs 26 are extending through the slots and in such
arrangement, to hold the adaptor in position with the edge of the
adaptor side walls 24 received in the groove 21.
To attach the adaptor to the rug rake body, the side walls 24 are
slid about the tines 12 and the prongs 26 directed into slots 20.
The outwardly directed fins guide the edge of wall 24 into groove
21. The edge presence in the grooves and the engagement of
shoulders 28 holds the adaptor in place in the rug rake body. This
is assisted by the provision of ribs 23A (FIG. 4) projecting from
the wall 25 of brush body 10 toward the tines 12 and arranged to
frictionally contact adjacent tines 12.
To dismantle the adaptor from the rug rake body the walls 24
thereof and/or prongs 26 are pressed inward to disengage the
shoulders 28 from wall 15 after which the adaptor may be slid away
from the body. Detachably mounted on handle 14 is a small brush, as
shown, which may be used to clean the main brush.
The brush surface is formed from a suitably cut pile fabric 33,
produced by synthetic fibre strings (preferably nylon) woven
through a fabric matrix or backing, preferably cotton, to provide
at the intended front of the fabric, nylon (or other synthetic
fibre) extents between stitch apertures which are double the pile
length required. These extents are then cut to produce the piles
and these are `panned` which involves the application of a heated
surface to the piles in one sense to produce the required slant.
With such `panning` the fibres forming the bristles, slope
predominately in one direction, and the brush is used by brushing
in the direction wherein the bristles so predominately sloped are
advanced, i.e. in which the bristle tips lead the roots. The
advance or brushing direction is to the left in FIG. 2 and to the
left and rearwardly in FIG. 1, as shown by the slope of the
bristles and is, for the assistance of the user indicated by the
arrow 31 in FIG. 1.
Inter alia the bristle pile fabric may be obtained through Collins
and Aikman Corporation, Ca-vel Division, Ca-vel, North Carolina,
U.S.A. 27112.
The pile fabric 33 may be attached to the support 22 in any desired
manner. As shown in FIGS. 2 and 4 the fabric 33 suitably shaped by
spongy or rubber padding 32 may be retained and supported between
outer peripheral flanges 34 extending outwardly from the support 22
and an inner member 36 having outwardly directed and pointed tines
38, shaped to contact the inner surface of flange 34 after piercing
fabric 33 and padding 32 thus retaining the padding 32 and fabric
33 in position.
It is found, in accord with the invention, that the operation of
the brush on the rug requires slides overlying, at spaced
locations, the fabric, for contacting the rug to be brushed with
the slides directed in the desired brushing direction, determined
by the advanced direction of the bristles. It is believed that the
reason is that the slides limit the engagement of the bristles with
the rug to a suitable amount of interference and also guide the
brush, relative to the rug, in the brushing direction.
Slides 35 preferably of 3/16 inch thick plastic, including the
preferably provided ribs 37, are attached over the fabric
preferably at two spaced locations, to contact the rug surface
during brushing. The slides 35 extend longitudinally in their rug
contacting extent in a direction having its major component
parallel to the direction of brushing as directed by the advanced
direction of the bristles and indicated by the arrow. Preferably
such slides extend parallel to the extended brushing direction.
Preferably a plurality (here 4) of ribs 37 project from slide 35
toward the intended rug position and are directed in the direction
of longitudinally extending slides 35, to be preferably parallel to
the brushing direction and to guide the direction of the rug rake
in such direction. The ribs 37 are preferably downwardly
pointed.
The slides 35 are mounted on the body 22 in any desired manner,
such as by gluing or clamping and are dimensioned to compress the
spongy material 32 under the fabric which they overlie.
* * * * *