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Патент USA US3065492

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United States Patent O?hce
Patented Nov. 27, 1962
through in a direction parallel to the side walls. Each slot
34 is spaced from an end of the rear wall 27 so as not
to be obstructed by lip 30 on side wall 24. A hole 36
Ronald E. Bottler, Gsalra, Japan
passes longitudinally from one end of rear wall 27 to the
(723% NE. Tiliamook, Portland 13, Greg.)
other end and intercepts slots 34. A second pair of slots
Filed May 4, 1961, Ser. No. 107,694
38 extend upwardly from hole 36 to the upper surface of
Claims priority, application Japan Juiy 13, 1960
the wall. L.-shaped pins 56 to be hereinafter described
3 tClaims. (Cl. 15—203)
are horizontally slidable in holes 36 and slots 38.
The bristle support plates 10 are actuated by a pair of
This invention relates to folding hairbrushes and in
particular relates to the mounting of rotatable, elongated 10 parallel slide bars 41} each of which is an elongated rela
tively thin member having a front portion 48, a rear por
bristle tufts for folding movement between a raised oper
tion 50 which is off-set downwardly from the front portion
ative position and a folded compact position within a case
and an angled center portion 49 which joins the front
and to a latch for maintaining the bristle tufts in a raised
and rear portions. Each slide bar 40 is spaced from the
It is an object of the invention to provide a folding brush 15 inner surface of a side wall 24 of the casing 22 and is
which utilizes long bristles and which is compact when
movable along the inner edge of lip 34} in a plane parallel
to the side wall 24. The rear portions 50‘ of the bars are
passed through slots 34 in rear wall 27 of the casing and
It is a further object of this invention to provide a fold
are rigidly joined to each other at their ends outside the
ing mechanism for rotatable bristle tufts in a case which
20 casing by a cross-piece 52. The forward end of the front
is positive and e?icient in its action.
portion 43 of each bar has a downwardly projecting lip
An embodiment of the brush of the invention is illus
46 which engages with the inner surface of front wall 26
trated in the following drawings in which:
of the casing when the bar is in a forward position. A
H6. 1 is a top plan view of the brush showing the
bristles in upright position.
row of spaced protrusions 42 project downwardly from
FIGURE 2 is a vertical sectional view through the brush 25 the front portion 48 and the inner surface of each pro
trusion 42 is provided with a hole 44 in which an upper
of the invention along the line 2—2 of FIG. 1 showing the
trunnion 18 of one of the plates 10 rides. Each rear por
bristles in upright position.
tion also has a hole 54 therethrough which is in the same
FIG. 3 is a vertical sectional view taken on line 3—3
horizontal plane as holes 44 and which aligns with hole
of FIG. 1.
FIG. 4 is a top plan view of the brush showing the 30 36 in rear wall 27 of the casing when the bars 40 are in
a forward position.
bristles in a collapsed position.
The latch mechanism for holding the bars in a for
FIG. 5 is a vertical sectional view through the brush
ward position consists of pins 56 which are slidably re
along the line 5—5 of FIG. 4 showing the bristles in a
tained in hole 36 in rear wall 27. Each pin 56 is L
collapsed position.
FIG. 6 is a vertical sectional view along line 6-6 of 35 shaped and one leg thereof extends through and is slid
able horizontally in one of the slots 38. As seen in FIG
FIG. 1.
URES 3 and 6, when bars 46 are fully inserted into the
FIG. 7 is a schematic end elevational view of the brush
casing 22, pins 56 can be extended to pass through slots
in its case.
The brush illustrated in the drawings comprises a casing
34 and holes 54 in rear portion 50 of bars 40. As seen in
22 in which are rotatably mounted a plurality of bristle 40 FIGURE 4, when pins 56 are retracted they are clear of
support plates 10. Each support plate It} has a plurality
slots 34. The top of each projecting leg of pin 56 is
of spaced semicylindrical protrusions 12 extending from
threaded and provided Wtih a nut 60‘ which can be screwed
down to hold the pin 56 in either an extended or retracted
one side thereof, and a tuft 14 of bristles is set into the
top of each protrusion 12. The spaces between the pro
trusions form recesses 13, and the protrusions on each
The operation of the brush is readily apparent from
plate are off-set, or staggered, with respect to the protru
the above description. Bristle support plates 10‘ are ro
sions on adjacent plates so that the protrusions on one
tatable on lower trunnions 20 between the upright posi
plate are opposite the recesses on adjacent plates. Each
tion of FIGURES l and 2 and the folded position of FIG
end of each plate 10 has integrally formed therewith a
URES 2 and 4. Slide bars 46 when moved in or out of
relatively long lower trunnion 20 which is journaled in a
the casing by hand cause the plates 10 to pivot by the
side of the casing and a shorter upper trunnion 18 which
force exerted on upper trunnions 18. To place the bristles
in position for brushing, crosspiece 52 is pressed forward
is journaled in a slide bar 40 to be described later.
The brush casing 22 is an open-topped box formed of
a front wall 26, a rear wall 27 and a bottom wall 28 which
ly with the hand so as to insert bars 40 fully into the cas
ing thus causing bristle support plates 10 to rotate to a
are integral with each other. A pair of parallel side walls
vertical position within the casing. In this position of
24 are fastened to the sides of the integral front, rear and
bottom walls. A lip 30 integral with each side wall 24
the plates 10, lip 46 on the front end of slide bars 49
?rmly abuts against front wall 26 of the casing and pre
vents further movement of the slide bars into the casing.
The slide bars may then be latched against movement out
projects inwardly from the top of each side wall 24. A
cover 23 (FIGURE 7) having side walls which are com
plementary to the outer surface of side walls 24 can be
slid over the open top of casing 22 when the brush is not
in use. The inner surface of each side wall 24 is pro
vided near the bottom thereof with a row of holes 32 which
of the casing by extending the pins 56 through the holes
54 in the slide bars and tightening the nuts 6%. As seen
in FIGURES 2 and 6 the top of the front portion 48 of
the slide bars is then ?ush with the top of the casing and
receive lower trunnions 2t} of support plates 10. The
65 the cross-piece 52 lightly engages the front wall 26 of the
distance between holes 32 in each row is slightly greater
casing. To fold the brush, the slide bars 43 are pulled
than the distance between the upper and lower trunnions
rearwardly until the plates It} have rotated to the position
on each plate It}. Therefore, when plates 10 are in the
of FIGURES 4 and 5. During this movement the bars
folded position as shown in FIGURE 4, the top of one
also move downwardly in the slots 34 toward the bot
plate is closely adjacent but does not touch the bottom of
70 tom wall 23 of the casing. When the protrusions 42 on
the next plate.
the bars 40 engage the bottom wall 28, the plates id have
Referring to FIGURE 3, it is seen that rear wall 27 is
reached their folded position and the bristle tufts of each
provided with a pair of vertical slots 34 passing there
plate 10 rest in the recesses 13 of the adjacent plate 1% as
seen in IFIGURES 4 and 5. As seen schematically in
horizontally from the ends of each support means said
upper trunnion means being journaled in holes in said slid
able members and said lower trunnions being journaled in
holes in the inner surfaces of said side walls whereby
when said slidable members are fully inserted into said
FIGURE 7, the cover 23 can now be slipped over the
open top of the casing to protect the inner parts from dirt
and injury.
The hairbrush as described above is compact and posi
tive acting. The provision of staggered bristle tufts per
mits the use of long bristles in a compact brush because
in the folded position the bristle tufts ?t into the recesses
13 between'the bristle tufts of an adjacent support plate.
The rotation of the bristle support plates between erect
casing said bristle support means are rotated to a posi
tion in which the bristles project upwardly and whereby
when said slidable members are withdrawn from said cas
ing said bristle support means are rotated to a position
in which the bristles are collapsed into the casing and
into the spaces between the bristle holding protrusions
and collapsed position is positively controlled by two
on an adjacent support means; each of said slidable mem
rigid slide bars each of which engage each plate and
each of which is ?rmly held in the forward position by
abutment with the casing at one end, by a latch at the
bers being provided with a hole which registers with the
longitudinal hole in said rear wall of the casing when
said bars are fully inserted into said casing whereby one
leg of each of said L-shaped members may he slid through
said hole in said slidable member.
2. A folding brush comprising: an open-topped case
having a front wall, a bottom wall, two parallel side walls
and a rear wall; a plurality of parallel, elongated bristle
support plates within said case and normal to said side
other end, and along its outer side by the lip
abutment with the casing also accurately determines the
extend to which the bars move into the casing and
thereby accurately positions the bristle support plates in
their upright position. The trunnions may be formed in
tegrally with the support plates thus precluding the addi
tional assembly steps of inserting four pins in each sup
port plate. The casing may be assembled from two side
walls and an integrally formed front, bot-tom and rear
It is to be understood that the invention is not limited
to the precise embodiment described above and that minor
modi?cations may be made within the scope of the in
Whta is claimed is:
1. A folding brush comprising: an open-top case hav
ing a front wall, a bottom wall, two generally parallel side
walls and a rear wall; said rear wall having ?rst and sec
ond vertical slots therethrough, a longitudinal hole ex
tending inwardly from each end of said rear wall through
walls, each said plate having (1) a plurality of parallel
spaced bristle tufts extending therefrom in a common
plane, (2) recesses between said bristle tufts, the bristle
tufts on one support plate being staggered with respect to
the bristle tufts on adjacent support plates, (3) an upper
trunnion and a lower trunnion extending from each end
thereof; means ?xed with respect to said side walls for
journalling said lower trunnions whereby said support
plates are rotatable toward and away from said front and
rear walls; a pair of spaced elongated bars parallel to said
side walls and slidable within said case toward and away
from said front and rear walls, said bars ?rmly abutting
said front wall in one position and having spaced holes
therein retaining said upper trunnions, said holes being
a diiferent one of said ?rst and second slots, and third
so located that when said bars are in said one position
and fourth vertical slots extending upwardly from the
inner portion of said longitudinal holes to the top of
said bristle tufts extend normal to said bottom wall; slid~
able operating means associated with the rear ends of
said bars and extending exteriorly of said case for manu
ally sliding said bars toward and away from said front
said rear wall; an elongated slidable member adjacent the
upper inner surface of each side wall, the rear end of
each member projecting through a diiferent one of said
?rst and second slots and the front end of each member
and rear walls, said operating means having a latch re
ceiving cavity therein; and a latch member slidably re
tained within a cavity in said case and movable into said
abutting‘ the inner surface of said front wall; means join-v
ing the rear ends of said members outside said rear wall; 45 latch receiving cavity when said operating means has
placed said bars in said one position.
an L-shaped member having one leg slidable in each of
3. A folding hairbrush as in claim 2 wherein said bars
said longitudinal holes and the other leg projecting up
extend through said rear wall and wherein said latch
wardly through the slot which connects the hole with the
member comprises a pin within said rear wall and mov
top of said rear wall; means engaging the upwardly pro
jecting legs and adapted to fasten said L~shaped members . able into a cavity in one of said bars.
against sliding movement in said longitudinal’ holes; a plu
rality of elongated rotatable bristle support means paral
lel to said front and rear walls and positioned between
said slidable members; spaced bristle holding protrusions
on each of said support means, the protrusions on each
of said support means being offset from the protrusions
on adjacent plates; a tuft of bristles projecting from each
protrusion; upper and lower trunnion means extending
References Cited in the ?le of this patent
Stehlin _______________ __ Nov. 10, 1885
Weir ________________ __ Mar. 21, 1905
Bridges _____ __'_ _______ __ July 16, 1918
Meyers _______________ __ Aug. 4, 194-2
Davis _.__:__,______,_______‘_ Oct. 10, 1950.
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