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Патент USA US2114116

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April 12, 1938.
D. G. SMELLIE
2,114,116
SUCTION CLEANER
' Filed June 25, 1934
2 Sheets-Sheet 1
1
Donald 6! Jim/11v
{9-2,
.
BY
‘
ZZZ-32am
April 12, 1938;.
2,114,116
D. G. SMELLIE
SUCTION ‘CLEANER
2 Sheets-Sheet 2
Filed June 25, 1934
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1:
ATTO RNEY
Patented Apr. 12, 1938
2,114,116
UNITED A STATES
‘PATENT OFFICE '
2,114,116
SUCTION CLEANER
Donald G. Smellie, Canton, Ohio, assignor to
The Hoover Company, North Canton, Ohio, a
corporation of Ohio
2
Application June 25, 1934, Serial No. 732,217
19 Claims.
(01. 15-13)
.
The present invention relates to suction clean
the fan chamber 3. To the exhaust outlet 4 from
ers in general, and particularly to new and novel ' the fan chamber 3 is removably connected a dust
meansvfor driving the agitator of the suction
cleaner.
More speci?cally the invention com
bag 5 by securing means 6. An unshown driving
motor is positioned within the motor casing 1
5 prises a new agitator-driving mechanism which
immediately over the fan chamber 3 and the.
converts the rotating force of the motor into an
motor shaft 8 extends downwardly through the
fan chamber 3, where it carries the rotating fan
arcuate rotary movement of the surface-contact
ing agitator.
'
9 into the air passageway 2 where it is provided
with a pulley Ill.vv The cleaner is movably sup
ported by spaced front and rear wheels H, H and 10
I2, l2 and, as in the usual cleaner construction,
a pivoted cleaner handle_;l3 is provided by which
It is an object of the present invention to pro
10 vide a new and‘ improved suction cleaner. It isv
another object of the invention to provide new
and improved agitator-driving means in a suc
tion ‘cleaner. A further object is the provision of
the operator can exert a propelling force upon
power transmission means in a suction cleaner
the machine and down which the incoming power
which convert the rotating driving torque of the
leads M, II extend.
cleaner motor into a reciprocating action in the
surface-contacting agitator. A still further ob
ject is the provision of power-converting means
in the cleaner nozzle which transforms the force
face~contacting-agitator means are provided
which supplement the cleaning action of the mov
ing air. The agitator, indicated by the reference
20 transmitted by the driving belt from the cleaner
character l5, extends across the nozzle for its
motor into a pivotal movement of the surface
contacting agitator about an axis parallel to the
surface undergoing cleaning. These and other
morev speci?c objects will appear upon reading
the following speci?cation and claims and upon
considering in connection therewith the attached
drawings to which they relate.
Referring now to the drawings in which pre
entire length and is provided with two spaced
surface-contacting agitating elements I6, I 6.
ferred embodiments of the present invention are
disclosed:
Figure 1 is a side elevation of a suction cleaner
embodying the present invention with certain
parts broken away and shown in section;
Figure 2 is an enlarged section through the
power-transmitting means in the nozzle, being
a view similar to the nozzle section of Figure 1;
Figure 3 is a partial longitudinal section
through the agitator being taken upon the line
3-3 of Figure 4;
‘
Figure 4 is a partial bottom view of the cleaner
nozzle;
Figure 5 discloses a modi?ed part of the power
transmission means;
Figure 6 is a section upon the line 6—6 of
Figure 5;
_
I
Figure 7 is a view similar to Figure 5 showing
a third preferred modi?cation;
Figure 8 is a section upon the line 8-8 of
O
Figure '7.
Referring to Figure 1 in particular, a modern
suction cleaner embodying an agitator and agi
tator-driving means constructed in accordance
with the presentv invention is ,disclosed. The
cleaner is seen to_comprise a nozzle l which is
5 interiorly connected by an air passageway 2 to.
15
As in the usual e?icient suction cleaner sur
Agitator I5 is pivotally mounted at its ends upon
bearings l1, l1 carried in the side arms of the
frame l8 which is itself pivotally mounted on pins
19, i9 in the rear of the nozzle mouth. Frame I8 is 25
secured in position relative to the-nozzle, as shown
in full lines in Figures 1 and 2, by means of a
pivoted latch of a well known type indicated gen
erally by the reference character 20. Front and 30
rear nozzle lips 2| and 22 which de?ne the nozzle
mouth are formed on this frame I 8 which is itself
sealed to the casing proper by a continuous seal
23 which encircles the nozzle mouth in position
to contact the frame. The frame i8 is adapted 35
to be pivoted from the nozzle 1 to the dotted line
position shownv in Figure 1 to make possible the
change or repair of any parts in the nozzle.
Positioned substantially centrally of the nozzle .
I is a counterbored seat 25 which is normally 40
covered at the surface of nozzle l by a removable
cap 26. Within seat 25 are positioned two spaced
bearings 21 and 28, the outer races of which are
carried in rubber rings 29, 29. A,» pulley 30 is
rotatively carried by'bearings 21 and 28 being
provided with an upstanding vertical shaft 3|
which seats within the inner races of the bearings.
45
A screw-retained shoulder 32 rests upon the upper
bearing 21 to supporttthe pulley, the presence of
a spacing ring 33 between the two inner races 50
insuring that the lower bearing 28 bears its share
of the load.
Bearings 21 and 28 are protected from foreign
matter suspended in the air passing through the
nozzle I by a labyrinth formed by the peripheral 55
2
flange 34 on the pulley which extends into a in no movementof the agitator but instead only in
circular groove 35 around the bearing seat 25. the pivoting of member 49 about pin 52. The
A seal 36 carried by the upper face of pulley 3t components‘of movement of gyrator 40 which are
in'contact with the outer race of bearing 28 co » perpendicular to the longitudinal axis of the agi
operates with the labyrinth to make it practically tator, however, result in the pivotal movement
impossible for foreign matter to reach the’ two of the agitator about its supporting axis, and
bearings.
I
'
the effect is a high speed reciprocation of the ~
‘
Pulley 30 is formed with a peripheral groove
[adapted to receive the driving belt 3'! which ex
tends back through the air passageway to the
driving pulley ill on the motor shaft. In opera-_
tion of the machine, obviously, pulley 30 is ro
tated by the belt 31 at a speed which is deter
mined by<the ratio of its own diameter to the
15 diameter of pulley ill. To transform the rota
tion of pulley 30 into a reciprocating motion for
agitator i5 a gyrator member 40 is provided
which comprises an open-bottomed body and a
short shaft 4!. Shaft M is eccentrically mounted
20. in pulley 30 by gmeans of a bearing 42. Within
the downwardly facing body of gyrator 40 is fric
tionally retained a resilient rubber member or
disk 43 which is formed with a cutout portion 44
in its top center immediately below shaft 4i.
Rotation of disk 43 in g'yrator 40 is prevented
rigid beater elements I6, IS in an arcuate path
to beat and dislodge foreign matter from the
surface‘ covering. The disk 43 which carries 10
the member 49 is made of a resilient matter, and,
being provided with the recess 44 immediately
above member 50 is adapted to give and become
distorted to permit the necessary pivoting of
member 49 to accomplish the results described. 15
Referring now to Figures 5 and 6 in particular,
a second preferred type of connection between
the agitator i5 and gyrator 40 is disclosed. In
this embodiment the hexagonal-headed member
49 which was embedded in the disk 43 in the first 20
embodiment has been omitted and instead a me
tallic seat member 55 has been provided in disk
43 which is adapted to receive and seat a ball
headed power-transmittingmember 56 which is
carried by the pin 52 of the agitator, being piv 25
otally mounted thereon by a bearing 51. The op
' by studs 45,, of which there may be a number,
which extend downwardly from the top face of ‘ eration of this embodiment is similar to that
gyrator 40 into corresponding recesses 4B._ A
retaining cap 4‘! is pressed over the outside of
gyrator 40 and underlies-disk 43 to retain it in
place.
I
.
Imbedded in disk 43 and extending downward
ly from the center thereof is a hexagonal headed
35
power-transmitting member 49K. which extends
downwardly through opening 5| in agitator
l5 and in the block'SIl which ?lls the body at
that point. Member 49 is‘ forked at its lower
end and straddles a transverse pin 52 carried by
the block 50.
The seat or opening 5| in the
agitator body is su?iciently wide, in the direction
of the length of‘ the agitator, to permit free
pivotal movement of‘ member 49 about pin 52 in
that direction. Any movement of the driving
member 49 in a direction having a component
45 perpendicular to the axis of the agitator, how
ever, results in the pivotal movement of the agi
tator about its supporting bearings H, H.
The operation (if the cleaner constructed in ac
cordance with the present, invention is quite sim
50 ple. The rotation of the driving motor causes
?rst described except that the member 56 rolls
in its metallic seat in the member 43 instead
of distorting that member, as in the ?rst em
30
bodiment. Inthis modi?cation in the pivoting of
the frame i8 from the nozzle thepower-trans
mitting member 56 will be carried by the agitator
whereas in the first embodiment the member 49
35
remained as a part of the disk 43.
Referring now to Figures 7 and 8 in particular
a third variation of the invention is disclosed
in which the power-transmitting means are
identical with those shown in Figures 5 and 6
but one of the beater elements 16 has been re
40
placed by a surface-contacting brush “5a which
is removably positioned within its seat on the
agitator body IS. The operation of this embodi
ment of the invention is identical with those
afor€described with the exception that a brush 45
ing action is provided to supplement the beating
action of the rigid element l6 which is positioned
diametrically opposite on the agitator.
1. In a suction cleaner, a rotating driving 50
the suction-creating fan 9 to create a reduced member, a power-transmitting member, a rotat
pressure which is effective to draw cleaning air ing driven member, a member eccentrically car
through the nozzle i, the air passageway 2, the . riedrby said driven member, said member being
rotatively mounted in the ‘driven member and
fan chamber 3 and exhaust it by way of the
being non-rotatable about its own axis, a surface 55
55 exhaust outlet '4 into the dust bag 5. -The re
duced pressure created within the nozzle 8 lifts ' contacting agitatorpivoted for movement about
65
the surface covering undergoing cleaning into ' an axis at an angle to the axis of said driven
member, means mounted for ‘pivotal movement
contact with the nozzle lips 25 and 22 and into a
only on said agitator to reciprocate said agitator
position in which it is contacted by the clean
ing elements i6, i6 ofv the agitator l5. Asthe as said eccentric member revolves about the 60
driving pulley l0 is‘rigidly carried by the motor center of rotation ofgsaid driven member and
means mounting said last-mentioned means for
shaft 8 its rotation causes the pulley 30 in the
nozzle 1 to be rotated by the belt 31. Pulley 30 limited universal movement on said eccentric
rotates freely in its supporting‘ bearings 27! and member.‘
2. In a suction cleaner, a surface-contacting 65
28 and causes the vertical shaft M of the gyrator
48 to be carried in a circular path about the
center of rotation of the pulley. Gyrator 48 does
not rotate, the shaft 4i being rotatively mount
ed in bearing 42 in the pulley, and as it moves it
70 carries with it the hexagonal-headed power
transmitting member 49. which is connected, as
before described, to the agitator i5 through ex
tending therein and straddling the pin 52. The
components of movement of gyrator 40 which are
75 in the direction of the length of- the agitator result
agitator, means mounting said agitator for arcu
ate rotary movement about a horizontal axis, a
rigid member mounted to move with said agi
tator about its axis and to pivot independently
about an axis at right angles thereto,'means to 70
move the end of said rigid member spaced from
said agitator in an orbit having components of'
direction perpendicular to the axis of said agi
tator, said last mentioned means comprising a
resilient body-in which the end of said rigid 76
2,! 14,1 16
member seats, rotating means eccentrically car
rying said resilient body, and means to rotate
said rotating means.
3
between; airotating driving member in said pas
sageway at said suction-creating means, a ro
tating driven member in said nozzle, bearing
' 3. In a suction cleaner, a surface-contacting means rotatably supporting said driven member
agitator, means mounting said agitator for arcu , in
said nozzle, power-transmission means con
ate rotary movement about a horizontal axis, a
rigid member mounted to move with said agi
tator about its axis and to pivot independently
about an aixs at right angles thereto, and means
necting said driving and said driven members, an
eccentric bearing having co-axial inner and outer
transmitting belt in said passageway connecting
resilient body, and a rigid element connected
to said body for movement relative thereto, said
body and said rigid element being connected be-‘
tween said ?rst-mentioned element and said agi- 25
racesv carried by said driven member, a gyrator
rotatably seated in said bearing in said driven
to move the opposite end of said rigid member
member, an agitator in said nozzle mounted for 10
in a circular path comprising a driving pulley, arcuate
rotary motion about an‘axis at an angle
a power-transmitting belt,‘ a driven pulley, and
a resilient body moved in a circular path and to- the aids of rotation of said driven member,
and a rigid member connected to said gyrator
seating said rigid member and ecoentrically car
by a ball and socket joint and pivoted torsaid
,
15 ried by said pulley.
agitator about an axis
to the axis 15
4. In a suction cleaner having suction-creating thereof, and adapted toperpendicular
rotate therewith.
means, a nozzle, and an air passageway there
8. In a suction cleaner, a driving motor, a piv
between; a rotating‘ driving member in said pas
oted
reciprocating surface covering agitator, and'
sageway at said suction-creating means, a ro
20 tating driven member in said nozzle, bearing power‘ transmission means connecting said motor
to said agitator, said means including ‘an ele- 20
means carried lfy said nozzle rotatably support
ment
moved in-a circular path by said motor, a
ing one end of said driven member, a power
said driving and said driven members, an eccen
25 tric bearing having an inner and an outer race
carried by said driven member, a gyrator seated
in the inner race of said bearing carried by , tator to translate the movementof that element
said driven member for rotation relative‘ thereto,
an agitator in said nozzle mounted for arcuate
30 rotary motion about an axis at an angle to the
axis of rotation of said driven member, and a
rigid member pivoted to said agitator about an
axis perpendicular to the axis thereof .and adapt
ed to rotate therewith, said rigid, member being
connected to said gyrator and being moved there
by in‘ a circular orbit.
.
5. In a suction cleaner having suction-creat
ing means, a nozzle, and‘an air passageway there
between; a rotating drivingmember in said pas
sageway at said suction-creating means, a ro
into a reversing pivotal movement of said agi
tutor .1
I
9. In a suction cleaner, a drive shaft. a pulley
spaced- from. said drive shaft, means mounting 30
said pulley for rotation about an axis substan
tially parallel to said shaft, a power-transmit-_
ting belt connecting said shaft to said pulley,
an internal bearing,’ mounted within the body
of said pulley, the axis of said bearing being\35
' parallel to the axis of rotation of said pulley and
spaced therefrom, a gyrator rotatably mounted '
in said bearing for movement in a circular path
upon the rotation of said pulley, a surface cov
tating driven member in said nozzle, bearing ering agitator mounted for alternate rotary 40
movement, and means connecting said agitator
means rotatably supporting saiddriven member to
said gyrator to pivot said agitator upon move
in said nozzle, power-transmission means con
ment of said gyrator:
necting said driving and said driven members,
10. In a suction cleaner, a drive shaft, a pulley
an eccentric having co-axial inner and outer races spaced
from said drive shaft, means mounting 45
carried by said driven member, a gyrator rotat
ably seated in said bearing in said driven member,
an agitator in said nozzle mounted for arcuate
said pulley for rotation about an axis sub
stantially parallel to said shaft, a power-trans
mitting belt connecting said shaft to said pulley,
an internal bearing mounted within the body of
said pulley, the axis of said bearing being par- 50
rotary motion about an axis at anangle to the
axis of rotation of said driven member, a rigid
member connected to said gyrator forilimited uni
versal tilting relative thereto and pivoted to said allel to the axis of rotation of said pulley and
agitator about an axis perpendicular to the axis spaced therefrom, a gyrator rotatably mounted
K in said bearing for movement in a circular path
thereof.
6. In a suction cleaner havingiuction-creat
ing means, a nozzle, and an air passageway there
between; a rotating driving member in said pas
upon the rotation of said pulley, a surface cover
ing agitator mounted for alternate rotary move- 55,
ment, and means connecting said gyrator to said
agitator comprising a resilient seat carried by
tating driven member in said nozzle, bearing said gyrator anda rigid member pivotally con
nected to said agitator and seated in said seat.
w means rotatably supporting said driven member
11. In a suction cleaner, a drive shaft, a pulley 60
in said nozzle, power-transmission means con
spaced from said drive shaft, means mounting
necting said driving and said driven members. said
pulley for rotation about an axis substan
an eccentric bearing having co-axial inner and
tially
parallel to said shaft, 9. power-transmitting
outer races carried by said driven member, a belt connecting
said shaft to said pulley, a bear
gyrator rotatably seated in said bearing in said
ing carried by said pulley, the axis of said bear- 65
driven member, a body of resilient material car
ried by said gyrator, an' agitator in said nozzle ing being parallel to the”axis of rotation of said
mounted for arcuate rotary motion about an axis pulley and spaced therefrom, a gyrator rotatably mounted in said bearing for movement in a cir
at an angle to the axis of rotation of said driven cular
path upon the rotation of said pulley, a sur
member, and a rigid member connected to and face covering agitator
mounted for alternate ro- 70
moved by said body of resilient material on said
tary movement, and means connecting said.
gyrator and connected to said agitator to pivot agitator
to said gyrator to pivot said agitator ‘ ,
upon movement of said gyrator.
7. In a suction cleaner having suction-creat
12. In a suction cleaner having suction-creat
ing means, a nozzle, and an air passageway there
ing means, a nozzle, and an air passageway there- 75
sageway at said suction-creatingmeans, a ro
same.
'7
-
4
2,114,11e
between; a rotating driving member in said pas
sageway at said suction-creating means, a bear
ing seat positioned on a wall of said nozzle, a
bearing in said seat, a shaft rotatably mounted in
said bearing, a‘ pulley carried by said shaft, a
power-transmitting belt connecting said driving
member to said pulley, an eccentric bearing car
ried by said pulley, a gyrator carried by said ec
centric bearing, an agitator in said nozzle mount
10 ed for arcuate rotary motion about an axis at an
angle to the axis of rotation of said driven mem
ber, a lever member connected to said gyrator for
limited universal tilting relative thereto and piv
to said agitator, said means including an element
moved in a circular path by said motor and com
prising a resilient body, and a rigid arm project'
ing radially from said agitator and having its free
‘end embedded in said resilient body, whereby a
reversing pivotal movement is transmitted to said
. agitator.
16. In a suction cleaner, a driving motor, a piv
oted reciprocating surface covering agitator, and
power transmission means connecting said motor 10
to said agitator, said means including an element
moved in a circular path by said motor, a resilient
body carried by said element and a rigid element
pivotally carried by said agitator upon an axis at
an agle to the pivotal axis of said agitator and ex 15
15 angle to the axis thereof.
tended into ball and socket relationship with
13. In a suction cleaner having suction-creat
said body, said rigid element being adapted to
ing means, a nozzle, and an air passageway there-,
pivot said agitator about its pivotal axis upon the
between; a rotating driving member in said pas
actuation of said ?rst-mentioned element.
sageway at said suction-creating means, a‘bear
17. In a suction cleaner, a rotating driving 20
ing seat positioned on a wall of said nozzle, a
detachable cover closing the interior of said seat member, a power-transmitting member, a rotat
to atmosphere exterior of said nozzle, a bearing , ing driven member, an eccentric carried by said
in said seat, a shaft rotatably mounted in said driven member, a surface-contacting agitator
pivoted for movement about an axis perpendicu
bearing, a pulley carried by said shaft, a power
lar to the axis of said driven member, and means
25 t-ransmitting belt connecting said drivingvmem
vber to said pulley, an eccentric bearing connected connecting said eccentric member to said agitator
to and rotated by said pulley and shaft; a gyrator to reciprocate said agitator as said eccentric
carried by said eccentric bearing, an agitator in _member revolves about'the center of rotation (of
said nozzle mounted for arcuate rotary motion said driven member, said means comprising a
rigid force-transmitting member and a resilient 30
30 about an axis at an angle to the axis of rotation
of said driven member, a lever member connected seat on said eccentric member permitting limit
ed universal movement between said rigid mem
to said gyrator for limited universal tilting rela
tive thereto and pivoted to said agitator upon an ber and said eccentric member, said rigid mem
ber being connected to said agitator by a pivotal
axis extended at an angle to the axis thereof.
connection about an axis perpendicular to the 35
14. In a suction cleaner having suction-creat
35
pivotal axis of said agitator.
ing means, a nozzle, and an air passageway there
oted to said agitator upon an axis extended at an
between; a rotating driving member in said pas
sageway at said suction-creating means, a bear
ing seat positioned in said nozzle, a bearing in
40 said seat, resilient spacing means mounting said
bearing in said seat, a shaft mounted for rotation
in said bearing, a pulley carried by said shaft, a
labyrinth ‘seal formed upon the adjacent faces
of said pulley and said bearing seat to protect
45 said bearing from foreign material, a belt con
18. In an apparatus of the type described a ro
tating driving member and a reciprocating agita
tor andmeans to convert the rotary motion of
said driving element into reciprocation at said 40
agitator comprising a gyrating deformable body,
means actuated by said rotating member to
translate said body in an orbit, and an element
carried by said body and connected to said
45
agitator to transmit a moving force thereto.
19. Inyan apparatus of the type described a
necting said pulley to said driving member, an ec
centric bearing connected to and translated by rotating ‘driving member and a reciprocating agi
tator and means to convert the rotary motion of
said pulley about the pulley axis, a gyrator car
ried by said eccentric bearing, an agitator in said said driving element into reciprocation at said
agitator comprising a gyrating deformable body, 50
50 nozzle mounted for arcuate rotary motion about‘
an axis at an angle to the axis of rotation of said means actuated by said driving member translat
driven member, a lever member connected to said ing said gyrator in an orbit, means pivotally
gyrator for limited universal tilting relative mounting said agitator for movement about an
thereto and pivoted to said agitator upon an axis axis in a plane parallel to the plane including said
orbit, and means to transmit to said agitator the 55
extended at an angle to the axis thereof.
movement of said gyrator which is normal to the.
15. In a suction cleaner, a driving motor, a piv
oted reciprocating surface covering agitator, and pivotal axis of said agitator.
DONALD G. sammm .
power transmission means connecting said motor
CERTIFICATE OF CORRECTION.
Patent No» 2,111+,ll6.
‘
April 12, 1958.
DONALD co SMELLIE.
of the above numbered patent requiring correction as follows : Page. 3, first
column, line 15, claiin 5, before "resilient" insert the word translatable ;_
same page and column, line 1;‘), claim 5, after "eccentric" insert bearing;
and that the said letters Patent should be read with these corrections there
in that the same may conform to the record of the case in the Pateht Office.
Signed and sealed this lhth day of June, A. D. 1938.
(Seal)
Henry Van lArsdale ,
' Acting Commissioner of Patents.
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