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Патент USA US2132467

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Üct. 11, 1938.,
I
W. M_ HANSON
ZIÈÈZAQ?
CHAIR
Filed Dec. l0, 1937
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A TTORNE YS.
OCÍ. 11, 1938.
W, M‘ HANSON
2,132,467
CHAIR
.Filed'Dec. lO, 1957
.
i
2 Sheets-Sheet 2
BYÉàï//Q/g
A TTORNEYS.
Patented Oct. 11, 1938
A 2,132,467
.UNITED STATE-s Vifi-.1yr1:1#1'15:or-F1cfr;
CHAIR I
`Walter M. Hanson, Grand Rapids, Mich., assigner
to American Seating Company, Grand Rapids,
Mich., a corporation of New Jersey
Application December 10, 1937, Serial No. 173,041
V9 Claims. (Cl. 155-95.)
- The present invention relates to chairsand
more particularly to chairs of the revoluble type.
` The-primary objects ‘of the instant invention
are to provide a chair- of the general character
mi
lÓ
above indicated and which is particularly Iwell
adapted for installation and use in airplanes al
though it is likewise adaptable for use in motor
buses, railway coaches and the like; to provide
such a chair which may- be conveniently revolved
and thereafter fixed in a predetermined rotated
position; and, to provide such a chair which
though light in weight, is rigid and sturdy in con
struction;utilitarianv in its intended use and rea
sonably economical'in manufacture and installa
r tion.
An illustrativeembodiment of the invention is
shown in the accompanying drawings, wherein:--' Figure 1 is a` front elevational view of the
chair;
'
" Figure 2 is'aside `elevational view thereof;
y Figure 3 is a sectional view online 3_3 of Fig
ure
1;
"
A
’
Figure 4 is an> enlarged fragmentary view of
one of the chair-legs elevated from vthe floor _and
25 in its normal and rotatable position as shown in
full lines from its ‘flxedly depressed position
shown in dotted lines;`
arms for the chair» are secured adjacent opposite
sides of the seat support 2| and provide-spaced
depending front and rear legs 25, 26, 2l and 28
for the chair. Reinforcing tubular members 29,
30 connect each front leg 25, 2'| with its rear leg
26, 28 respectively and each reinforcing member
29, 33 is connected by a pair of spaced parallel
and transverse tubular reinforcing members 3|,
32. The opposite ends of the arcuate frame mem
berl I3 are each secured toa tubular cross mem
medial or upper portion of this arcuate frame
member is secured to a transverse tubular mem
, ber 34 ñx'ed between oppositeV sides of the seat 15
support
2|.
`
'
,
.
’The centrally depending tubular column |'| is
provided with a rigidly fixed bell'portion 35 near
its lower end which springably seats upon the
upper end of the coiled expansion spring I6 for
normally elevating the legs 25, 26,21 and 28 of
the chair above the floor.
This bell portion 35 is provided with a pair of
oppositely disposed and laterally projecting lugs
36 upon which thetransverse tubular members
3| , 32 are each seated and to which each is se
cured. as by rivets 31 passing through plates 38
Figure 5 is an enlarged fragmentary view of a
seated upon the upper lengths of each member
portion of the under’carriage of the` chair, the
30 central supportingY pedestal'and its rbase'being
3|, 32, which rivets likewise pass through each of
shown in central vertical section;
'
Figure 6 is a sectional view thereof on line 6-6
ofFigure 5;
Figure 7 is aV sectional' View on line '|--'| of Fig
ure 5; and
'
Figure `8 'is an enlarged sectional view on> line
8-8 of Figure 5.
l
Referring then "to, the drawings wherein like
parts of the structure shown are designated by
40 the same numerals in the several views, a tubular
pedestal I0 is here shown as- secured to a‘base |I
in vertical disposition relative thereto as by a
bolt I2 passed through the tubular pedestal and
by its nut |3 in screw threaded engagement there
with which is in engagement with the-roof of the
base within the well lll'th'erein. The upper end of
the base | | is provided with a seat I5 upon which
a coiled> expansion spring I6 is supported and
whicn‘spring encircles a tubular column |'| slid
ably vand rotatably embracing the pedestal I0.
Th-e ‘chair from whose arcuate under frame
member I8 the tubularcolumn |`| is rigidly se
cured and fromv which it centrally depends'gen
erally comprises an upholstered back I9 secured'
within an inverted U-shaped tubular back sup
port 2D secured'adjacent the rear side lengths of
a tubular seat support 2| upon which the up
holstered seat 22 is mounted and to which the
seat is secured. A pair of oppositely disposed in
60 verted U-shaped tubular members 23, 24 forming
10
ber 33, ñXed between the pair of spaced parallel
tubular -reinforcing 'members 3|, 32 and the
said members and through each lug 36, all as 30
best shown in Figures 2, 3v and 6.
A double toggle having two of its pair of links
39 pivotally connected to the pedestal I0 by
means of a pintle 40 passing through slots 4I in
the tubular column» |'|« and having two of its
other pair of links 42 pivotally connected to up
standing ears 43 integrally formed with the bell
portion 35 of the column I'|, is pivotally connected
intermediate each of itspairs of links by a pair
of spaced parallel double links 44 whose op 40
posite ends are Veach pivotally connected to a
pedal 45 which in turn is pivotally connected to
the arcuate frame member I8, as best shown in
Figures l and 5.
I
Thus in operation, since'the legs of the chair 45
are normally elevated above the floor as shown
in full lines in-Figure 4>~because the bell portion
35 of the tubular column I1 is supported on the
coiled expansion spring I6, movement of the pedal
from its position shown in full lines in Figure 5 50
to its positionfshown in dotted lines in the same
view breaks the toggle and compresses the spring
to depress the legs of the chair into frictional en
gagement of their rubber capped feet 46 with
55
the floor.
- It will thus be seen that the chair herein shown
and described may be conveniently revolved when
unoccupied and thereafter ñXed in a predeter
mined rotated position by pedally operated means.
While but one specific embodiment of the in- ß
2,132,467
2
to permit rotation of the supported chair, and
mechanism operatively connected intermediate
the spring supported column and its supporting
pedestal for depressing the column to eiTect fric
tional engagement of the legs with the floor.
vention has been herein shown and described, it
will be understood that certain details of the con
struction shovvn may be altered or omitted With
Ul
out departing from the spirit of this invention as
the same is deñned by the following claims.
I claim:
6. In a structure of the class described, a chair
1. In a structure of the class described, a chair f supporting pedestal adapted to- be secured to the
supporting pedestal adapted to be secured to the lfloor in vertical disposition relative thereto, a
coiled expansion spring encircling the pedestal
floor in vertical disposition relative thereto, a
chair having a plurality of depending legs and
Vand 'supported upon the base thereof, a chair 10
having a plurality of depending legs and pro
provided with a depending tubular column slid
ably embracing and springably supported by the ' vided with a centrally depending tubular column
pedestal for normally elevating the legs above
slidably and rotatably embracing the pedestal
the floor, a toggle having one link pivotally con
and having a portion supported upon said spring
for normally elevating the legs above the floor
to permit rotation of the supported chair, a toggle
having one link pivotally connected to the ped
estal and having its other link pivotally con
nected to the column, and pedally controlled
mechanism operatively connected with the toggle 20
for depressing the spring supported column to
effect frictional engagement of the legs with the
ñoor to thereby prevent rotation of the chair.
nected to the pedestal and having its other link
pivotally connectedk to the column, and mecha
nism operatively connected With the toggle for
depressing the spring supported column to eiîect
frictional engagement of the legs With the floor.
20
2. In a structure of the class described, a chair
supporting pedestal adapted to be secured to the
floor in vertical disposition relative thereto, a
chair having a plurality of depending legs and
provided with a centrally depending tubular col
umn slidably and rotatably embracing and
springably supported by the pedestal for nor
mally elevating the legs above the floor to permit
rotation of the supported chair, a toggle having
one link pivotally connected to the pedestal and
30 having its other> link pivotally connected to the
column, and pedally controlled mechanism op
eratively connected with the toggle for depress
ing the spring _supported colurnn'to effect fric
tional engagement of the legs with the floor
35 to thereby prevent rotation of the chair.
3. In a structure of the class described, a chair
supporting pedestal adapted to be secured to
the floor in vertical disposition relative thereto,
ably embracing and springably supported by the
pedestal for normally elevating the legs above
the floor, and mechanism operatively connected
intermediate the spring supported column and
45 its supporting pedestal for depressing the col
umn to ei‘lect irictional engagement ofthe legs
»
ably embracing and springably supportedby the
pedestal for normally elevating the legs above 30
the floor, a toggle having one link pivotally con
nected to the pedestal and having its other link
pivotally connected to the» column, a single link
pivotally connected at oneend intermediate the
pivotally connected toggle links, and a pedal 35
pivotally connected to the chair frame and to
the other endv of the single link to break the
toggle- for depressing the spring supported co1
a chair having a plurality of depending legs and
40 provided with a depending tubular column slid
With the floor.
'7. In a structure of the class described, a chair
supporting pedestal adapted to be secured to the 25
floor in Vertical disposition relative thereto, a
chair having a plurality of depending legs and
provided With a depending tubular column slid
»
4. In a structure of the class described, a
chair supporting pedestal adapted to be secured
50 to the floor in vertical disposition relative there
to, a coiled expansion spring encircling the ped
estal and supported upon the 'base thereof, a
chair having a plurality of depending legs and
provided with a depending tubular column slid
55 ably embracing the pedestal and having a por
tion supported upon said spring for normally
elevating the legs above the floor, and mecha
nism operatively connected intermediate the
spring supported column and its supporting ped
60 estal for depressing the column to effect fric
tional engagement of the legs With the floor.
5. In a structure of the class described, a'chair
supporting pedestal adapted to be secured to the
floor in vertical disposition relative thereto, a
coiled expansion spring encircling the pedestal
and supported upon the base thereof, a chair
having a plurality of depending legs and- pro-v
vided With a centrally depending tubular column
slidably and rotatably embracing the pedestal
and having a portion supported upon said spring
for normally elevating the legs above the floor
umn to effect irictional engagement of the legs
with the ñoor.
.
8. In a structure of the class described, a chair
40
supporting pedestal adapted to be secured to the
floor in Vertical disposition relative thereto, a
chair having a plurality of depending legs and
provided with a centrally depending tubular col 45
umn slidably and rotatably embracing and
springably supported by the» pedestal for nor
mally elevating the legs above the ñoor to per
mit rotation ofthe supported chair, a toggle
having one link pivotally connected to the ped
estal and having its other link pivotally con 50
nected to the column, a single link pivotally
connected at one end intermediate the pivotally
connected toggle links, and a pedal pivotally con
nected to the chair frame Vand to the other end 55
of the single link to break the toggle for de
pressing the spring supported column to effect
frictional engagement of the legs with the floor.
9. In a structure of the class described, a chair
supporting pedestal adapted to be secured to the 60
ñoor, a chair rotatably supported upon the ped
estal and having a plurality of depending legs, ,
an expansion spring interposed between the ped
estal and the chair for normally elevating the
legs above the surfacel of the ñoor, and mechani 65
cal means operatively connected to the chair and
to the pedestal for depressing the chair to cause
the legs thereof to frictionally engage the sur
face of thefloor for preventing rotation> of the
chair.
-
-
.
.
Y
r
WALTER M.
HANSON.
.
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