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Патент USA US2146191

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Feb. 7, 1939.
7 Filed March 16, 1937
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Feb. 7, ‘1939.
Filed March 16, 1937
‘ s Sheets-Sheet 2
7, 1939.
Filed March 16, 1957 ,
s Sheets-Sheet 3
Patented Feb. 7, 71939
Henry E. Peters, Seattle, Wash.
,Application March 16, 1937, Serial No. 131,140
4 Claims. (01. 155-29)‘
-This invention relates to chairs, and particu
larly ?exible chairs with movable parts, that may
be shifted into various positions by an occupant
seated therein, for healthfulsupport of the body.
It is assumed and believed, that in most kinds
of physical deformity, the skeletal tissue of the
body is misaligned and irregular, and that the
circulation within and function of the parts so
affected are relative to the nature and degree
‘10 of the skeletal'articular misalignment. Numer
ous maladies are attributable frequently to» skele»
tal misalignment and visceral displacement.
Itis therefore an object of this invention to
provide a chair with a movable back and other
' l5 movable parts, to form ?t the body, upon which
the body may be supported in various positions,
to relieve visceral displacement and skeletal mis
alignment, and to prevent undue pressure and
gles, for easing affected parts of the body into
their natural positions, for relieving visceral dis
placements, and so that the body may be gently
stretched to facilitate complete relaxation of the
With these and other objects, that will here
inafter appear, I have illustratively exempli?ed
my invention by the accompanying drawings, of
Figure 1 is a side elevation, with parts broken 10
Figure 2 is rear elevation of the chair, with the
back elevated.
Figure 3 is a bottom plan.
Figure 4 is a side elevation partly in section, 15
with parts of teeth broken away, and with the
back lowered and foot rest elevated.
Figure 5 is a front elevation, taken on line 5——5
strain on the various muscles of the body and . of Figure 1, with a portion of the back and bot~
20 to relax the same, while the various positions of tom enlarged.
the chair are varied.
Figure 6 is a perspective detail view of the rear
A further object is to provide such a chair seat, with fragments of adjoining parts.
with a seat member constructed with a depression
Figure 7 is a side elevation, with front and back
in the rear portion of the top face thereof to» con
portions substantially level, with parts broken
‘25 form‘to the shape of the muscles of the upper away or omitted.
portion of the thighs and buttock, and provided
Figure 8 is a detail side; view of the rear seat,
with elevated front and side portions, for sup
in section enlarged and taken on line 8--8 of Fig
porting theweight of the individual in healthful
positionsjon‘said seat. It is also an object to
30 mount said seat in slidable relation, in front of
the movable back member of said chair, and to
adjustably connect said back and seat, to provide
constant contact with certain parts of the body,
while thepositions of the parts of said chair, are
It is a further object to provide such a chair
pivotally mounted on an axle, and to so adjust the
position of the parts of said chair, so that the
center of the weight of the body thereon will
40 remain substantially over such axle, while the
positions of the chair are Varied.
It is also important on occasions that the body
be brought into various recumbent positions,
sometimes with the head portion'thereof in a
45 lower position than the foot portion, to relieve
visceral displacements, and. for relaxing the mus
cles of the abdominal and pelvic regions, and to
relieve or prevent congestion therein. It is there
fore among the objects of this invention. to pro
50 vide such an adjustable chair, whereby the upper
faces thereof for contact with a body,‘ may be
brought into various planes, said chair to be also
supported adjustably over said axle for lowering
either the head or foot portion, while the face of
55 said chair is on a single plane, or on various an
ure 6, and
Figure 9 is a detail view enlarged of the rear
seat, partly in section, taken on line 9--9 of Fig- 30
ure 8.
Like characters on the different ?gures repre
sent like parts.
An outside supporting frame is generally indi
cated as A, and formed of bottom side rails I 0, 35
posts 12 at corners, top side rails l3, and cross
braces l4. Inner top rails l5 are attached to the
posts, and are provided with notches l6 and I1,
along the top edge for supporting other movable
parts. The frame is mounted on casters for mov- 40
ing the chair on a floor.
Operative hand wheels l8, are mounted on the.
ends of a cross drive shaft 19, which is rotatably
supported in ordinary journals 2|, affixed to the
rear posts. Drive pinion gears 20, are-attached 45
to the shaft. A back member, generally desig
nated as B, is formed of parallel rails 24, con
nected by slats 25. On the rear lower edges of
these rails are a?ixed curved sectors 26, provided
with rack teeth 26', on the central portions there- 50
of, which mesh in the teeth of the pinion gears,
for shifting the positions of the chair when the
hand wheel is manually turned.
The back and rails 24, are pivotally supported
on a cross axle 21, and the endsi of the axle are 55
2 .
supported in said notches l1. A tie rod 28, con
nects the rails 24, and the body of said rod be
tween the rails provides lifting ‘bearings 28'.
Cross rods 29 and 30 also connect the sectors,
and serve to! actuate arms for elevating the foot
portions of the chair. Rods 3| attached to the
upper rear edges of the rails 24, provide guides
Further provisions are made for the support
of the feet and lower extremities of the individ
ual, as follows: Extension rails 41 are pivotally
connected at their upper ends onto the front
cross rod 31, and provided with a central cross
rod 48 and also with a lower rung 49 for a foot
rest, between the lower ends of the rails. Rings
position .over curved arms 22. These arms 22, are
55 may be carried over the rungs for stirrups into .
which the feet may be inserted, when the person
is recumbent on the chair .and desires to stretch
pivotally connected at their rear ends, to the rear
ends of the top rails l5, and are prevented by said
loops from spreading outward when used by oc
.as shown in Figures 4 and '7.
for another cross rod 32, which is provided with
loops 33, on the ends thereof, for slidable dis
cupant seated upright, and prevent the arms 22,“
15 from moving, when used for stretching the body,
in position shown in Figures 4 and '7.
34 represents guides for supporting seats and
his body between such stirrups, and the curved
arms 22, while the chair is tilted into positions
Operative arms 52 are pivotally connected at
their front ends to the cross bars 48, and are
held in spaced relation by rod 52’. The rear ends
of the arms are provided with notches for ad
are pivotally connected at their rear ends to said . justable placement over either of the sector rods '
axle 21, and their front ends are supported on
a cross bar 35, which extends therethrough, with
the ends thereof normally resting in said notches
it, in top of the frame. Seat runners 36, are
slidably mounted over the guides 34, with their
front ends pivotally supported on the ends of
a cross tie rod 31. Another tie rod 38, maintains
the runners suitably spaced and moves said run
ners attached thereto. Mounted over the front
end of such runners 36, is a front section 39, of
a seat also designated, as C; and mount-ed over
the rear end of such runners is the principal or
rear section 49, of the seat, also indicated as Ca'.
An auxiliary back member of sheathing, D, is
slidably disposed on the front face of the mem
ber B, and adjustably connected by links 4|, to
29 or 39, for various elevations of the foot rest.
When said sectors’are rotated, the said arms 52 20
are pushed forward or drawn back, and the front
extension rails and foot rest carried to various
positions desired, as illustrated in Figures 1, 4
and 7.
The rear seat section 40, has its top face hol 25
lowed out at the rear portion, with a concave
depression 51, to conform with the ordinary
shape of the muscles of the upper portion of the
thigh, and with a short supporting central ridge
58, at the front of the depressions to support the 30
pubic structure between the thighs. Said depres
sion gradually slopes upward to the highest por
tions of the seat as at 59 on the sides, and at
69 in front to support the principal weight of
rails 42, by pins 45,. A series .of holes 46, through
the links, provides for adjusting the distance be
the body. The rear. edge of this seat is lower
than the front portion and is as low as the lowest 35
portion of the face of the seat, and is spaced
from the lower end of the auxiliary back and in
tween the member D and the rear .of seat 49, to
conform with requirements of persons of differ
ent size. Between the side rails 42, of the back
body beneath the spinal column, and to so re
lieve from pressure beneath .the hip joints and 40
the rear ends of said runners by the said cross
rod 38. The links are pivotally connected to the
D are ordinary slats 43, and a special panel 44,
to ?t the back of the individual, is suspended by
pivot rod 44’ extended into the rails 42.
Arms 50, are pivotally connected at their front
ends over the cross rod 31, and extend back
ward and their rear ends provided with eyes 5|,
which connect with the lower portions of the back
rails 24, by pivotal mounting over said lugs 28’.
The arms 59, are provided with a central tie rod
50 56'’. Thus when the back of the chair is low
ered, the arms 59, are pushed forward, and the
cross rod 31 and front ends of the runners with
the seats are moved forward and upward. Si
multaneously, the links are drawn forward by
said rod 38 and the auxiliary back is thereby
drawn downward, both without changing, the po
sition of the back or seats on the body of the in
dividual, who is moved with said seats and back,
60 with his center of weight over the axle.
The front seat section. 39, is connected over
the runners by pivotal contact with the rod 31,
and the rear section of the seat 40 is adjustably
connected over the runners and the cross rod 38,
65 by sets of pins 49’, which are projected through
and below such seat and span said rod 38. Seat
section 49 is also provided with bracket legs 55
which extend down from the rear portion there
of, for tilting the said seat section. When the
back of the chair is lowered to positions shown
in Figures 4 and '7, the cross rod 29 is moved for
ward by the sectors 25 and impinges against the
lower ends of said brackets, and thereby tilts the
face of the seat section 49, to conform with the
75 natural position of the body resting thereon.
position to escape the principal weight of the
on the lower spine. When the back and seat
are tilted as before described, the same contact
with the body is maintained.
When the several parts of the chair have been
‘shifted to provide an approximate horizontal 45
plane, as in Figure '7, the several parts of the
chair no longer move individually, .but as the
back is lowered still further the central parts of
the chair and the front end all rotate together
as a whole over the axle 21, and the body will
.50 .
lie in a recumbent position thereon, stretched out
thereon in natural position, with every part of ;
the body supported by the face portions of the
chair while approximately balanced on the axle.
The various positions of the ‘chair may be easily 55
obtained by the operations of the hand wheels,
turned by the occupant, in whatever position he
may be on the chair. Dotted lines are shown in
several of the ?gures, with like numerals to illus
trate shifted positions of the several parts of the 60
chair when the hand wheel is rotated to various
positions. It will be noted that when the chair
has been turned to position shown in Figure 1,
that the lower endsof the back rails 24, will have
contacted the cross bars .35, and raised them 85
from the notches l6, and thus elevated the for
ward portions of the guides 34, and seat runners
and seats, to form ?t beneath the back of the
individual recumbent thereon.
It will be understood that when the back of
the chair is disposed approximately perpendicu
lar, that the rear edge 'of- the seat 49 is approxi
mately over the axle 21, and the weight of the
body balanced thereover, permitting easy move‘
ment of the chair. Again when the chair back
is lowered, said seat is moved forward, and the
individual is also carried forward thereby, and
by the sliding auxiliary back, and the weight of
the individual continued approximately balanced
over the axle, with the body supported partly by
‘the seat and partly by the said back. The space
between the rear seat and the lower end of the
back at all times prevents any pressure against
the lower end of the spine from the rear thereof.
vThis ?exible chair provides means for both
exercise and relaxation of the various portions
of the human body, and the inventor has demon
strated by the actual use thereof, that it is both
practical, and amazingly bene?cial for the pur
poses for which it was designed and constructed.
While for the purposes of explanation I have
" shown certain detailed construction, yet my in
slidably mounted over said guides in front of said
sheathing and connected in pivotal relation by
links therewith and adapted to move forward
when said sheathing and back are lowered, and
adapted to move backward when said sheathing
and back are raised for maintaining constant
contact with ?xed positions on the back and
thighs of the occupant of said chair while the po
sitions of the chair are varied, with means for
moving said chair back and axle on said frame.
3. A ?exible health chair, with a plurality of
movable parts in substantial balance on a sup
porting frame, said parts comprising, rails for a
back member pivotally supported on an axle, a
back sheathing slidably mounted on said rails,
for the purposes mentioned, with all'such varia
means connected to the lower portion of said
rails adapted to shift the various parts of said
chair to various positions when said back rails
are rotated on said axle, a seat slidably mounted
in front of said sheathing, and ?exibly connected 20
thereto, and adapted to move forward and back
tions as may be within the scope of my claims.
Having described my invention, I claim as new:
1. A ?exible health chair, with a plurality of
axle to conform with various positions of the
body of an individual, extension rails pivotally
vention is not limited to such speci?c method of
20 construction, and I desire to claim the invention,
25 movable parts, comprisingv a supporting frame,
an axle mounted across said frame, a chair back
mounted on said axle and adapted to rotate in
relation to said frame, a drive shaft revolvably
mounted across said frame, sectors affixed to
30 lower ends of said chair backs, rack teeth car
ried 'on the sectors, pinion gears affixed to said
shaft with the teeth thereof in mesh with said
rack teeth, and means for turning said shaft and
rotating said axle and chair into various posi
tions, guides mounted on said frame in front of
said back member, a seat slidably mounted over
said guides, a sheathing slidably mounted on the
front face of said back member and pivotally
connected to and in spaced relation with the said
, seat and adapted to move downward and forward
as said seat is moved forward on said guides; ex
tension rails pivotally connected to front of said
guides, arms pivotally connected to and between
I saidrails and said sectors and adapted to raise
45 and lower said rails for a leg and foot rest when
, said sector is turned and said back raised and
lowered respectively, the said back and movable
parts adapted to be moved into various positions
simultaneously, for an upright seat and for an
inclined support for ‘an individual in substantial
balance over said axle.
2. A health chair with a plurality of interact
ing movable parts comprising, a supporting
frame, an axle mounted across said frame, a
chair back member pivotally suspended on said
axle, a sheathing member slidably disposed upon
the front side of said back member, guides sup
ported by said axle in front of said back, a seat
as said back member is raised or lowered on said
connected in front of said seat, with means for -
elevating said rails for a foot rest, when said seat
back is lowered.
4. A health chair with a plurality of movable
parts, comprising a frame, an axle supported by
the frame back member pivotally mounted on
said axle, runners pivotally supported by said
axle and extended forward therefrom, extension
rails pivotally connected to the front ends of said
runners, for supporting the legs and feet of an
individual, a seat slidably mounted on said run 35
ners, arms pivotally supported on each side of
said seat, for convenience of the occupant of said
chair while seated, and adapted to be tilted back
ward with said chair-back to provide fulcrums
for the arms of the individual for stretching his 40
body, with a shaft rotatably supported by said
frame, and means for turning the same, a driv
ing pinion affixed to said shaft, and toothed seg
ment carried on said back member operatively
adjusted for being moved by said pinion, for tilt 45
ing said back member level with and lower than
said seat, and lever bars actuated by said back for
simultaneously tilting said foot rest level with
and higher than said seat, to bring said back, seat
and foot rest on substantial even planes, at vari 50
ous angles over said axle, for adjustment of the
visceral parts of the body and for relaxation of
said body, with means connected with said foot
rest for retaining the feet, when the arms of the
individual are braced against said chair arms, for
stretching the body for further relief and relax
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