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Патент USA US3084009

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April 2, 1963
A. w. SILVA
3,083,999
UTILITY CHAIR STRUCTURE AND THE LIKE
Filed Feb. 10, 1958
‘NVENTDR
United States Patent 0 " ice
l
3-,@83,99§
Patented Apr. 2, 1963
2
U’l‘lLlTY CHALK STRUCTURE AND THE LIKE
Alfred W. tiiiva, San Diego, Calif., assignor to
snsassa
Describing my invention more in detail, in its broader
aspects, said invention comprises a frame structure, gen
erally designated by numeral 2, having a pair of front sec
tion members 4 and a pair of rear supporting members
Adolph F. Graf von Suden, 83H Diego, Calif.
Filed Feb. 10, 1958, Ser- No. 714,107
6, including an upper structure 8 to which the seat mem
ber 10 is connected or mounted thereon, also, having a
5 Claims. (Cl. 297-286)
My invention relates to utility chair structure, and more
particularly to apparatus adapted for providing adjustable,
back rest member 12 extending rearwardly, which is
pivotally connected to said seat member, said seat mem
ber 1t) and said back rest member \12 having a pair of
resilient arm rest members 14, as shown.
elevating and sidewardly movable features in chair con 10
The seat member 10 may, if so desired, be provided
struction, so that same may be easily applicable not only
with a suitable bottom plate 16 forming a part of the up
as a professional piece of furniture but also, for uses as a
holstered seat, which may be of any desired design and
resting, reclining, convalescing apparatus, and for general
structure in order to meet any appropriate condition or
household usage.
requirement, while said back rest 12 is also suitably up
Manifestly, an object of my invention is to provide a
holstered, having a pivotal hinge member 18, as shown
chair structure having a supporting frame which may be
in FIG. 8, so that a desired inclined position between said
pivotally adjusted and arranged to meet any desired re
respective members 10 and 12 may be had, and that, such
quirement, also, said supporting frame having a suitable
inclined position may be maintained by means of a suit
hydraulic, pneumatic or mechanically operable adjusting 20 able fastening lever member Zti‘, when required, as shown
apparatus connected thereto and adapted for elevating,
in FIG. 8.
depressing and tilting said frame to any desired height
The arms rests 14 are made out of suitable rubberized
or position.
or resilient compound that may be bent and yield, or
A further object of my invention is to provide a chair
become arched, stretch, retaining however, a normal con
structure with suitable means for controlling the seat 25 ?guration, when in position as shown in FIG. 1, of which,
position and for controlling the elevation and depression
the respective end sections 22 are suitably mounted upon
thereof, when in use.
the respective sides of said seat lit and said back rest 12,
Another object of my invention is to provide the frame
thus allowing said arm rests to change their originally
structure of said chair with means adapted for swiveling
normal position to suit, when said back rest is pivoted
the seat thereof into any desired direction or position.
30 rearwardly and downwardly, as shown in FIG. 2, without
A further object of my invention is to provide the
materially changing the original shape and con?guration,
frame structure of said chair with suitable mobile means
and also, preserving the rigidity thereof when in use.
for allowing said frame structure to be readily rolled and
The upwardly extending ends of said front section
moved when desired into a stationary position or into
members 4, forming the upper structure 8, are provided
place when in use.
35 with frontwardly extending end members 24, which are
My invention also has for its objects to provide such
means that are positive in operation, convenient in use,
held in pivoted position by means of suitable bracket
members 26 and also supported by an upper cross bar 28,
so that an inclined position of said seat member ill may
facture, relatively simple, and of general superiority and
be secured, as shown more clearly in FIG. 7.
serviceability.
40
In order to provide a horizontally sideward movement
The invention also comprises novel details of con
for said seat member 10, as shown in FIG. 3, a suitable
easily installed in a working position, economical in manu
struction and novel combinations and arrangements of
parts, which will more fully appear in the course of the
following description. However, the drawings merely
show and the following description merely describes em
bodiments of the present invention, which are given by
way of illustration or example only.
Reference is now had to the accompanying drawings,
in which the similar reference characters denote the same
parts.
In the drawings:
FIG. 1 shows a front perspective view of the chair
structure, showing same in a conventional position.
plate member 3%} is provided at the underside section of
the bottom plate :16, both of which are held in center by
means of a suitable center bar or ‘bushing 32, as shown
in FIG. 5, having fastening members or collars 34 dis
posed at the top and bottom sections, for holding said
plate 16 and said plate member 30 in their respective po
sitions.
Said upper cross bar 28 is held in mounted position on
said plate member 30, by means of brackets, thus allow
ing only the seat bottom plate 16 to turn sidewardly and
about the center of said bushing 32.
A lower cross bar 36 is provided at the downwardly
PEG. 2 shows a side elevational view thereof, taken
extending ends of said front section members 4 and each
from the left of FIG. 1, and showing the chair frame 55 outwardly extending end thereof terminating with a suit
structure in a lowered position.
able wheel 33, while the mid-section 39 of said frame
FIG. 3 shows a fragmentary top view of the frame
structure 2 is provided with a suitable center brace 40,
and chair seat, showing the seat section provided with a
held in place by means of brackets 42, and having said
rear supporting members 6 pivotally mounted, as ‘shown,
FIG. 4 shows a vertical fragmentary sectional view of 60 the lowermost ends thereof being provided with a sup
the seat section, taken on lines 4-4 of FIG. 3.
porting brace 44, for maintaining rigid structure for the
FIG. 5 shows an enlarged and a fragmentary sectional
respective members of said frame structure 12.
view of the swiveling plate, taken on lines 5-—5 of FIG. 4.
it may be noted, that either the front section members
sidewardly swiveling member.
PEG. 6 shows an enlarged and a fragmentary eleva
tional and partly sectional view of the frame elevating
apparatus, taken in the same position as shown in FIG. 2.
FIG. 7 shows an enlarged and fragmentary sectional
view of the seat and back rest, showing in dotted lines
4 or the rear supporting members 6 may, if so desired,
be provided with suitable wheels, roller-s or other suit
able free rolling apparatus or appliance, so that the frame
2 may be easily handled or moved from place to place,
or, that either one or all of the downwardly extending
their adjustable and alternate positions.
supporting ends of said frame 2 may be made free of
P16. 8 shows a fragmentary elevational view of the 70 rollers, wheels or the like, and be formed into upwardly
back rest pivoting structure and means for locking same
curved ends, as shown at 46 in FIG. 1, or, that the same
in adjusted position, taken from the bottom of FIG. 2.
3,083,999
3
A,
curved end, a supporting brace in close proximity to said
may be entirely eliminated, for providing a rigid and sta
tionary position of said supporting members of said chair
curved ends of said rear supporting members for
strenghtening same, a lower cross bar disposed at the
extreme downwardly extending ends of said front sec
frame and'thereby preventing saidv supporting ‘members
6 from sliding.
In order to provide an elevational‘or depressional con
tion members for strengthening same, wheels mounted
trol for said apparatus frame structure ‘2, a suitable con
at the extending ‘ends of said lower cross bar for securing
a frontward and rearward movement for said down
wardly extending ends of said pair of front section mem
bers when said pair of rear supporting members are held
tractable andiextendable member 48 is provided, between
said front section members 4 and said pivotally mounted
and angularly extendable rear supporting members 6,~of
which the front end 50 'is connected’ by means of a rod 10
stationary and rigid in position, in combination with, a
wardly extending end ‘of said member 48 is provided with
pair of bracket members mounted underneath said seat
member, an'vupper cross bar connecting said pair of
member 52 to‘ said ‘lower cross car 36, ‘while the rear
a suitable retractable tbarrmember~54 and adapted for
bracket members and said frontwardly extending ends
connecting said supporting brace 44.
of ‘said upper structure of said frame for securing a pivotal
Obviously, it may be noted, that the structure of said 15 action for said‘seat member, and means connecting‘said
contractable and extendable member 48‘may be of any
lower cross~ bar of'said‘front section members and said
conventional design, and that such‘device may be oper
supporting brace of said pivotally connected rear support
able pneumatically, hydraulically or by means of me
ing‘rnembers' for bringing together and separating said
chanically actuating springs, or the combination thereof,
downwardly extending ends of said front section members
and in order to control the position of such a device, so 20 and 'wh'e'n'said'rear supporting members are held in a
that the elevation or depression of‘ the frame structure 2
stationary and ‘rigid position and thereby elevating and
may ‘be secured, a suitable controlling valve member 56
depressing‘said upper structure ‘of said frame including
may be provided at the side section of said seat 10, as
said seat ‘member together with said hingedly connected
shown vin FIG. 1, for connecting, the tubing 58, thereby
backrest ‘of ‘said chair structure.
directing and regulating the ?uid flow and controlling the
4. In a chair structure of the class described compris
passage of said ?uid into and out of said extendable mem
ing a frame structure, an upper‘ structure in said frame
ber 43, as shown;
structure, a seat member and a hingedly secured back rest
While I have thus described my invention with great
member pivotally and tiltably mounted upon said upper
particularity, it will be clear that the same may be mod?
structure, a pair of front section members extending down
i?ed throughout a wide range.
wardly from said upper structure for supporting and for
I accordingly do not propose to be limited to the exact
holding‘said seat member including said back rest mem
details of construction herein shown on the drawings and
ber'in position, a mid~section in said pair of front sec
described in the speci?cation, ‘but reserve the‘rights in
tion members, a lower cross bar at the extended ends
practice to make any and all changes'and modi?cations
of'said‘ pair of front section members having a wheel
therein, which-may come Within the scope of the ap-' 35 mounted‘ at each extending end thereof, a center brace
pended claims.
disposed "at ‘said mid-section of said front section mem
I claim as my invention:
bers, brackets mounted on said mid-section for supporting
1. In a chair structure of the class described comprisi
said' center brace in position and for strengthening said
ing in'combination with‘a frame structure, an upper
pair of front‘ section members of said frame structure,
structure, _a seat member having a bottom plate, a tilt 40 a pair of ‘rear supporting members pivotally connecting
able back rest member hingedly connected to said bottom
said center‘brace ‘extending angularly and downwardly
plate of said seat member, a pair of arm rest'rnemb‘e‘r's' of
therefrom, a supporting brace at the downwardly extend-i
rubberized compound structure and having the respective
ends mounted on the sides of said seat member and the
sides of said back rest member for securing arm support
when said back rest member is in an upright position or
tilted into an inclined slant, a plate member horizontally
positioned beneath said bottom plate of said seat member
and mounted upon said frame upper structure‘, a bushing
ing ends 10f said'rear supporting members, hydraulic means
connecting-said lower cross bar and said supporting brace
for an'gularly‘ converging and diverging said front section
members toward and‘ from said rear supporting members
and thereby raising and lowering said upper structure of
said frame structure together with said seat member and
said back rest member of said chair structure, a con
secured in said bottom plate and said‘ horizontally posi 50 trolling‘ valve member mounted at the side of said seat
tioned plate member, a collar at each end of said bushing
member for-controlling and ‘regulating said hydraulic
for securing and for holding said plates‘ together'and
means whereby the angular raise and lowering of said
thereby securing a swivelling action for said seat and
upper structure of said frame structure‘may be controlled
said back rest members over said frame chair structure‘.
.2. In a chair structure of the class described as de?ned
in claim 1, wherein frontwardly extending end members
.and‘regulated,‘ and a pair of resilient arm ‘rest members
each mounted ‘at the sides of said seat member and said
back‘rest‘member for maintaining side supports for said
are provided in said upper structure, bracket members
mounted at-the undersidesurface of said plate member
and in front of said bushing and said collar, an upper
cross bar mounted in said bracket members and the ends 60
seat member when said back rest member is in an upright
normal position or tilted into a rearwardly inclined slant
and when said seat member is pivotally actuated and in
of said frontwardly extending end members of s'aid‘upper
5. In a chair structure of the class described compris
ing'a frame structure, a pair of front section members
extending downwardly in‘ said frame structure, an upper
structure for securing an inclined position for said seat
member, and a fastening lever member connecting a piv
otal hinge member of said bottomv plate and said tiltable
back rest member for holding samein tiltably locked po
sition.
tilted‘ ‘position.
structure in each of said front section members and each
having a frontwardly extending end member, a. pair of
rear‘supporting members extending angularly and down
wardly and ‘each pivotally connecting said front section
3. In ‘a chair structure of the class described'oomprising
a frame having an upper structure, frontwardly extend
members,- a center brace in said pair of front section
ing ends in said upper structure, 'a seat member and a
members'for supporting said pivotally connecting rear
hingedly connected back rest member mounte'd'on said 70 supporting- members and for strengthening said frame
upper structure, a pair of front section members extend
structure, a lower cross ‘bar at the downwardly extending
ing downwardly from said‘ upper structure of said frame,
ends of ‘said front section members, a Wheel at each end
a pair of rear‘supporting‘ members pivotally connecting
of said lower cross bar for providing mobility for said
said pair of front section members each having a down
frame structure, a supporting brace in ‘close proximity
wardly extending frame end terminating with an upwardly
to the downwardly extending ends of said rear support
3,099,999
5
ing members for strengthening same and said frame struc
ture, a seat member having a bottom plate tiltably and
pivotally mounted on said frontwardly extending end
members of said upper structure, ‘a back rest member
hingedly connecting said bottom plate of said seat mem
her, a pair ‘of arm rest members of resilient structure
each mounted on the sides of said seat member and
said sides of said back rest member for securing arm sup
port when said back rest member is in .an upright posi
tion or tilted into an inclined slant and when said seat 10
member is in a tilted position or swivelled over said upper
structure of said frame structure, means connecting said
supporting brace of said rear supponting member and
said lower cross member of said front section members
for *angularly rolling and extending said front section 15
members away from said rear supporting members when
same are held in a stationary position and for retracting
said angularly rolling position of said front section mem
bers and bringing same toward said rear supporting mem
bers and thereby providing an angularly depressing and 20
elevating position for said upper structure of said frame
6
structure including said seat member and said back rest
member of said chair structure, and a controlling valve
member mounted on at least one side of said seat mem
her and connecting said last mentioned means for con
trolling and regulating said depressing and elevating posi—
tions of said upper structure of said chair ‘structure, sub
stantially as described.
References Cited in the ?le of this patent
UNITED STATES PATENTS
196,377
1,562,161
Newsom _____________ __ Oct. 23, 1877
Guterman ____________ __ Nov. 17, 1925
2,442,303
M-ay?eld _____________ .. May 25, 1948
2,585,447
2,690,793
2,749,969
Eichorst _____________ .._ Feb. 12, 1952
Pederson ‘et a1. ________ __ Oct. 5, 1954
Tatter _____________ __ June 12, 1956
450,928
803,930
1,035,299
Germany _____________ __ Nov. 3, 1927
Germany ____________ __ Apr. 12, 1951
France _____________ __ Apr. 15, 1953
FOREIGN PATENTS
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