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Патент USA US2137427

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Nov. 22,
71%. ct. THOMSON
2,137,427
FOLDING CHAIR
Filed Jan. 28, 1937
3 Sheets-Sheet l
ROY CAMPBELL THOMSON
HLS ATTORNEYS
Nov. 22, 1938.
R. c. THOMSON 7
‘
2,137,427
FOLDING CHAIR
Filed Jan. 28, 1957‘
’
3 Sheets-Sheet 2
'
g] .
INVENTOR‘
Roy CHHPBELL. momsou
f?v
'
gawk ,MA’M
ms A'rrdeNEYs
Nov. 22, 1938;
R. c‘. THOMSON
'
2,137,427
FOLDING CHAIR
.Filed Jan. 28, 1957
3 Sheets-Sheet 5
INVENTOR
Rev CAMPBELL THOMSON
2y
?wwpm‘é
HIS ATIORNEYS
“
2,137,427
‘Patented Nov. 22, 1938
nirso STATES
PATENT OFFICE
2,137,427
FOLDING CHAIR
‘Roy Campbell Thomson, London, England
Application January 28, 1937, Serial No. 122,752
In Great Britain February 21, 1936
7 Claims.
(Cl. 155-177)
This invention relates to folding chairs and is
especially applicable to chairs comprising a piv
oted X-shaped frame and generally known as
deck chairs.
According to the invention there is provided.
in or for a deck chair, a head~rest comprising
side~supports hinged or adapted to be hinged
on the chair-frame for adjustment backwards
and forwards and an adjustable strut for en
gagement with the chair-frame to vary the posi
tion of the head-rest.
A feature of the invention consists in that
the head-rest comprises two struts pivotally
mounted, one on each of the side~supports and
provided with spaced projections for engagement
with the chair-frame, a ?exible part extending
between the side-supports and a cross-link con
necting
struts at a position spaced away from
their ends.
The pressure of the head on the ?exible part
20
of the head-rest draws the two side-supports to
wards one another so that, due to the provision
of the cross-link the outer ends of the struts are
moved outwardly away from one another, so that
their projections engage with the co-operating
projections on the chair—frame, to hold'the head
rest in position. The movement of the two side
' supports towards one another is conveniently per
‘mitted by reason of slight play in the pivotal
mounting of these supports or the resilience of
the supports themselves.
According to a feature of'the invention there
is provided‘the combination of a folding chair and
a head~rest comprising side-supports pivotally
mounted on the chair-frame for adjustment of
the position of the head-rest, a ?exible part ex
tending between these side-supports, a pair of
rearwardly-extending struts pivotally mounted,
one on each of said side-supports, which strut
40 members are each provided with a plurality of
?exible and are bent over and detachably con
nected to the upper ends of the front pillars.
Preferably, a cross-bar is detachably connected
to the upper ends of the front pillars and serves
also to lock the ends of the rear pillars when
connect-ed therewith.
A further feature of the invention consists in
the provision of a deck chair in which the head
rest aforesaid extends beyond the main frame,
and the main frame is itself made corresponding 10
ly shorter. In this manner, the chair when fold
ed is appreciably. shorter than a deck chair of
normal construction.
An embodiment of the invention is shown by
way of example in the accompanying drawings, in
which:
Figure l is a perspective View. of a deck chair
provided with a head-rest and tent frame;
Figure 2 is a view similar to Figure l with the
tent cover in place;
Figure 3 is aside elevation of the head-rest in A
place on the chair;
Figure 4 is a plan of the head-rest viewed in
the direction of the arrow 4 in Figure 3;
Figures 5 and 6 are diagrammatic views of the
head-rest showing the manner of its operation;
Figures '7 to 10 show details of the tent frame;
Figure 11 is an elevation of a deck chair in
which the head-rest extends beyond the main
frame, and
‘
Figure 11a- is a detail thereof.
Like references indicate like parts in the sev
eral ?gures of the drawings.
‘
Referring to Figures 1 to 4 ‘of the drawings
there is shown a deck chair of normal construc 00 6-1
tion comprising two frame-parts I'D and H piv
oted together, a stay-frame l2 pivoted to the
frame-part l0 and a ?exible seat l3 secured to
opposite ends of the frame parts It and H. On
tachably mounted upon the side-supports of the
each side-member the of the frame-part Hi, there
is secured a bracket M conveniently of U-shape,
the limbs of which bracket extend upwardly be
yond the frame. Between the limbs of each
bracket 14 there is pivotally mounted a side
support [5 of the ‘head-rest, and a strip 56 of can
vas, or other ?exible material, is secured to the
two side-supports l5.
On the inner side of each of the side-supports
l5 there is pivotally mounted a strut I1 and each
of these struts is provided with a plurality of
projections it for engagement with a projection
19 at the top and at the inner side of the frame
member Illa.
The struts H are arranged to slide on the nor
55 ‘ head-rest, which rear pillars are at least in part
mal top bar 2‘! of the frame-part H), to which bar
outwardly-directed spaced projections for en
gagement with projections on the chair-frame
and a cross-link. connecting the struts at a posi
tion spaced away from their ends.
In a preferred construction, a ?xed guide is
45
provided on the chair-frame for each of the rear~
wardly-extending struts and means is preferably
provided for looking the struts in the guides.
A feature of the invention consists in the com
bination with a chair having a head-rest as
aforesaid, of a tent or like frad e comprising two
front pillars detachably mounted on side-mem
bers of the chair~frame and two rear pillars de
2.,
2,137,427
the upper end of the ?exible seat I3 is connected.
Each strut is retained in position on the bar 2|
by means of a guide consisting of a bracket 22
secured to the upper end of the frame-member
I0a and overlying the strut I ‘I.
In use, when no pressure is applied to the ?ex
ible part I6 of the head-rest, there is no effort to
force any of the projections I8 into engagement
with the co-operating projections I9 on the chair
10 frame, so that, as will be seen from Figure 5, the
head-rest can easily be adjusted about the piv
otal mounting of its side-supports. When pres
sure is applied to the ?exible part It of the head
rest the several parts take up the positions shown
15 in Figure 6. The outer ends of the supporting
side-members are drawn slightly together and
thus the struts I ‘I, pivoting about their connection
to the cross-link 20, are forced outwardly at their
outer ends to bring the projections I 8 into engage
ment with the projections I9, the projections I8
which have effect being those next adjacent to
the projections I9 in the selected position of the
head-rest. Thus, the head-rest may be very
easily adjusted by the user while actually seated
in the chair.
.
In order to prevent the struts II from being
drawn clear of the bar 2 I, a stop 23 is provided on
each of these struts to engage with the bracket 22.
These stops 23 are hinged to enable them to be
30 folded ?at against the strut I‘! in order to permit
the struts I’! to be withdrawn for folding up the
chair. Thus, in the folded position of the chair
the side-supports I5 of the head-rest can be
turned either forwardly or backwardly down on to
35 the side-members It'a of. the frame, and the struts
I‘! are in turn folded down to lie just within the
supports I5. Locking means consisting of a
thumb-screw 24 screw-threaded in each of the
guide-brackets 22 is conveniently provided rigid
40 ly to lock the struts in any selected position by
clamping them against the frame-bar 2 I.
In order to provide for the attachment of the
tent frame each of the side-members IIrz of the
frame-part II has secured to its forward end a
45 plate 30 formed with a hole 3| having a key-slot
32 (see Figures 7 to 9). Two front pillars 33 are
detachably connected to the plates 3!! and for this
purpose each pillar 33 is provided with a spigot
34 entering in the hole 3I and a lateral pin 35
50. which is passed through the slot 32 and is moved
behind the plate 30 by turning the pillar 33, in
order to- retain the latter in. position.
In the top of each of the side supports i5 of the
head-rest between
there is the
secured
stirrup
a stirrup
and themember
side-sup—
55 providing
60
65
70
75.
port I5 2. socket to receive the lower part 3‘! of a
rear pillar of the tent frame. The lower part 31
of each rear pillar is conveniently of rigid con
struction and is secured to an upper part 33 which
is ?exible and is constructed for example of
spring steel. The resilient part 38 of each rear
pillar is bent over to engage under a strap 39 at
the upper end of the corresponding front pillar
33. A cross bar 40 is provided to connect the
upper ends of the pillars and this cross-bar has
at each end a right-angled portion M engaging
in a hole in the end of the ?exible part 38 of the
rear pillar and in a staple 42 secured to the front
pillar. The cross-bar 4D is preferably wider than
the chair so that the pillars 33 are splayed out
wardly towards the top. The lower part 3'! of
each rear pillar is slightly twisted so that the
upper ?exible part 38 may readily be bent down
to the upper ends of the front pillars. The tent
frame thus provided is adapted to receive a tent
covering as indicated at 43 in Figure 2. The tent
frame is. thus easily assembled and dismantled
and comprises when dismantled only a small
number of parts which are all straight and can
therefore be easily packed.
In a modi?cation of the chair as shown in Fig
ure 1, the head-rest is arranged to extend beyond
the main frame andthe main frame is itself made
correspondingly shorter. For instance, as shown
in Figure 11 the side-supports I5 of the head— 10
rest are secured to extension strips 45 pivotally
mounted on the side-members i2a of the stay
frame I2 of the chair. The struts I7 are pivoted
to lateral extension brackets I5a (Figure 11a),
secured to the side-supports I5 of the head-rest
in order that the struts may be folded within the
frame part I Ila in the folded position of the chair.
The struts I'I engage with the top of the frame~
members Illa, which in this instance, are shorter
than is usual. In the lowest position of the head
rest I6 it is substantially co-extensive with the
main seat I3_ so that the total length of the chair
may be at least as: long as the normal construc
tion of deck chair as shown in Figure 1. In the
folded condition, however, the head-rest IE folds
25
forwardly on to the frame-part I0 and the frame
part I lean conveniently be of shorter dimensions
without materially affecting the nature of the
chair, i. e., of the same length as the shortened
frame-part III. A chair which is short and com
pact in the folded condition is thus provided.
I claim:
1. In a chair, the combination with a chair
frame, of a head-rest comprising side~supports,
a ?exible rest member extending between and car
ried by said side-supports, means for hinging said
side-supports on the chair frame, two struts piv~
otally mounted at their forward ends one on each
of said side-supports, a cross link pivotally con
necting the said struts intermediate their ends, 40
engaging means on the outer sides of the res‘
ends of said struts, co-operating engaging means
on said chair frame engaging said means on the
struts, whereby pressure applied to the ?exible
rest member spreads the rear ends of the struts 45
apart to bring the engaging means thereon into
engagement with the co-operating engaging
means on the chair frame.
2. In a chair the combination with
chair
frame of a head-rest comprising side-supports, a 60
?exible rest member extending between and car
ried by said side-supports, means for hinging said
side-supports on the chair frame, two struts piv
otally mounted at their forward ends one on each
of said side-supports and provided with outward 55
ly-directed spaced projections at their rear ends
for engagement with the chair frame, and a
cross-link pivotally connecting said struts inter
mediate their ends.
3. In a chair comprising a folding chair frame 60
and a head-rest, the combination of head-rest
side-supports pivotally mounted on said frame, a
?exible rest member extending between and car
ried by said side-supports, a pair of rearwardly
extendingstruts pivotally mounted at their forward 65
ends one on each of said side-supports, which
struts are each provided at their rear ends with
a plurality of outwardly-directed spaced projec
tions, a cross link pivotally connecting said struts
intermediate their ends, guides on said chair
frame for receiving said struts and projecting 70
means therein and means carried by said frame
for engagement by the projections on said struts
when pressure is applied to the ?exible rest
member.
75
2,137,427
4. A folding chair according to claim 3, com
prising means for locking the struts in the said
guides.
5. In a folding chair, the combination with a
chair frame of a head-rest comprising side-sup
ports pivotally mounted one on each side of the
chair frame, a ?exible rest member extending
between said side-supports, a pair of rearwardly
extending struts pivotally mounted at their for
10 wardly ends one on each of said side-supports,
which struts extend within the chair frame and
are each provided with a plurality of outwardly
directed spaced projections at their rear ends for
engagement with the chair frame, a cross link
15 pivotally connecting said struts intermediate their
ends, means for locking said struts in ?xed rela
tion with the chair frame, two front pillars de
tachably mounted one on each side of the chair
frame at the front of the chair, two rear pillars
detachably mounted upon said side supports of
the head-rest, which rear pillars are flexible for
at least part of their length and are bent for
wardly and means for detachably connecting
the upper ends of the rear pillars to the upper
ends of the front pillars respectively.
6. Ina folding chair, the combination with a
chair frame of a head-rest comprising side
supports pivotally mounted one on each side of
the chair frame, a ?exible rest-member extend
ing between said side-supports, a pair of rear
wardly-extending struts pivotally mounted. at
their forward ends one on each of said side-sup
3
ports, which struts extend within the chair frame
and are each provided with a plurality of out
wardly directed spaced projections at their rear
ends for engagement with the chair frame, a
cross-link pivotally connecting said struts inter
mediate their ends, means for locking said struts
in ?xed relation with the chair frame, two front
pillars detachably mounted one on each side of
the chair frame at the front of the chair, two
rear pillars detachably mounted upon said side
supports of the head~rest, which rear pillars are
?exible for at least part of their length and are
bent forwardly to engage the upper ends of the
front pillars respectively, and a cross-bar detach
ably connected to the upper ends of the front
pillars.
7. In a chair the combination of a chair frame
of a head-rest comprising two side-supports,
means for hinging said side-supports on the chair
frame for adjustment backwards and forwards,
two struts pivotally mounted at their forward
ends, one on each of said side-supports and pro
vided at their rear ends with spaced abutments,
a ?exible member extending between the said
side-supports and a cross-link pivotally connect
ing the struts intermediate their pivotal mount
ing and their rearward ends, said chair frame be
ing provided with abutments engaged respec
tively vby the said abutments on the two‘ struts by
relative‘outward movement of the rear ends of
the struts.
ROY CAMPBELL THOMSON.
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