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Патент USA US2110338

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arch 8, 19.
Filed March 19, 195g
2 Sheéts-Sheet 1
H. Oermann
March 8;, 1938.
Filed March 19, 1936
2 Sheets-Sheet 2
Carl H. Oermann
Patented Mar. 8, 1938
Carl H. Oermann, York, Pa..
Application March 19, 1936, Serial No. 69,616
1 Claim.
This invention relates to chairs, particularly
to folding chairs of the type commonly used on
steamers, beaches, lawns, porches, etc.
An object of the invention is to provide an
improved chair of the above type which is easily
folded into a very compact condition when not in
use or for transportation.
(Cl. 155—75')
nected byv pins I8 to uprights I9 constituting
the back frame pieces of the chair.
The uprights orback frame pieces II] are con
nected, at spaced intervals below the pivotpins
I8, by'rods 20, 2| and 22.
The rod 20’is secured to the rear of the back
frame pieces I9 and is shaped to ?t or conform
to the back of a person sitting in the chair, said
Another object of the invention is to provide
an‘ improved folding chair of the above type rod. ZIP-constituting aback brace.
10 which may be provided with rockers.
The rods 2| and‘22 may be in the form of 10
Another object of the invention is to provide ' rounds, rod 22 being rigidly secured to the back
an improved folding chair of the above type with frame pieces I9 near the lower end thereof, and
which are incorporated means for enabling the the rod 2| being tightly ?xed to the backframe
chair to be either folded or unfolded with a mini‘
pieces I9 at a point intermediate the pivots I8 and‘
15 mum amount of effort.
the rod 22.
Another object of the invention is to provide
The lower ends of the uprights or back frame
an improved chair of the character mentioned, pieces l9 are connected to the rear legs III by
which is simple in construction, and reliable and links 23. One end of each link 23 is pivotally
exact in function under all conditions of service. connected to upright I9 by a pin 24, and the
The invention also comprises certain new and opposite end of each link is pivotally connected‘ 0
useful improvements in the construction, ar
to the rear leg M by a pin25. The links 23 have
rangement and combination of the several parts a suitable length and the purpose of said links
of which it is composed, as will be hereinafter will be hereinafter more fully described.
more fully‘ described and claimed.
The seat is formed of side rails 26 connected
In the accompanying drawings:25
at their front ends by a rod 2?. Therear ends‘ _
Figure 1 is a perspective of a chair constructed
of the side rails 26 are mounted on the rod 2|,
according ,to my invention and having rockers at
so that the seat frame is pivotally connected at
tached to the legs;
one end to the back frame constituted by the
.Fig. 2 is a perspective of a chair similar to the uprights l9. Pivot pins I3 extend through the
,chair shown in Fig. 1, constructed without rock
ers; and
Fig. 3 is avertical longitudinalsection‘ of the
chair shownin Fig. 1.
Referring to the drawings, the chair comprises
front legs II, positioned parallel to each other
andconnected by-a rod I2 near the bottom, saidv
I'Odi being; rigidly ?xed in any suitable manner
to brace the legs as is customary.
A pair of rear legs I4 are pivotally connected,
40 as at I3, at their forward ends, to the front legs
II, at a point intermediate the front legs, said
front legs extending a suitable distance above the
point where the rear legs are connected thereto.
When the chair is set up, the rear legs I4 ex
tend rearwardly and downwardly at a suitable
Spreading or relative movement of the rear
legs I4 with respect to each other, is prevented
by a tie rod I5, which is mounted in the outer
end portions of the rear legs, as shown in Figs.
1 and 3.
Pivoted by pins I6 mounted in the upper end
of the front legs II, are the front ends of arm
rests IT. The arm rests extend rearwardly, and
55 the rear end of said arm rests are pivotally con
front end portions of the side rails 26 so that .
said side rails, as well as the rear legs I4, are
pivotally connected to the front legs II at the
same point.
As shown in Fig. 1, spanning the space between
the uprights or back frame pieces I9, is- a strip
09 CI
of suitable fabric 28, such as canvas, duck, or the
like. The fabric 28 provides a back support for
an occupant of the chair.
Two pieces of fabric 29 and 30, may be used
for the seat, the piece of fabric 29 extending 40
from rod 21 at the front of the seat to the rear
rod 2 I, and the fabric 30 spanning the space be
tween the side rails 26 and underlying the fabric
29, as shown in} Fig. 3.
If so desired, the above described chair may
be provided with rockers 3|, as shown in Figs.
1 and 3.
Each rocker 3| comprises a curved piece of
material, pivotally mounted on extensions of
the lower tie rod l5 of the rear legs I4.
Near their front ends, the rockers 3| are con
nected by a tie rod 32, each end of which is ?xed
to the rockers.
The lower ends of the front legs II are formed
with notches 33 for engagement with the tie
2 >1 '
rod 32, and in order to connect the lower ends
of the front legs H to the rockers 3| when the
chair is set up, I utilize a pair of hooks 34. These
hooks may be formed from a suitable length of
stiff wire, one end of which is provided with an
eye 35 for the reception of a pin 36 which is
driven into'the front leg H, as shown in Fig. 3,
so as to pivotally mount the hook on said leg.
The parts of the frame of‘ the chair are so
10 arranged and positioned relatively to each other
as to permit the chair to be easily folded. The
front legs H and the back frame pieces l9 are
disposed in substantially the same plane. The
rockers 3| are disposed outside of the plane of
15 the front legs II and the back frame pieces I9,
and the rear legs l4 inside thereof. The side
rails 25 of the seat are disposed inside of the
plane occupied by the rear legs I4.
When it is desired to fold the chair, the hooks
34are ?rst detached from the tie rod 32, there
by permitting the front legs to be moved upward
ly and rearwardly to detach the notched por
tions 33 thereof ‘from the tie rod 32. The frame
of the chair is moved about the pivot provided
by rod I5, and during such movement the rear
legs I4 swing upwardly and the lower ends of
the back frame pieces l9 move outwardly from
The outward swinging movement of the back
frame pieces 19, is limited, due to the fact that
the lower ends of said back frame pieces are con
nected to the rear legs l4 by the links 23. By
so connecting theback frame pieces l9 and the
rear legs’ 14 together, the distance the ends of
said back frame pieces can move or swing out
wardly will be limited, and, therefore this con
struction permits ready and easy shifting of the
parts of the chair frame during the folding op
eration, whereby the back frame pieces 19 can
40 be moved towards the rear legs I4 and the front
legs II can also be swung inwardly towards the
rear legs.
When completely folded, the several parts ‘of
> the frame of the chair are nested together com
pactly, so that the chair can be easily carried or
transported in a minimum amount of space.
Dueto the provision of the links 23, when
the chair is folded, the back frame pieces l9 will
be retained in position with respect to the rear
legs l4, since vboth ends will be joined together.
When it is desired to unfold and set-up the
chair, the back is ?rst pulled upwardly, and
during such movement the back swings around
the fulcrum provided by the pins 24 of the
links 23.
Due to the pivotal connection of the arm rests
I'Iwith the back providedby pivots [8, the piv
otal connection of the seat side rails 26 with the
back provided by rod 2|, when the back is pulled
upwardly and outwardly, as has been described,
the front legs II will also be, moved. The lower
ends of the front legs'l I can next be moved over
and the notches 33 inserted on tie rod 32.
ing such movement of the front legs I I, the back
frame pieces l9 can be manipulated so as to move
the rod 22 so that said rod rests upon the rear
legs l4.
This action also moves the links 23 to
the position shown in Fig. 3, and the chair will
be completely unfolded and ready for occupancy,
after the hooks 34 are applied to the tie rod 32.
The above operation can be readily accomplished
by an inexperienced person, due to the fact that
the several parts of the chair frame are so con
nected together, as to permit easy movement
thereof in the manner heretofore described.
When the rockers 3| are omitted, the cross rod
I5 is ‘so made as to terminate with the rear legs 20
l4, and the notches 33 and hooks 34 are omitted
from the front legs H. Otherwise the plain or
straight chair, is similar in construction to. the
chair having the rockers.
Changes may be made in the details of con
struction and in the arrangement of the parts
above described within certain limits without
departing from the spirit of the invention.
Having thus described ‘my invention, what- I,
In a chair of the type described, front legs
connected near their lower ends by a transverse
rod, rear legs pivotally connected to the front legs
at an intermediate point below the upper ends
of said front legs, a transverse bar connecting
the outer ends of said rear legs, back frame pieces
connected by a pair of cross rods disposed, respec
tively, adjacent the lower end and the midpoint
of said back frame pieces, arm rests pivotally con
nected at their front ends to the upper ends of 40
said front legs and at their rear ends to said
back frame‘pieces at an intermediate point be
tween the upper back frame cross rod and the
upper end of said’ back frame pieces, a seat frame
comprising side rails connected at their front 45,
ends to the pivots connecting the rear legsand
the front legs, the rearends of said seat rails be
ing pivotally mounted‘ on the midpoint cross
rod of the back frame, means connecting the
lower ends of the back frame pieces with said
rear legs for permitting limited movement'of
the back frame with respect to said rear legs, a
pair of rockers pivoted to the transverse bar at
the outer end of said rear legs, and means for
detachably connecting the lower ends of the
front legs with the front portion of said rockers.
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